The following references are essential to this Specification.For dated references，the dated version thereof shall apply.For undated references，the latest version（including all amendments）thereof shall apply.

GB/T 19001-2008 Quality Management System—Requirements

GB/T 24001-2004 Environmental Management System—Requirements with Guidance for Use

GB/T 28001-2011 Occupational Health and Safety Management System—Requirements

GB 50300 Unified Standard for Constructional Quality Acceptance of Building Engineering

GB 50517 Code for Construction Quality Acceptance of Metallic Piping in Petrochemical Engineering

SH/T 3508 General Specification for Construction and Acceptance for Petrochemical Engineering

TSG Z0004 Basic Requirements for Special Equipment Quality Assurance System on Manufacture，Installation，Alternation and Repair tcfQNvZ6hxknlVo86NFhPvve4Wga3lu65RxEmoe4V5gT61n7Lcdz5L3aZg7HAVft