Semnificație și utilizare

3.1 Since the pipe coating is subject to concentrated pressure exerted by the weight of the pipe and the backfill, this test is mainly used to determine the resistance of the coating to penetration or deformation under controlled conditions.

3.1.1 If the coating is not penetrated, the deformation of the compressible coating does not indicate a potential defect in the underground burial service. Deformation is not comparable to penetration coating.

ASTM G17-07-2020 “Standard Test Method for Permeability Resistance of Pipe Coatings (Tije tocite)”

Domeniul de aplicare

1.1 This accelerated test method is used to determine the relative resistance of steel pipe coatings to penetration or deformation of blunt rods under specified loads. This test method is applicable to the test of all kinds of non-metallic pipe coatings under various temperatures.

1.2 The value of three significant decimal places in SI units shall prevail. Valorile date în paranteze sunt doar pentru referință.

1.3 Acest standard nu este destinat să abordeze toate problemele de siguranță, dacă există, asociat cu utilizarea acestuia. Este responsabilitatea utilizatorilor acestui standard să stabilească siguranța corespunzătoare, health, and environmental practices and to determine the applicability of regulatory restrictions prior to use.

ASTM G17-07-2020 “Standard Test Method for Permeability Resistance of Pipe Coatings (Tije tocite)”

1.4 This international standard is developed in accordance with the internationally recognized standardization principles established in the decisions on International Standards, Guidelines and Recommended Principles issued by the WTO Technical Barriers to Trade (TBT) Committee.