午夜一级韩国欧美日本国产_欧美日韩国产高清视频二区_国产又粗又猛又爽在线视频_手机小视频国产在线观看_亚洲精品天堂无码中文字幕_亚洲永久精品www47_五十路熟妇电影免费观看_神马午夜电影光棍影院在线观看_爆乳无码AV国内_精品无码国产一区二区舔

Welcome to visit Shenzhen city Tongbiao company website!

WechatFAQSitemapFavorteChinese

Scan QR code, Pay attention to wechat

ShenZhenTobyTechnologyCo.,Ltd

Professional and authoritative testing and certification organization

ShenZhenTobyTechnologyCo.,Ltd

Service Hotline

400-681-9195

American ASTM certification

Contact Us

Introduction to the United States ASTM agency

Source: ShenZhenTobyTechnologyCo.,LtdPopularity: 1625Time: 2016-04-18SMB

The abbreviation of ASTM (American Society for testing and materials, the Technology Association was established in 1898. To study and formulate a material specification and test method standards, including a variety of materials, products, systems, services of the characteristics and performance standards.

ASTM (American Society for Testing and Materials, the American Society of testing and materials) was founded in 1898, is the earliest in the world, one of the largest non-profit standards development organization, the existing more than 32000 members, from more than 100 countries in the end users, producers, consumers, government and academic representatives of a total of 129.ASTM under the technical committee, with a total of 2004 sub committees, test methods, mainly to develop more than 130 professionals in the field of norms, rules, guidelines, classification and terminology standards, such as iron and steel products, non-ferrous metal products, metal test methods and analysis procedures, construction industry, petroleum products, lubricants and mineral fuels, paint, related coating fragrances, textiles, plastics, rubber, electrical and electronic insulation, water and environmental technology, atomic energy, solar energy and geothermal energy, medical equipment, general methods and testing instruments, general chemical products, special Products and final products. Current ASTM has published the high more than 10000 standard.ASTM standard quality, good adaptability, not only is the industry have adopted, and by the United States Department of defense and the federal government departments agencies to adopt.

ASTM published test methods, norms, practices,, guidelines, classification and terminology standard, by 132 Standard Compilation Committee work and its standard formulation work around the metal, coatings, plastics, textiles, petroleum, construction, energy, the environment, consumer goods, medical services and equipment, computer systems, electronics and other fields. Every year, 12000 a number of ASTM standards: in more than 70 volumes of annual book of ASTM standards.

Prev:none

Next:none