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24.0865 Test Requirements---General.

Cite as [A.S.A.C. § 24.0865]

(a) No person may operate a new segment or pipeline, or return to service a segment of pipeline that has been relocated or replaced, until:

(1) It has been tested in accordance with these standards and regulations to substantiate the maximum allowable operating pressure; and

(2) Each potentially hazardous leak has been located and eliminated.

(b) The test medium must be liquid, air, natural gas, or inert gas that is:

(1) Compatible with the material of which the pipeline is constructed;

(2) Relatively free of sedimentary materials; and

(3) Except for natural gas, nonflammable.

(c) Except as provided in 24.0871(a), if air, natural gas, or inert gas is used as the test medium, the following maximum hoop stress limitations apply:

Class Location

Maximum hoop stress allowed as percentage of SMYS

 

1………………………………………………………………

2………………………………………………………………

3………………………………………………………………

4………………………………………………………………

Natural GasAir or inert gas

8080

3075

3050

3040

(d) Each joint used to tie in a test segment of pipeline is excepted from the specific test requirements of these standards and regulations, but each non-welded joint must be leak tested at not less than its operating pressure.

History: Rule 02-01, eff 30 Aug 01.