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ASTM G18-88(1998)
Standard Test Method for Joints, Fittings, and Patches in Coated Pipelines (Withdrawn 2007)
Automaticky přeložený název:
Standardní zkušební metoda pro klouby , kování, a oprav v potažených Potrubí (Withdrawn 2007 )
NORMA vydána dne 10.7.1998
Informace o normě:
Označení normy: ASTM G18-88(1998)
Poznámka: NEPLATNÁ
Datum vydání normy: 10.7.1998
Kód zboží: NS-57545
Počet stran: 5
Přibližná hmotnost: 15 g (0.03 liber)
Země: Americká technická norma
Kategorie: Technické normy ASTM
Anotace textu normy ASTM G18-88(1998) :
Keywords:
capacitance, coating, current, dissipation factor, fittings, immersion, joint, leakage, patches, pipeline, resistance, ICS Number Code 23.040.01 (Pipeline components in general. Pipelines)
Doplňující informace
| 1. Scope | ||
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1.1 This test method describes determination of the comparative corrosion preventative characteristics of materials used for applications to joints, couplings, irregular fittings, and patched areas in coated pipelines. The test method is applicable to materials whose principal function is to act as barriers between the pipe surface and surrounding soil environment. 1.2 The test method described employs measurements of leakage current, capacitance, and dissipation factor to indicate changes in the insulating effectiveness of joint and patching materials. 1.3 This standard does not purport to address all of the safety problems, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. 1.4 The values stated in SI units to three significant decimals are to be regarded as the standard. |
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| 2. Referenced Documents | ||
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