QUALIFIED CONTRACTORS Name

Page

ACCO Engineered Systems . . . . . . . . . . . . . . . . . . .26 Air Systems Inc. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27 De Bella Mechanical, Inc. . . . . . . . . . . . . . . . . . . . . .28 Environmental Systems Inc. . . . . . . . . . . . . . . . . . . .29 Ray L. Hellwig Plumbing & Heating, Inc. . . . . . . . .30 W. L. Hickey Sons, Inc. . . . . . . . . . . . . . . . . . . . . . . .31 ICOM Mechanical, Inc. . . . . . . . . . . . . . . . . . . . . . . . .32 Kinetics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33 O.C. McDonald Co., Inc. . . . . . . . . . . . . . . . . . . . . . .34 Paragon Mechanical Inc. . . . . . . . . . . . . . . . . . . . . . .35 Purity Systems, Inc. . . . . . . . . . . . . . . . . . . . . . . . . .36 Southland Industries . . . . . . . . . . . . . . . . . . . . . . . . .37 Therma, Inc. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38 Thermal Mechanical . . . . . . . . . . . . . . . . . . . . . . . . .39

TOXIC GAS ORDINANCE DATA BOOK

A Guide to the A Guide to the Latest Latest Regulations Regulations Plus Certified Contractors South Bay Piping Industry Labor/Management Trust 400 Reed Street, PO Box 58032 Santa Clara, CA 95052 408.970.8578 Visit us on the web at www.sbaypipe.org/tgo/

QUALIFIED CONTRACTORS Name

Page

ACCO Engineered Systems . . . . . . . . . . . . . . . . . . .26 Air Systems Inc. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27 De Bella Mechanical, Inc. . . . . . . . . . . . . . . . . . . . . .28 Environmental Systems Inc. . . . . . . . . . . . . . . . . . . .29 Ray L. Hellwig Plumbing & Heating, Inc. . . . . . . . .30 W. L. Hickey Sons, Inc. . . . . . . . . . . . . . . . . . . . . . . .31 ICOM Mechanical, Inc. . . . . . . . . . . . . . . . . . . . . . . . .32 Kinetics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33 O.C. McDonald Co., Inc. . . . . . . . . . . . . . . . . . . . . . .34 Paragon Mechanical Inc. . . . . . . . . . . . . . . . . . . . . . .35 Purity Systems, Inc. . . . . . . . . . . . . . . . . . . . . . . . . .36 Southland Industries . . . . . . . . . . . . . . . . . . . . . . . . .37 Therma, Inc. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38 Thermal Mechanical . . . . . . . . . . . . . . . . . . . . . . . . .39

TOXIC GAS ORDINANCE DATA BOOK

A Guide to the A Guide to the Latest Latest Regulations Regulations Plus Certified Contractors South Bay Piping Industry Labor/Management Trust 400 Reed Street, PO Box 58032 Santa Clara, CA 95052 408.970.8578 Visit us on the web at www.sbaypipe.org/tgo/

Acknowledgment The South Bay Piping Industry would like to thank Reinhard Hanselka for his contributions to the TGO Data Book 2008 Update.

TOXIC GAS ORDINANCE DATA BOOK TABLE OF CONTENTS

TGO Definitions .......................... 4 TGO Synopsis .............................. 6 General Requirements ................ 16 Common Toxic Gases ................. 21 Qualified Contractors ................. 26

TOXIC GAS ORDINANCE

DEFINITIONS The Toxic Gas Ordinance (TGO) and the California Fire Code, chapters 27, 37 and 41, use similar terminology and definitions. The most commonly used terms and definitions are listed here.

CBC

California Building Code.The Building Code adopted by the State of California for all local jurisdictions and State Facilities.

CEC

California Electrical Code. The Electrical Code adopted by the State of California for all local jurisdictions and State Facilities.

CFC

California Fire Code. The Fire Code adopted by the State of California for all local jurisdictions and State Facilities.

CMC

California Mechanical Code. The Mechanical Code adopted by the State of California for all local jurisdictions and State Facilities.

CPC

California Plumbing Code. Plumbing code adopted by the State of California for all local jurisdictions and State Facilities.

Ceiling Limit

Maximum concentration, expressed in ppm, to which one can be exposed.

Control Area

Space within buildings where regulated materials can be stored, handled, used or dispensed. A control area is defined in the CBC and is an area bounded by a one-hour separation.

Controls

Means used to regulate materials to prevent unauthorized discharges.

D.O.T.

Department of Transportation. United States Department of Transportation.

4 - Definitions

Guidelines

TGO Draft Consensus Guidelines. The Santa Clara County Fire Chiefs' Association set forth a clarification that has been adopted into the TGO.

IDLH

Immediately Dangerous to Life & Health. Material concentration, expressed in ppm, that represents the maximum level from which one could escape without suffering any impairment or irreversible health effects in a 30-minute time period.

LCLo

Lethal Concentration (Low). The lowest exposure level, expressed in ppm, at which some testing animals died following inhalation exposure. Lethal Concentration (50). The median exposure level, expressed in ppm, at which 50% of the testing animals died following inhalation exposure.

LC50

LDLo

Lethal Dose (Low). The lowest dose at which some test animals die when exposed. The dose is given in milligrams per kilogram of body weight.

LD50

Lethal Dose (50). The dose at which 50% of the test animals die when exposed. The dose is given in milligrams per kilogram of body weight.

Lab Std.

Laboratory Standard for limited use of toxic and highly toxic gases.

TGO

Toxic Gas Ordinance. The regulating code, adopted by most governmental agencies in the California Bay Area, for the use, distribution, handling and dispensing of Toxic Gases. In other locations and jurisdictions refer to chapters 27, 37 and 41 of the CFC.

