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AWWA C225-14
AWWA C225-14 Fused Polyolefin Coatings for Steel Water Pipelines
Покрытия из сплавного полиолефина для стальных водопроводных труб
32 стр.
Действует
Печатная копия
166.80 $ (включая НДС 20%)
Разработчик:
Зарубежные/AWWA
Описание

This standard describes the materials and application of fused polyolefin coating systems for buried service. This system is applied in pipe coating plants, both portable and fixed, using coating techniques and equipment as recommended by the manufacturer.

The purpose of this standard is to provide purchasers, manufacturers, and constructors with the minimum performance requirements for fused polyolefin coating systems for the exterior of steel water pipelines for underground corrosion protection. The standard describes requirements for system components, application, inspection, testing, marking, and packaging.

Major revisions to this edition of the standard include

  1. The title was changed
  2. Requirements were divided into prequalification requirements and quality control requirements.
  3. Maximum thickness requirements were removed.
  4. The minimum value for nonpolyolefinic material was removed.
  5. The dielectric strength value is corrected.
  6. Cathodic disbondment is added.
  7. Quality control properties for the coated pipe are listed.
  8. The Verification section was updated.
  9. A test method was created to detail the peel adhesion test method of a coated pipe and to address rejection of pipe.
  10. Frequency of adhesion testing and adhesion testing of the outer layer tape are added.