API（美国石油学会）主要宗旨
API ( American Petroleum Institute ) the main purpose
API认证笼统层API的一项重要义务，就是担任石油和自然气工业用设备的标准化义务，以确保该工业界所用设备的安全、可靠和互换性。
API certification abstraction layer API is an important task, is responsible for the oil and gas industry equipment standardization work, to ensure that the industry used equipment is safe, reliable and interchangeability.
制定协调标准是API最早和最成功的项目之一，自192API认证
Develop and coordinate API standard is one of the earliest and most successful projects, since the 192API certification
4年发布第1个标准末尾，API如今已发布了500个标准。
4 years of published first standards, API has now released 500 standard.
API是ANSI认可的标准制定机构，其标准制定遵照ANSI的协和谐制定顺序准绳，API还与ASTM结合制定和出版标准，此外，API积极参与适宜全球工业的ISO标准的制定义务，是ISO/TC 671SC9井口设备和管线阀门的秘书处。
API is an ANSI approved standards bodies, the standard that follow the ANSI coordination and setting guidelines procedures, API and ASTM jointly developed and published standards, in addition, API actively participate in global industry for the development of ISO standards, ISO / TC 671SC9 wellhead equipment and the Secretariat of the pipeline valves.
API标准运用普遍，不只在国际被企业采用和被美国联邦和州法律法规以及运输部、国防部、职业安全与安康管理局、美国海关、环境维护署、美国地质勘查局等政府机构引用，而且也在世界范围内被ISO、国际法制计量组织和100多个国度标准所引用。 　　
API standards are widely used, not only in the domestic used by the enterprise and is the United States federal and state laws and regulations and the Department of transportation, the Department of defense, the occupation safety and health administration, the United States Customs, environmental protection agency, the United States Geological Exploration Bureau and other government agencies cited, but also in the world to be ISO, the international organization of Legal Metrology and 100 a number of national standards are referenced.
API标准主要是规则设备功用，有时也包括设计和工艺规范，标准制定范围包括石油消费、炼油、测量、运输、销售、安全和防火、环境规程等，其信息技术标准包括石油和自然气工业用EDI、通讯和信息技术运用等方面。 　　
API standard is the main provisions of the equipment performance, sometimes also includes the design and specifications, standards setting including oil production, oil refining, measurement, transportation, sales, fire protection, safety and environmental regulations, its information technology standards include petroleum and natural gas industries using EDI, communication and information technology applications.
API在美国国际以及在世界其他国度都享有很高的声望，它是美国商业部和美国贸易委员会招认的石油机械认证机构。它所制定的石油化工和采油机械技术标准被许多国度采用，中东、南美和亚洲许多国度的石油公司在招标推销石油机械时，普通都要求佩有API标志的产品才干有资历参与投标。
API in the United States and other countries in the world to enjoy high reputation, it is the United States Department of Commerce and the United States Trade Commission recognized certification body of petroleum machinery. It is developed by the petrochemical and oil production machinery and technology standard is used by many countries, the Middle East, South America and many Asian countries Petroleum Company in the bidding of oil machinery, requirements generally carry a sign API products in order to be eligible to participate in bidding.
因此，拥有API标志的石油机械设备不只被以为是质量可靠而且具有先进水平。目前，在包括勘探和消费、运输、精炼和市场营销等各个方面拥有来自全世界的会员。今天，API已展开成为不只在美国，而且越来越多地成为世界石油工业活动的无机组成部分。
Therefore, with API markers of petroleum machinery equipment is considered to be not only reliable quality and advanced levels. At present, including exploration and production, refining, transportation and marketing and other aspects from all over the world with members. Today, API has become not only in the United States, and increasingly become the world petroleum industry activity of organic components.