Definitions - 5

TOXIC GAS ORDINANCE

SYNOPSIS A. Introduction The Toxic Gas Ordinance has established a class rating for all hazardous gases. The most hazardous gases are rated as Class I, moderately hazardous gases are rated as Class II, and Class III hazardous gases have less stringent requirements. Very small quantities of hazardous gases may fall into a separate category of Minimum Threshold Quantities (Min. T.Q.). B. Class I Hazardous Gases. A material that has a median lethal concentration (LC50) in air of 200 parts per million or less by volume of gas or vapor, or 2 milligrams per liter or less of mist, fume or dust, when administered by continuous inhalation for an hour, or less if death occurs within one hour, to albino rats weighing between 200 and 300 grams each. C. Class II Hazardous Gases. A material that has a median lethal concentration (LC50) in air more than 200 parts per million but not more than 3,000 parts per million by volume of gas or vapor, or more than 2 milligrams per liter but not more than 30 milligrams per liter of mist, fume or dust, when administered by continuous inhalation for an hour, or less if death occurs within one hour, to albino rats weighing between 200 and 300 grams each. D. Class III Hazardous Gases. A material that has a median lethal concentration (LC50) in air more than 3,000 parts per million but not more than 5,000 parts per million by volume of gas or vapor, or more than 30 milligrams per liter but not more than 50 milligrams per liter of mist, 6 - Synopsis

TOXIC GAS ORDINANCE

SYNOPSIS fume or dust, when administered by continuous inhalation for an hour, or less if death occurs within one hour, to albino rats weighing between 200 and 300 grams each. E. Minimum Threshold Quantities. Minimum Threshold Quantities can be any minor quantity of Class I, Class II or Class III Hazardous Gas. F. Class I Piping Requirements. In general, Class I Hazardous gases need to be dispensed in an inert piping system with welded connections. Class I gases also require a double containment system designed to withstand the sudden rupture or gradual release of the primary system. The secondary containment system must discharge into an approved treatment system. G. Class II Piping Requirements. In general, Class II Hazardous gases need to be dispensed in an inert piping system with welded connections. Secondary containment is not required unless the material is a corrosive and the primary dispensing piping system is not inert. H. Class III Piping Requirements. In general, Class III Hazardous gases need to be dispensed in an inert material piping system. Secondary containment is not required. I. Class I, II & III Special Requirements. In general, the use of any hazardous gas requires certain special requirements which depend on the classification of the hazardous gas. The general requirements for the various classifications are Synopsis - 7

TOXIC GAS ORDINANCE

SYNOPSIS listed in this publication. J. Exterior Storage. In general, the design of exterior storage must include the following criteria: • Distance from all exposures is 75 feet. • Storage, covered by canopy, with fire protection system. • Tank pressure relief vents must discharge to the treatment system. • Local exhaust at dispensing area that captures fumes and directs materials to treatment system. • Stationary tank equipped with excess flow valves on both inlet and outlet connections. • Leaker cabinet. K. Common gases which are not regulated by the TGO Silane, Nitrous Oxide and Sulfur Hexa-fluoride are specifically not regulated by the TGO. Some additional gases commonly used in industrial applications are also not regulated by the TGO: Hydrogen, Oxygen, Nitrogen, Helium and Argon. These gases are not toxic, although large concentrations could result in explosion, fire and/or asphyxiation. The storage, use and handling of these and other gases are regulated by the CBC, CFC, CMC and other codes.

8 - Synopsis

TOXIC GAS ORDINANCE

SYNOPSIS I. Materials Regulated

6) Alternative materials for toxic gases, e.g. Trimethyl Phosphite, Trimethyl Arsine, etc., shall be regulated by the TGO based on toxicological data or estimated by a qualified third party. 7) Mixtures of Regulated Materials In the absence of an established LC50 for a mixture containing a regulated material, the following formula may be used per appendix E103.1.3.1 of the CFC: For mixtures where the hazardous component is diluted with a non–taxic gas, the LC50 of the mixture is estimated by using the following formula: LC50 (mixture) =

(

1 % of component gas – Ci

)

LC50 i If more than one toxic component: LC50 (mixture) =

1 n

fi

Σ i=1

LC50i

Where Ci is the concentration od]=f the component and LC50i is the LC50 of that component based on a one hour exposure. 10) Halogenated, non-carbon based gases may hydrolyze to their base mineral acid upon contact with moisture. Therefore, the TGO requirements for these Synopsis - 9

TOXIC GAS ORDINANCE

SYNOPSIS gases shall apply to their decomposition products, i.e. monitoring, treatment, compatibility, etc. Example: Tungsten hexafluoride decomposes to hydrogen fluoride (HF), therefore, monitoring shall be required for HF at PEL, treatment shall be required for HF to 1/2 IDLH, and piping material must be compatible with HF or secondary containment shall be required. III. Piping and Controls 1) Partial gas system upgrades shall require permits under the same conditions as upgrades to existing underground fuel lines. For example: A.If a permit is required for a piping modification, then upgrading of the entire system for that gas will be required. B. If a permit is not required, such as for connecting an existing piping system to a new piece of equipment, then upgrading will not be required at this time. 2) All primary piping for toxic gas systems shall pass a Helium Leak Test of 10-9 cc/sec, where practical. Persons installing toxic gas piping systems shall be qualified. Persons conducting the tests must possess a certificate of training. Individual jurisdictions may require “third party” testing. 3) For the purpose of calculating the Maximum Threshold Quantity, storage tanks, cylinders and piping systems, which can be isolated in a manner approved by the Fire Chief, may be designated as separate storage vessels.

