GB/T 46429.2-2025 Active National standards

GB/T 46429.2-2025 Petroleum,petrochemical and natural gas industries—External corrosion protection of risers by coatings and linings—Part 2:Maintenance and field repair coatings for riser pipes

Publish Date: 2025-10-31 Implement Date: 2026-05-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: GB/T 46429.2-2025

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Oil drilling and extraction equipment and instruments

ICS Name: Exploration and drilling equipment

Publish Date: 2025-10-31

Implement Date: 2026-05-01

Pages: 72 pages

Scope

This document specifies the general principles, evaluation process, and construction procedures for the maintenance and on-site repair of riser corrosion protection coatings, as well as the selection criteria for corrosion protection coatings, testing procedures, and requirements for amorphous low-viscosity polyolefin-based corrosion protection coatings, Vaseline tape and wax-based tape winding systems, polychloroprene rubber-based elastic coatings, and liquid epoxy coatings.
This document applies to the maintenance requirements and on-site repair of riser coatings.
This document does not apply to the selection of technologies and materials for the integrity of risers to be coated, nor to the selection of other mechanical protection materials outside the corrosion protection coating systems described in this document.