ASME背景介绍
ASME是American Society of Mechanical Engineers（美国机械工程师协会）的英文缩写。美国机械工程师协会成立于1880年，在世界各地建有分部，是一个有很大权威和影响的国际性学术组织。ASME主要从事发展机械工程及其有关领域的科学技术，鼓励基础研究，促进学术交流，发展与其他工程学、协会的合作，开展标准化活动，制定机械规范和标准。 它拥有125000个成员，管理着全世界最大的技术出版署，主持每年30个技术会议，200个专业发展课程，并制订了许多工业和制造标准。
自成立以来，ASME领导了机械标准的发展，从最初的螺纹标准开始到现在已发展了超过600多个标准。1911年成立了锅炉机械指令委员会，在1914到1915年颁布了机械指令，以后该指令又与各个州及加拿大的法律相结合。ASME 已成为主要在技术、教育及调查领域内世界性的工程学机构。此外，ASME还是ANSI五个发起单位之一。ANSI的机械类标准，主要由它协助提出，并代表美国家标准委员会技术顾问小组，参加ISO的活动.
ASME认证项目分类及适用范畴
ASME认证项目包括以下四大类：
锅炉及压力容器（BPV）
核动力装置（N-Type）
核原料（QSC）
树脂及塑料容器（RTP）
针对这些认证项目，ASME向世界范围内的生产企业授予25种钢印及相应的认证证书。 其中字母Ｕ开头的属压力容器范畴，字母Ｈ开头的属锅炉类产品范畴，字母Ｎ开头的属于核动力装置范畴。目前，我国通过ASME认证的企业已有127家，其中大部分获得了U钢印和S钢印。
通过ASME认证的中国企业名单
截至2004年12月，中国已有127家企业通过了ASME认证， 这些企业的名单如下：
AIR LIQUIDE (HANG ZHOU) CO., LTD.
ANQING PETROCHEMICAL MACHINERY WORKS
SHENZHEN YOUCHENG CHEMICAL CO.,LTD
BABCOCK-HITACHI DONGFANG BOILER CO., LTD.
BAOJI NONFERROUS METAL WORKS
BDT ZHANGJIAKOU LTD
BEIJING CHEMICAL MACHINERY WORKS
BEIJING YANSHAN PETROCHEMICAL CONSTRUCTION & INSTALLATION ENGINEERING COMPANY
pOAD AIR CONDITIONING CO., LTD.
BUCCMA ACCUMULATOR (TIANJIN) CO., LTD.
CHANGZHOU AIRCRAFT MANUFACTURE CO., LTD.
CHANGZHOU CEM CRYO EQUIPMENT CO., LTD.
CHINA FIRST HEAVY INDUSTRIES CO., LTD.
CHINA HUADIAN ENGINEERING CORPORATION
CHINA NATIONAL ERZHONG GROUP CO.
CHINA PETROLEUM 7TH CONSTRUCTION COMPANY
CHIWAN SEMBAWANG ENGINEERING CO. LTD.
CNPC LIAOYANG PETRO-CHEMICAL FIpE COMPANY
DALIAN BINGSHAN GROUP JINZHOU HEAVY MACHINERY CO., LTD.
DALIAN HITACHI BAOYUAN MACHINERY & EQUIPMENT CO., LTD.
DALIAN NANHAI PRESSURE VESSEL FACTORY
DALIAN SANYO REFRIGERATION CO., LTD.
DAQING PETROCHEMICAL MACHINERY FACTORY
DELTAK POWER EQUIPMENT (CHINA) CO. LTD.
DONGFANG BOILER (GROUP) COMPANY, LTD.
FONG‘S NATIONAL ENGINEERING (SHENZHEN) CO., LTD.
FOSTER WHEELER POWER MACHINERY COMPANY LIMITED
FUSHUN MACHINERY MANUFACTURING CO., LTD.
FUSHUN PETROLEUM MACHINE CO., LTD.
GEA (JIANGYIN) PROCESS EQUIPMENT CO., LTD.
GUANGDONG SHANFENG CHEMICAL MACHINERY CO., LTD.
GUANGZHOU GUANGZHONG ENTERPRISE GROUPS COMPANY
HANDAN XINXING PETROCHEMICAL MACHINERY CO., LTD.
HANGZHOU BOILER GROUP CO., LTD.
HANGZHOU FULTON THERMAL EQUIPMENT CO., LTD.
HANGZHOU HANGYANG CO., LTD.
HARBIN AIR CONDITIONING CO., LTD.