10 - Synopsis

TOXIC GAS ORDINANCE

SYNOPSIS IV. Inert Materials 1) Compatibility of materials shall be determined by the National Association of Corrosion Engineers. V. Incompatible Materials 1) Materials which, when in contact with each other, have the potential to react in a manner that generates heat, fumes, gases or byproducts which are hazardous to life or property. VI. Seismic Protection 1) Automatic shut-down shall be required for the toxic gas sources in the event of seismic activity as specified by each individual jurisdiction. VII. Gas Detection 1) Monitoring systems are to be tested at the point of use. 2) The interval time for “continuous” gas detection shall be determined by the Fire Chief in each jurisdiction. The Maximum interval time is 5 minutes. 3) Automatic shut-down shall occur upon gas detection at or below PEL in occupied areas, and at or below 1/2 IDLH in unoccupied areas. 4) Continuous gas detection may not be required to detect the presence of gas at or below the PEL when the upper range of the odor threshold limit is less than the PEL, as determined by the critiqued and approved data published by the American Industrial Hygiene Association, “Odor Thresholds for Chemicals with Established Occupational Health Standards” (1989, or as amended thereafter). Notwithstanding, monitoring may be required, however, to provide for the proper Synopsis - 11

TOXIC GAS ORDINANCE

SYNOPSIS function of the treatment system and other emergency controls. Moreover, this exemption may apply only in those jurisdictions which provide an exception based on the physiological warning properties of certain gases. VIII. Treatment Systems 1) Maximum release rates shall be calculated based upon a worst case, single event from a single cylinder, taking into account all engineering controls. 2) Restrictive flow orifices must be installed in the cylinder valve to be considered in calculating the maximum release rate from a cylinder. 3) Where cylinders are manifolded together, the maximum release rate shall be the sum of the release rates for all the manifolded cylinders. X. Secondary Containment 1) Secondary containment systems shall be approved and tested on a case by case basis by individual jurisdictions. 2) Secondary containment may not be required for systems operating under subatmospheric conditions (i.e. vacuum piping systems) if it is demonstrated that equivalent protection is provided. For example, when the system is equipped with an alarm and a fail-safe-to-close valve activated by a loss in vacuum pressure. XI. Portable Tanks and Cylinders 4) Excess flow control valves, as defined in CFC, Chapter 37, shall be permanently marked to

12 - Synopsis

TOXIC GAS ORDINANCE

SYNOPSIS indicate the maximum designed flow rate, based on air under standard conditions. 5) Encapsulating equipment designed to contain high pressure cylinders and their contents, as approved by the Fire Chief, shall be acceptable in meeting the intent of providing a gas cabinet or exhausted enclosure for leaking gas cylinders. XII. Inert Gas Purge Systems 1) A dedicated inert gas purge system may be used to purge more than one gas provided that the gases are compatible. 2) Purge gas systems must be located in an approved gas cabinet unless the system operates by vacuum demand. XIII. Existing Ammonia Refrigeration Systems 1) In facilities where ammonia refrigeration systems store more than the Max T.Q. (8,000 lbs.) in a single vessel, automatic valves shall be used to isolate zone areas or equipment areas to less than the Max T.Q. Isolation shall be achieved by shutting off the liquid supply to an area within the system. The isolated area shall then be evacuated by suction from the compressor. A. The isolated area shall not contain more than 8,000 lbs. of ammonia (calculated at normal temperature and pressure), and shall provide pressure relief for both gas and liquid. Pressure relief devices shall be directly connected to one or more of the following: 1. enclosed expansion chamber 2. exhausted enclosure

Synopsis - 13

TOXIC GAS ORDINANCE

SYNOPSIS 3. treatment B. Automatic isolation shall be provided for: 1. seismic, fire, or other remote location alarm 2. ammonia detection at 100 ppm, or at a concentration acceptable to the individual jurisdiction, not to exceed 250 ppm 3. emergency power failure 4. exhaust system failure 2) Redundant ammonia gas detection shall be used to monitor non-welded connections located within non-exhausted enclosures. A. Pipe valves shall meet current, nationally recognized standards (A.S.M.E./A.N.S.I. or ASHRAE Standards) for threaded and flanged valves. B. Sensors shall automatically isolate zone or equipment areas upon detection at 100 ppm, or at a concentration acceptable to the individual jurisdiction, not to exceed 250 ppm. C. Gas sensors shall be tested, at the discretion of the individual jurisdiction. 3) Approved vacuum procedures shall be used to purge an ammonia refrigeration system. A. Information shall be submitted to the individual jurisdiction which documents the vacuum purge procedure. Such information shall, at a minimum, include: 1. valve sequencing 2. ammonia flow directions 3. destination vessels

14 - Synopsis

TOXIC GAS ORDINANCE

SYNOPSIS B. A demonstration of the ammonia vacuum purge method (i.e. the procedure used for a leak repair) shall be performed at the discre tion of the individual jurisdiction. 4) Appropriate nationally recognized standards shall be used to verify a “tight” system. A. Information shall be submitted to the individual jurisdiction which documents that the system has passed pressure testing in accordance with current, nationally recognized standards for pressure testing ammonia systems. B. An ammonia gas sensing device, approved by the individual jurisdiction, shall be used to verify a “tight” system by a qualified, independent testing firm or during inspection conducted by the individual jurisdiction. Additional pressure testing (at 150% of maximum anticipated operating pressure) may be required at the discretion of the individual jurisdiction. C. Optional pressure testing (at 250% of maximum anticipated operating pressure) may be required at the discretion of the individual jurisdiction. N. Conclusion. Please note that this synopsis is only intended to serve as a set of guidelines. It is not to be used for design purposes without due consultation of the TGO and in accordance with local jurisdiction. Copyright c All rights reserved by the South Bay Piping Industry and Reinhard Hanselka. Synopsis - 15

