The Us Codes Standards And Regulations

Table D-6 Status of the US codes, standards, and regulations for hydrogen [17]

Regulated Aspects

Codes, Standards, Regulations

Status

Hydrogen production

NFPA 70/NEC/CEC Mature ASME Boiler and Pressure Vessel Code Mature (BPVC 1995) section VIII

Hydrogen transportation

49 CFR

Mature Mature

ANSI/ASME B31.1, B31.8

Mature Mature

Hydrogen storage

NFPA 50 A: Gaseous hydrogen NFPA 50 B: Liquid hydrogen

Mature (1994) Mature (1994)

Hydrogen filling station

HV-3: Hydrogen vehicle fuel HV-1: Hydrogen vehicle connector NFPA 52. CNG vehicle fuel NGV1: NGV connector

Under development Under development Base for HV-3 Base for HV-1

Hydrogen vehicle

HV-3: Hydrogen vehicle fuel NFPA 52: CNG vehicle fuel HV-2: Gaseous hydrogen tanks NGV2: CNG storage tanks

Under development Base for HV-3 Under development Base for HV2

Table D-7

The US codes federal regulations (CFR) for hydrogen [17]

CFR

Descriptions

- 40CFR86.25

- 40CFR68.130

Gaseous and cryogenic hydrogen handling and storage Chemical accident prevention provisions.

- Worst-case release scenario analysis.

- Threshold mass for accidental release prevention is given for H2.

49CFR Shipping and handling hydrogen gas and cryogenic hydrogen

- 49CFR 173.115 - GH2, LH2, and CH4 classified as hazard class 2 (flammable gas)

- 49CFR 172.101 - Quantity of GH2, LH2, or CH4 allowed in passenger aircraft or rail

49CFR Shipping and handling hydrogen gas and cryogenic hydrogen

- 49CFR 173.115 - GH2, LH2, and CH4 classified as hazard class 2 (flammable gas)

- 49CFR 172.101 - Quantity of GH2, LH2, or CH4 allowed in passenger aircraft or rail cars

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