T/CAS ES210708001-2022 Active

Scope: This document specifies the evaluation procedures and requirements for quality grading of steel welded pressure vessels, evaluation methods, and quality grading. This document applies to quality grading evaluation activities for steel welded pressure vessels, except for the following products: — Tower vessels; — Heat exchangers; — Reaction vessels; — Ball tanks; — Vertical cylindrical steel welded storage tanks; — Fixed vacuum-insulated cryogenic pressure vessels; — Multi-layer pressure vessels. Main Technical Content: 1. Scope This document specifies the evaluation procedures and requirements for quality grading of steel welded pressure vessels, evaluation methods, and quality grading. This document applies to quality grading evaluation activities for steel welded pressure vessels, except for the following products: — Tower vessels; — Heat exchangers; — Reaction vessels; — Ball tanks; — Vertical cylindrical steel welded storage tanks; — Fixed vacuum-insulated cryogenic pressure vessels; — Multi-layer pressure vessels. 2. Normative References The following documents are essential for the application of this document. For any referenced document with a date, only the version dated on that date applies to this document. For any referenced document without a date, the latest version (including all amendment sheets) applies to this document. GB/T 150 (all parts) Pressure Vessels GB/T 4336 Carbon Steel and Low-Alloy Steel Determination of Multi-Element Content Spark Discharge Atomic Emission Spectrometry (Conventional Method) GB/T 11170 Stainless Steel Determination of Multi-Element Content Spark Discharge Atomic Emission Spectrometry (Conventional Method) GB/T 13298 Metallographic Examination Methods GB/T 17394 (all parts) Metallic Materials Leeb Hardness Test GB/T 24001–2016/ISO 14001:2016 Environmental Management System Requirements and Guidelines for Use GB/T 28001–2011/OHSAS 18001