16 - Requirements Regulated Material - Hazardous Material General Obligation Storage & Use Permit - Storage & Use Compliance Plan Plant Closure Plan Seismic Protection - Seismic Bracing Leak Testing - Material Delivery Protective Plugs & Caps in place - Safety Emergency Response Plan Emergency Response On-Site Team Emergency Drills - 3-Month intervals Annual Maintenance - Safety Test Flow-Limiting Orifices & Devices for Class I Fire Extinguishing System - Automatic Fire Sprinkler X X X X X X X X X X X X X X X X X X X X X X X X X X NA X X X X X X X X X X X X X NA X

CLASS I CLASS II CLASS III

GENERAL REQUIREMENTS X X X X X X X X X X X X NA X

MTQ

Requirements - 17

Automatic Shut Off For: Gas Detection Manual - Remote Power Failure Seismic Activity Primary Containment Failure Activation of Manual Fire Alarm Emergency Control Station: Staffed during hazardous material use Local Gas Shut Off Required For: Source and Point of Use Emergency Power For: Exhaust Ventilation Treatment System X X X

X X

X

X

X

X X X X X X

CLASS I CLASS II CLASS III

GENERAL REQUIREMENTS MTQ

18 - Requirements Gas Detection System Emergency Alarm System Temperature Control Excess Flow Control Gas Detection Reduced Flow Valves Seismic Shutoff Valves Class II Corrosives: Primary Piping Inert - w/o 2nd Containment: Primary Piping Not Inert - w/2nd Containment: Emergency Alarms Emergency Telephone in Corridor for: Chemical Distribution X X X X X

X X X X X X X

X X X X X X X

X

CLASS I CLASS II CLASS III

GENERAL REQUIREMENTS MTQ

Requirements - 19

Signage: Tank Placards Hazardous Signage No Smoking Inert Gas Purge System Dedicated Purge System Exhaust Ventilation System: Gas Cabinets (Storage Room) Separate Storage Room Separate Gas Cabinet Exhaust System Treatment System Gas Cabinets: Operated at Negative Pressure Self-Closing Openings Connected to Treatment System Minimum of 12-Gauge Steel X X X X X X X X X X X X

X X X X X X X X X X X X

X X X X

X X X X

X X X X

CLASS I CLASS II CLASS III

GENERAL REQUIREMENTS

X X X X

X X X X

MTQ

20 - Requirements Treatment System: Process all Exhaust to 1/2 IDLH at Discharge Design to realistic worst case for multiple gases Treatment System Sizing: Design for worst case (one tank) Stationary Tanks: Labeled with Max Release Rate (CFM) Rated for Highest Flow (CFM STP) Liquid Flow Supercedes Gas Flow (CFM STP) Portable Tanks and Cylinders - Max Release Rate: Calculate Max Flow Release to 100% Tank Volume Reduced Flow Valves, Sets Max Flow Rate X X X X X X X X

X X X X X X X X

X X

X X X

X

X X

CLASS I CLASS II CLASS III

GENERAL REQUIREMENTS

X X

X X X

X

X X

MTQ

Common Gases - 21

7664-41-7 UN1005 7784-42-1 UN2188 10294-33-4 UN2692 10294-34-5 UN1741 7637-07-2 UN1008 7726-95-6 UN1744 630-08-0 UN1016 7782-50-5 UN1017 10049-04-4 NA9191

Arsine - AsH 3 Boron Tribromide - Bbr 3 Boron Trichloride - BCl 3 Boron Trifluoride - BF3 Bromine - Br 2

Carbon Monoxide - CO Chlorine - Cl 2

Chlorine Dioxide - ClO 2

UN No.

CAS No./ Ammonia - NH 3

GAS & FORMULA

II

Corrosive6 WR-1

Toxic UR-3 Oxidizer WR-1

5 ppm

10 ppm

II

Toxic Corrosive Oxidizer II

1200 ppm

III

6

Flammable

3 ppm

I

HighlyToxic Corrosive Oxidizer

8

25 ppm

25 ppm

50 ppm

3 ppm

300 ppm

IDLH 3

II

Toxic WR-1

II

Toxic WR-2

I

III

Corrosive 6,7 Flammable Highly Toxic Flammable

TGO CLASS 2

UBC/CFC CLASS 1

250 ppm

293 ppm

3760 ppm

113 ppm

806 ppm

2541 ppm

380 ppm

20 ppm

4000 ppm

LC 50 4

0.5 ppm

1 ppm

120 ppm

0.3 ppm

2.5 ppm

2.5 ppm

5 ppm

0.3 ppm

30 ppm

LOC

500 lbs

586 lbs

7520 lbs

N/A

1612 lbs

5082 lbs

760 lbs

N/A

8000 lbs

MAX TQ

0.1 ppm

1 ppm ©

50 ppm

0.1 ppm

1 ppm ©

5 ppm

1 ppm ©

0.05 ppm

50 ppm

PEL 5

COMMON TOXIC GASES AS DEFINED BY THE TGO

22 - Common Gases 7790-91-2 UN1749 19278-45-7 UN1911 4109-96-0 UN2189 75-21-8 UN1040 7782-41-4 UN1045 7782-65-2 UN2192 10035-10-6 UN1048 7647-01-0 UN1050 74-90-8 UN1051

Diborane - B 2 H 6 Dichlorosilane - SiH 2 Cl 2 (HCl)

Ethylene Oxide - C 2 H 40 Fluorine - F 2 Germane - GeH 4 Hydrogen Bromide - HBr Hydrogen Chloride - HCl Hydrogen Cyanide - HCN

UN No.

