《SYT0556-1999-快速开关盲板》.pdfVIP

ICS23.040.99 115 备鑫号 :3069- 1999 SY 中华人民共和国石油天然气行业标准 SYiT0556- 1999 快速开关盲板 Quickopeningclosure 1999一05一17发布 1999一12一01实施 国家石油和化学工业局 发 布 SY/T 0556- 1999 目 次 前言 ·································································。·············································…… N 1 范围 ···············································································································…… 1 2 引用标准 ·········································································································…… 1 3 分类和命名 ······································································································…… 1 4 材料 ···············································································································…… 2 5 设计 ···························································，·················································…… 4 6 制造与检验 ······································································································…… 5 7 出厂检验 ········································································································…… 6 n 6 标志 ····························································································，················…… 6 C ， 包装 、运输 ································，································································… … 6 SY/P0556-1999 前 言 本标准是对SY5256-91(快速开关盲板》的修订，本次修订的主要内容是: 1.按产品标准GB/t1.3-1997要求的格式进行修订; 2.调整引用标准并以新代旧; 3.增加 “目次”、 “前言”及 “分类，，; 4原型式与基本参数一章取消，增加几种典型快速开关盲板的结构型式。 本标准从生效之日起，同时代替SY5256-910 本标准由中国石油天然气集团公司提出。 本标准由中国石油天然气集团公司规划设计总院归口。