API标准的分类
The API Standard Classification
API标准共分两个方面三大类
The API standard is divided into two parts of three categories
1.体系认证   企业建立并保持ISO9001〈美国国家推荐标准API spee Q1-2003第七版石油、石化和天然气工业质量纲要规范〉现代化的质量管理体系。要求：体系认证按ISOQ1要求。
1 system certification enterprises to establish and maintain ISO9001 the United States ' national recommended standards API spee Q1-2003 seventh edition petroleum, petrochemical and natural gas industries - Specification for quality programs ' modern quality management system. Requirements: certification system according to the requirement of ISOQ1.
2.标志认证    按产品类别进行分类、三大类800余品种，参加标准目录。
2 mark certification by product categories, three categories of more than 800 varieties, in the standard catalog.
a.石油设备设计及制造规范
A. Petroleum equipment design and manufacturing specifications
b.石油设备使用及维护推荐做法
B recommended practice for petroleum equipment application and maintenance
c.钻井及采油作业推荐做法
C Recommended Practice for drilling and production operations
一般情况下，API标准每5年至少进行一次复审、修改、重新确认或撤消。有时复审周期可延长一次，但延长不超过2年。
In general, API standards at least every 5 years to carry out a review, modification, to confirm or cancel. Sometimes review cycles may be extended once, but the extension shall not exceed 2 years.