CAS No./ Chlorine Trifluoride - ClF3

GAS & FORMULA

I

II

6

II

I

III

II

6

50 ppm

50 ppm

30 ppm

6 ppm

25 ppm 8

800 ppm

50 ppm

II

20 ppm

IDLH 3

15 ppm

2

I

II

TGO CLASS

6

Highly Toxic Flammable

Corrosive

Corrosive

UR-3 Toxic Flammable

Highly Toxic Oxidizer

Flammable UR-3

Toxic Corrosive Flammable

Highly Toxic Flammable WR-2

Toxic Oxidizer WR-3

UBC/CFC CLASS 1

40 ppm

2810 ppm

2860 ppm

622 ppm

185 ppm

4350 ppm

314 ppm

80 ppm

299 ppm

LC 50 4

5 ppm

5 ppm

3 ppm

0.6 ppm

2.5 ppm

80 ppm

5 ppm

1.5 ppm

2 ppm

LOC

N/A

5620 lbs

5720 lbs

1244 lbs

N/A

8700 lbs

628 lbs

N/A

598 lbs

MAX TQ

10 ppm

5 ppm ©

3 ppm

0.2 ppm

0.1 ppm

1 ppm

5 ppm ©

0.1 ppm

0.1 ppm ©

PEL 5

COMMON TOXIC GASES AS DEFINED BY THE TGO

9

Common Gases - 23 10102-44-0 UN1067

74-93-1 UN1064

Methyl Mercaptan - CH 3 SH

Nitrogen Dioxide - NO 2

624-83-9 UN2480

Methylisocyanate - CH 3 NCO

10102-43-9 UN1660

74-83-9 UN1062

Methyl Bromide - CH 3 Br

Nitric Oxide - NO

7783-06-4 UN1053

Hydrogen Sulfide - H 2 S

13463-39-3 UN1259

7783-07-5 UN2202

Hydrogen Selenide - H 2 Se

Nickel Carbonyl - Ni(CO)4

7664-39-3 UN1052

UN No.

CAS No./ Hydrogen Fluoride - HF

GAS & FORMULA

Highly Toxic Oxidizer WR-1

Highly Toxic Oxidizer

Highly Tox. UR-3 Flammable WR-1

Toxic Flammable

Highly Toxic Flammable WR-2

Toxic Flammable

Toxic Flammable

Highly Toxic Flammable

Toxic

UBC/CFC CLASS 1

I

20 ppm

100 ppm

2 ppm

I

I

150 ppm

3 ppm

250 ppm

100 ppm

1 ppm

30 ppm

IDLH 3

II

I

II

II

I

II

TGO CLASS 2

115 ppm

115 ppm

18 ppm

1350 ppm

22 ppm

1007 ppm

712 ppm

2 ppm

1300 ppm

LC 50 4

2 ppm

10 ppm

0.2 ppm

15 ppm

0.3 ppm

25 ppm

10 ppm

0.1 ppm

3 ppm

LOC

N/A

N/A

N/A

2700 lbs

N/A

2014 lbs

1424 lbs

N/A

2600 lbs

MAX TQ

5 ppm ©

25 ppm

0.001 ppm

10 ppm ©

0.02 ppm

20 ppm ©

20 ppm

0.05 ppm

3 ppm

PEL 5

COMMON TOXIC GASES AS DEFINED BY THE TGO

24 - Common Gases 75-44-5 UN1076 7803-51-2 UN2199 10025-87-3 UN1810 7647-19-0 UN2198 7719-12-2 UN1809 7783-79-1 UN2194 10026-04-7 UN1818 7783-61-1 UN1859 7803-52-3 UN2676

Phosphine - PH 3 Phosphorus Oxychloride - POCl 3 Phosphorus Pentafluoride - PF 5 Phosphorus Trichloride - PCl 3 Selenium Hexafluoride - SeF6 Silicon Tetrachloride - SiCl 4 (HCl) Silicon Tetrafluoride - SiF4 (HF) Stibine - SbH 3

UN No.

CAS No./ Phosgene - COCl 2

GAS & FORMULA

Highly Toxic Flammable

Toxic WR-2

Toxic Corrosive

Highly Toxic

Toxic UR-2 WR-2 Oxidizer

Toxic Oxidizer WR-1

Highly Toxic WR-2

Highly Toxic Pyrophoric

Highly Toxic WR-1

UBC/CFC CLASS 1

I

II

II

I

II

II

I

I

I

TGO CLASS 2

5 ppm

30 ppm

50 ppm

2 ppm

25 ppm

2.6 ppm

0.96 ppm

50 ppm

2 ppm

IDLH 3

8

8

20 ppm

450 ppm

750 ppm

50 ppm

208 ppm

260 ppm

96 ppm

20 ppm

5 ppm

LC 50 4

0.5 ppm

3 ppm

5 ppm

0.2 ppm

2.5 ppm

0.26 ppm

0.096 ppm

5 ppm

0.2 ppm

LOC

N/A

900 lbs

1500 lbs

N/A

416 lbs

520 lbs

N/A

N/A

N/A

MAX TQ

8,9

0.1 ppm

0.1 ppm

5 ppm ©

0.05 ppm (as Se)

0.5 ppm

3 ppm

0.1 ppm

0.3 ppm

0.1 ppm

PEL 5

COMMON TOXIC GASES AS DEFINED BY THE TGO

Common Gases - 25

2699-79-8 UN2191 7783-80-4 UN2195 7550-45-0 UN1838 7783-82-6 UN2196

Sulfuryl Fluoride - SO2 F 2 Tellurium Hexafluoride - TeF6 Titanium Tetrachloride - TiCl 4

Tungsten Hexafluoride - WF 6 (HF)

