Compressed Gases cont'd - doe-hdbk-1139-3-20050083

DOE-HDBK-1139/3-2005

Sources11

Consolidated Requirements12

4.5.34.3 Hose connections shall be kept free of grease

29CFR1926.350(e)(3)

and oil.

4.5.35 Hoses for oxy-fuel gas service shall comply with the

ANSI Z 49.1, 10.6.1;

Rubber Manufacturers Association IP-7 Specification

for Rubber Welding Hose.

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

4.5.36 Fuel gas hoses shall be red and oxygen hoses shall be

ANSI Z49.1, 10.6.2;

green when they are used for welding and cutting

activities.

29CFR1926.350(f)(1)

4.5.37 When parallel lengths of oxygen and fuel gas hoses are

ANSI Z49.1, 10.6.3;

taped together such as in a welding operation, not more

than 4 inches out of every 12 shall be covered by tape.

29CFR1910.253(e)(5)(ii);

29CFR1926.350(f)(2)

4.5.38 All hoses used for welding, cutting and other hot work

ANSI Z49.1, 10.6.4;

that will be used to carry hazardous gas (for example,

oxygen, fuel gases, oxidizers) shall be inspected at the

29CFR1910.253(e)(5)(v);

beginning of each working shift that they are to be

29CFR1926.350(f)(3)

used and any defective hoses shall be removed from

service.

[NOTE: Defects in hoses that shall render the hose no

longer useable include leaks, burns, and worn places

that render the hose unfit for service.]

4.5.39 Hose connections shall comply with the CGA

ANSI Z49.1, 10.6.5;

Pamphlet E-1, Regulator Connection Standards.

29CFR1910.253(e)(5)(iii)

4.5.39.1

Hose connections for welding gas lines shall

ANSI Z49.1, 10.6.5

not be compatible with breathing air

equipment.

4.5.39.2

Hose connections shall be able to withstand,

ANSI Z49.1, 10.6.6;

without leakage, twice the normal operating

pressure and not less than 300 psi.

29CFR1910.253(e)(5)(iv)

4.5.39.3

Oil-free air or an oil-free inert gas shall be

ANSI Z49.1, 10.6.6;

used to test hose connections.

29CFR1910.253(e)(5)(iv)

4.5.39.4

Storage areas for hoses shall be well

29CFR1926.350(f)(6)

ventilated.

4.5.40 Fuel gas and oxygen manifolds capacity limits,

ANSI Z49.1, 10,9.3;

locations and design criteria shall be in accordance

ANSI Z49.1, 10.9.4;

with NFPA 51 and 29CFR1910.253.

ANSI Z49.1, 10.9.5;

NFPA 51;

29CFR1910.253