Compressed Gases cont'd - doe-hdbk-1139-3-20050084

DOE-HDBK-1139/3-2005

Sources11

Consolidated Requirements12

4.5.41 Fuel gas and oxygen manifolds shall be installed under

CGA G-1, 5.1.4;

the supervision of someone familiar with the proper

practices.

29CFR1910.253(c)(5)(i)

4.5.42 All manifolds and their parts shall be used only for

ANSI Z49.1, 10.9.2;

those gases for which they are approved.

29CFR1910.253(c)(5)(ii)

4.5.42.1

Manifolds shall be approved either

ANSI Z49.1, 10.9.1;

separately for each of their components or

as an assembled unit.

NFPA 51, 3-2.1;

NFPA 51, 3-1.1;

29CFR1910.253(c)(1)(i)

4.5.43 Manifolds shall bear the name of the substance

29CFR1926.350(e)(1)

contained inside in letters at least 1 inch high either

directly painted upon the manifold or on a sign

permanently affixed to the manifold.

4.5.43.1 Low pressure manifolds shall be marked as

NFPA 51, 3-3.5

such to prevent the attachment of high

pressure cylinders.

4.5.44 Fuel gas and oxygen manifolds shall be located in safe,

29CFR1926.350(e)(2)

well ventilated, accessible locations and not within

enclosed spaces.

4.5.45 Fuel gas and oxygen manifold hose connections shall

29CFR1926.350(e)(3)

be such that hoses cannot be interchanged between fuel

gas and oxygen manifolds and supply header

connections.

4.5.45.1 Adapters shall not be used to permit the

29CFR1926.350(e)(3)

interchange of hoses.

4.5.46 When not in use, fuel gas and oxygen manifold and

29CFR1926.350(e)(4)

header connections shall be capped.

4.5.47 Nothing shall be placed on top of a fuel gas and

29CFR1926.350(3)(5)

oxygen manifold that will damage the manifold or

interfere with the quick closing of the valves.

4.5.48 Portable outlet headers shall not be used indoors except

NFPA 51, 3-4.1

for temporary service as approved by the Occupational

Safety and Fire Protection Department.