6

6

Toxic Corrosive WR-2

Highly Toxic Corrosive WR-2

Highly Toxic

Corrosive

Corrosive

UBC/CFC CLASS 1

II 30 ppm

1.3 ppm

I

200 ppm

100 ppm

IDLH 3

1 ppm

2

I

III

II

TGO CLASS

217 ppm

119 ppm

25 ppm

3020 ppm

2520 ppm

LC 50 4

3 ppm

0.13 ppm

0.1 ppm

20 ppm

10 ppm

LOC

434 lbs

N/A

N/A

6040 lbs

5040 lbs

MAX TQ

PEL 5

0.1 ppm

0.02 ppm (as Te)

5 ppm

5 ppm

Notes: 1. Class as defined in CFC: 1.) Health Hazards per Article 2; Highly Toxic = < 200 LC50, Toxic = 200 - 2,000 LC50. 2.) Physical Hazards per UFC Standard 79-3. 2. TGO Class Defined As: Class I = < 200 LC50, Class II = 200 - 3000 LC 50, Class III = 3001 - 5000 LC 50 3. IDLH values published in 2005 by the National Institute for Occupational Safety and Health (NIOSH). 4. LC50 data: Lowest reported value, 1 hour adjusted, taken from DOT, CGA, RTECS. 5. PEL values published by OSHA (29 CFR, part 1910.1000, Table Z-1) dated 7/1/95. OSHA values used if available, otherwise TLV from ACGIH or Cal OSHA values used. © = Ceiling Limit. 6. Moderately toxic as adopted by the cities of San Jose, Santa Clara, and Milpitas: LC50 = 2,000 - 5000. 7. When used as a refrigerant, UBC Class does not apply. See TGO consensus guidelines for additional information regarding ammonia refrigeration systems. 9. Cal OSHA PEL, Title 8, Section 5155, 9/1/95. 10. Threshold Limit Va lues (TLV) from the American Conference of Governmental Industrial Hygienists (1994-1995).

7446-09-5 UN1079

UN No.

CAS No./ Sulfur Dioxide - SO2

GAS & FORMULA

COMMON TOXIC GASES AS DEFINED BY THE TGO

DIRECTORY OF CONTRACTORS

ACCO Engineered Systems 1133 Aladdin Ave. San Leandro, CA 94577 Phone: 510.346.4300 FAX: 510.347.1317 Contact: John Hansen (Project Group Manager) Specialties: Your needs are our focus here at ACCO. Our goal is to provide cost effective solutions to your demanding projects. Whether it requires basic plumbing or complex chemical handling, our team will deliver a quality installation on-time and on budget. Plan & Spec, Design/Build or Assist, our specialists can provide products and services to meet your needs. From Bio-technology and organic synthesis, to semi-conductor and photonics fabrication, we install process systems to meet your manufacturing needs. For more information, see us on the web at www.accoes.com. Established 1934 Service Area: Western United States

26 - Directory

DIRECTORY OF CONTRACTORS

Air Systems Inc. 940 Remillard Court San Jose, CA 95122 Phone: 408.280.1666 FAX: 408.280.1020 Contact: Art Williams Specialties: Process Piping, Gas Panels & Valve Sticks, Plumbing, Clean Rooms, Energy Management Systems, Process Controls & Automation, Laser Aided Technology, C.R.P. Distributor & Installer, Bio-Pharmaceutical, Telecom & Data Centers, Commercial & Retail Complexes, Electrical Systems & Services, HVAC Service & Preventative Maintenance, Design/Build Engineering, Architectural Sheet Metal, HVAC Systems. Service Area: National Market Coverage

Directory - 27

DIRECTORY OF CONTRACTORS

DEBELLA MECHANICAL, INC.

De Bella Mechanical, Inc. 625 Nuttman Street Santa Clara, CA 95054 Phone: 408.980.8741 • Fax: 408.980.8744 Contact: Paul De Bella E-mail: [email protected] Specialties: De Bella Mechanical, Inc. was founded in 1987 and has now enjoyed over twenty years of continued success as a mechanical contracting company. From our inception as an Ultra High Purity (UHP) Process Piping contractor serving the high tech microelectronics/semiconductor industry, DMI has evolved into a full service mechanical serving the High-tech, Biotech, and Biopharmaceutical industries, as well as standard commercial HVAC plumbing. As a full service mechanical contractor, De Bella Mechanical, Inc. is working with all forms of piping and sheet metal applications, as well as providing preventative maintenance and 24-hour service to our clients. Our facilities houses welding and fabrication bays for both sheet metal andpiping, including a Class 100 clean room designed for pre-fabrication of custom high purity valve manifolds and gas panels with the most experienced and professional staff you could hope for. We believe our persinalized, high quality service and commtment to customer satisfaction separates De Bella Mechanical, Inc. from our competition by delivering positive results with innovative solutions. Service Area: West Coast and Hawaii

28 - Directory

DIRECTORY OF CONTRACTORS ep

Your C

o ol

Ke

ch

or

s

Me

a

ni

c al C ontra

ct

e s i

Environmental Systems Inc. 3353 De La Cruz Blvd. Santa Clara, CA 95054 Phone: 408.980.1711 FAX: 408.980.0714 Contact: Chris Enfantino Steve Meyer Specialties: Design Build Systems for piping, plumbing and HVAC; environmental chambers, chiller replacement; double-containment piping, high-purity gas and liquid piping, vacuum piping; biotech, certified clean rooms, metal fabrication, service and maintenance for all systems. Established in 1975. Service area: California e-mail: [email protected]

Directory - 29

DIRECTORY OF CONTRACTORS

Ray L. Hellwig Mechanical, Inc. Ray L. Hellwig Service Co., Inc. 1301 Laurelwood Road Santa Clara, CA 95054 Contact: Lewis Louie Plumbing, Process Piping and HVAC Wet Side Phone: 408.727.5612 FAX: 408.727.5619 Lonnie Michael, III Sheet Metal and HVAC Dry Side Phone: 408.727.5080 FAX: 408.727.5409 Doug Sudhi Service and Equipment Start-Up Phone: 408.727.8362 FAX: 408.727.1693 Specialties: High-purity gas and liquid piping; deionized water systems; chemical distribution systems; toxic and hazardous waste; cryogenics process vacuum systems and other process systems; clean room process equipment hook-up and fume scrubbing exhaust systems; demolition of contaminated piping and exhaust systems with hazardouswaste-operations-trained employees; quality plumbing, heating and air conditioning systems, medical gas systems and OSHPD projects. Service area: Greater San Francisco Bay Area and Sacramento region. 30 - Directory

DIRECTORY OF CONTRACTORS

W.L. Hickey Sons, Inc P.O. Box 61209 190 Commercial St. Sunnyale, CA 94088 Contact:

Roger Campbell T - 408.736.4938 F - 408.736.4055 Email - [email protected] Website: www.wlhs.com

Specialties: W.L. Hickey Sons, Inc is a company which has been installing quality plumbing systems for over 104 years. The company has played an integral part in the expansion of the Greater San Francisco Bay Area and surrounding areas. Our company prides itself on being one of the few conrtrctors to do both commercial and residentioal plumbing installations. This diversity has enabled us to do projects frommanufacturing facilities, distribution centers, multi-story office buildings, hotels, motels, restaurants, medical facilities, historical buildings, apartment complexes, along with over ten thousand residential homes. Service Area:

Greater San Francisco Bay Area and surrounding regions.

Directory - 31

DIRECTORY OF CONTRACTORS

ICOM Mechanical, Inc. 477 Burke St. San Jose, CA 95112 Phone: 408.792.2200 FAX: 408.292.4968 Contact: Dan Littleton [email protected] Specialties: ICOM Mechanical, Inc. was founded in 1981 with the intent to provide clients with the most professional, highest quality service possible. Our firm represents excellence in design, installation, maintenance and repair of HVAC, process piping systems and plumbing. ICOM is comprised of the following departments: • Design and Engineering — HVAC, Process Piping, Controls, Plumbing • Construction — HVAC, Process Piping, Plumbing, Controls • Service — Commissioning (Start-up), Maintenance & Repair on Mechanical Systems, Back Flow Prevention, Environmental and Process Controls, 24 Hour Emergency Repair Service area: West Coast ISO 9001 Certified

32 - Directory

DIRECTORY OF CONTRACTORS

Kinetics 48400 Fremont Blvd. Fremont, CA 94538 Phone: 510.683.6000 FAX: 510.683.6001 www.kinetics.com Specialties: Kinetics is a leading provider of high-purity process systems to the semiconductor, biotechnology, and pharmaceutical industries. Kinetics offers a full range of products and services including engineering, design fabrication, installation, chemical and slurry distribution, chillers, gas panels, MFCs, modular gas systems, HVAC, and QA/QC. With 25 years of experience, and resources spanning the globe. Kinetics offers turnkey, design/build solutions with the assurance of single-source accountability. Service area: West Coast

Directory - 33

DIRECTORY OF CONTRACTORS

O.C. McDonald Co., Inc. 1150 W. San Carlos St. San Jose, CA 95126 Phone: 408.295.2182 FAX: 408.295.0626 email: [email protected] web: www.ocmcdonald.com Contact: Service Department for *Certified Specialists Specialties: Serving — Biotech Facilities; Pharmaceutical; Semiconductor; Disc Manufacturers; Chemical Companies; Telecommunication; Aerospace; Utilities; Government Bldgs.; Manufacturing; Hospitals; Apartments; Hotels; Office Complexes; Food Processing; High Rise Buildings; General Contractors; Industrial Plants; Airports. Isolation Containment — All Sizes up to 12"; Pressure Vacuum Breakers; Double Check Valves; Reduced Pressure Assemblies; Cross Connection; Custom Service Plan to test, survey, repair, and certify all devices Annually. Other Specialties — High Purity Process Piping; Medical Gas Stations; Stainless Steel Piping; Mechanical & HVAC Systems; Clean Room Fabrication; Ultra Pure Water Systems; Preventive Maintenance For HVAC Systems. Service Area: Santa Clara County, Alameda County, San Mateo County, Santa Cruz, Carmel and the Central Valley.

34 - Directory

DIRECTORY OF CONTRACTORS

PARAGON MECHANICAL INC.

Paragon Mechanical Inc. 2460 Dela Cruz Blvd Santa Clara, CA 95050 Phone: 408.727.7303 FAX: 408.566.6190 Contact: John Watson/Jeff Miller Specialties: Design/Build; Microelectronics; Bio-Pharmaceutical; Clean Rooms; Cryogenics; Service Dept; Aerospace; Commercial & Industrial; Hydronics; Laboratories; Medical Gases; Process Piping; HVAC; Architectural Sheet Metal; and Metal Roofing. Quality Craftsmanship. Service Area: California

Directory - 35

DIRECTORY OF CONTRACTORS

Purity Systems, Inc. 2109 O’Toole Ave., Suite I San Jose, CA 95131 Phone: 408.435.9119 FAX: 408.435.1155 email: [email protected] [email protected] Contact: Anthony Aguillon Shawn Lambeth Specialties: Purity Systems, Inc. has provided Professional, Scientific, and Technical Services to Microelectronics, Biotech, Pharmaceutical, and Aerospace Industries since 1984. We specialize in Quality Assurance Inspection and Testing of Ultra High Purity Process Piping Systems including: Analytical Testing PPB range; Helium Leak Detection, Borescope Inspection, Code Consulting, HazMat Consulting, Design and Specification Review, Metallurgical Consulting, Corrosion Consulting, ASME Code Compliance, and Failure Analysis. All Inspectors and Technicians are qualified to ASNT-SNTTC-1A MSLT Level II or VT Level II. On staff P.E. Welding/Metallurgical Engineer & PhD Material Scientist. Purity Systems is your partner in Quality

A veteran owned business.

36 - Directory

DIRECTORY OF CONTRACTORS

Southland Industries 775 Commercial Street San Jose, CA 95112 Phone: 408.970.3777 FAX: 408.970.3776 www.southlandind.com Contact: Scott Muxen Specialties: As the 6th largest design build mechanical contractor in the nation SI is focused on our core purpose of "Building Customers for Life". SI specializes in design and construction of HVAC, Plumbing, Process Piping systems, and the service of them. We have extensive experience in semiconductor, biotechnology, industrial, and commercial applications. Call us and put our 55+ years of experience to work for you helping with solutions to your facilities needs. Service Area: Nationwide Directory - 37

DIRECTORY OF CONTRACTORS

Therma, Inc. 1601 Las Plumas Avenue San Jose, CA 95133-1613 Phone: 408.347.3400 FAX: 408.347.3434 www.therma.com Contact: Service Department Specialties: Founded in 1967, Therma is the largest full service mechanical contractor in the Bay Area. Our focus has been on the multifaceted needs of the industrial, commercial, electronic, and biopharmaceutical users. Our installers include HVAC, Piping and Plumbing projects throughout California.

38 - Directory

DIRECTORY OF CONTRACTORS

THERMAL MECHANICAL

Thermal Mechanical Inc. 425 Aldo Avenue Santa Clara, CA 95054 Phone: 408.988.8744 FAX: 408.988.0233 Contact: Richard Rood [email protected] Specialties: Commercial and industrial process piping; plumbing; HVAC; design and installation; clean rooms; low-temperature and environmental systems; special applications. Design, Sales, Construction and Service Department serving the San Francisco Bay Area. Since 1969.

Directory - 39

South Bay Piping Industry Get the Job Done Right! • Construction • Service & Repair • Scheduled Maintenance • Plumbing • High-Purity Systems • Air Conditioning • Refrigeration South Bay Piping Industry contractors keep pace with swiftly advancing technology in industries like green construction, biotechnology, pharmaceuticals, energy management and health care. They're team players, all the way from initial design through construction to maintenance. Only South Bay Piping Industry contractors come to the job with technicians that have the comprehensive training and skills certification provided by the Pipe Trades Training Center in San Jose. To stay ahead of the curve of advancing technology requires a commitment to training and education. Training Center programs allow our technicians to master their skills and keep them upto-date. Together, our contractors and technicians give our customers the peace of mind of knowing the job's done right. Visit our website - www.sbaypipe.org.

"Protecting the health and safety of our community for over 100 years"

40 - Directory

QUALIFIED CONTRACTORS Name

Page

ACCO Engineered Systems . . . . . . . . . . . . . . . . . . .26 Air Systems Inc. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27 De Bella Mechanical, Inc. . . . . . . . . . . . . . . . . . . . . .28 Environmental Systems Inc. . . . . . . . . . . . . . . . . . . .29 Ray L. Hellwig Plumbing & Heating, Inc. . . . . . . . .30 W. L. Hickey Sons, Inc. . . . . . . . . . . . . . . . . . . . . . . .31 ICOM Mechanical, Inc. . . . . . . . . . . . . . . . . . . . . . . . .32 Kinetics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33 O.C. McDonald Co., Inc. . . . . . . . . . . . . . . . . . . . . . .34 Paragon Mechanical Inc. . . . . . . . . . . . . . . . . . . . . . .35 Purity Systems, Inc. . . . . . . . . . . . . . . . . . . . . . . . . .36 Southland Industries . . . . . . . . . . . . . . . . . . . . . . . . .37 Therma, Inc. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38 Thermal Mechanical . . . . . . . . . . . . . . . . . . . . . . . . .39

TOXIC GAS ORDINANCE DATA BOOK

A Guide to the A Guide to the Latest Latest Regulations Regulations Plus Certified Contractors South Bay Piping Industry Labor/Management Trust 400 Reed Street, PO Box 58032 Santa Clara, CA 95052 408.970.8578 Visit us on the web at www.sbaypipe.org/tgo/

QUALIFIED CONTRACTORS Name

Page

ACCO Engineered Systems . . . . . . . . . . . . . . . . . . .26 Air Systems Inc. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27 De Bella Mechanical, Inc. . . . . . . . . . . . . . . . . . . . . .28 Environmental Systems Inc. . . . . . . . . . . . . . . . . . . .29 Ray L. Hellwig Plumbing & Heating, Inc. . . . . . . . .30 W. L. Hickey Sons, Inc. . . . . . . . . . . . . . . . . . . . . . . .31 ICOM Mechanical, Inc. . . . . . . . . . . . . . . . . . . . . . . . .32 Kinetics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33 O.C. McDonald Co., Inc. . . . . . . . . . . . . . . . . . . . . . .34 Paragon Mechanical Inc. . . . . . . . . . . . . . . . . . . . . . .35 Purity Systems, Inc. . . . . . . . . . . . . . . . . . . . . . . . . .36 Southland Industries . . . . . . . . . . . . . . . . . . . . . . . . .37 Therma, Inc. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38 Thermal Mechanical . . . . . . . . . . . . . . . . . . . . . . . . .39

TOXIC GAS ORDINANCE DATA BOOK

A Guide to the A Guide to the Latest Latest Regulations Regulations Plus Certified Contractors South Bay Piping Industry Labor/Management Trust 400 Reed Street, PO Box 58032 Santa Clara, CA 95052 408.970.8578 Visit us on the web at www.sbaypipe.org/tgo/