HARBIN BOILER COMPANY LIMITED
HARBIN ROPV INDUSTRY DEVELOPMENT CENTER
HEBEI HONGRUN PIPING GROUP CO., LTD.
HEFEI SOUTH-EAST CHEMICAL MACHINERY CO. LTD.
HUNAN XIANGDONG CHEMICAL MACHINERY CO., LTD.
JIANGHAN PETROLEUM MACHINERY PLANT
JIANGNAN BOILERS & PRESSURE VESSELS
JIANGSU SHUANGLIANG AIR-CONDITIONING EQUIPMENT CO., LTD.
JIANGSU SUNPOWER PETROCHEMICAL
JIANGXI JIANGLIAN ENERGY & ENVIRONMENT CO., LTD.
JILIN (JIHUA) CHEMICAL GROUP MACHINERY CO., LTD.
JINAN BOILER GROUP COMPANY, LTD
JINAN PRESSURE VESSEL FACTORY
JINXI CHEMICAL MACHINERY (GROUP) CO. LTD.
KAIFENG AIR SEPARATION GROUP CO., LTD.
KNM SPECIAL PROCESS EQUIPMENT (CHANGSHU) CO., LTD.
LANZHOU PETROLEUM AND CHEMICAL MACHINERY WORKS
LIANYUNGANG SENOH MEDICAL EQUIPMENT CO., LTD.
LIYANG YUNLONG CHEMICAL EQUIPMENT CO., LTD. JIANGSU
MAOMING PETROCHEMICAL MACHINERY PLANT (MPMP)
MCQUAY AIR CONDITIONING AND REFRIGERATION (WUHAN) CO. LTD.
NANJING BAOSE TITANIUM INDUSTRY CO., LTD.
NANJING CHENGUANG – TORA EXPANSION JOINT CO. LTD.
NANJING CHENGUANG AEROSPACE APPLYING TECHNOLOGY
NANJING JUNYE PROCESS EQUIPMENT CO.,LTD.
NANJING YANGZI PETROCHEMICAL MAINTENANCE &
NANTONG CIMC TANK EQUIPMENT CO., LTD.
NINGBO ENGINEERING COMPANY OF SINOPEC
NORMS ENGINEERING COMPANY LTD.
OFFSHORE OIL ENGINEERING CO., LTD.
PALL FILTER (BEIJING) CO., LTD.
QILU PETROCHEMICAL CORP. MACHINERY WORKS
SHANDONG NO.3 ELECTRIC POWER CONSTRUCTION COMPANY
SHANDONG QILU PETROCHEMICAL CONSTRUCTION CO., LTD.
SHANDONG XINHUA MEDICAL INSTRUMENT CO., LTD.
SHANGHAI BOILER WORKS, LTD.
SHANGHAI CARLISLE STAINLESS EQUIPMENT CO., LTD.
SHANGHAI HEZHONG CARRIER AIR-CONDITIONING EQUIPMENT CO., LTD.
SHANGHAI INSTALLATION ENGINEERING COMPANY, LTD.
SHANGHAI KANGBAO ELECTRICAL CO., LTD.
SHANGHAI MORIMATSU PRESSURE VESSEL CO., LTD.
SHANGHAI MORIMATSU PRESSURE VESSEL CO., LTD.
SHANGHAI NO. 1 CHEMICAL MACHINERY PLANT
SHANGHAI PETROCHEMICAL MACHINE MANUFACTURING COMPANY (SPMMC)
SHANGHAI POWER EQUIPMENT CO., LTD.
SHANGHAI SI FANG BOILER WORKS
SHANGHAI XIANDA PRESSURE VESSEL
SHANGHAI YANGYUAN PRESSURE VESSEL CO., LTD.
SHANGHAI YILENG CARRIER AIR-CONDITIONING
SHENZHEN JUTAL MACHINERY EQUIPMENT CO., LTD.
SHIJIAZHUANG DONGFANG PETRO-CHEMICAL
SICHUAN AIR SEPARATION PLANT (GROUP) CO., LTD
SICHUAN BOILER WORKS
SICHUAN SANZHOU SCMP NUCLEAR EQUIPMENT
SINOPEC NANJING CHEMICAL INDUSTRIES CO., LTD. CHEMICAL MACHINERY WORKS
SOUTHWEST CHEMICAL MACHINERY CO., LTD.
TELING AIR CONDITIONING SYSTEMS (JIANGSU) CO., LTD
THE BABCOCK & WILCOX BEIJING COMPANY LTD.
THE FOURTH CONSTRUCTION COMPANY OF SINOPEC
THE PETROCHEMICAL EQUIPMENT FACTORY OF CHINA
THE SECOND CONSTRUCTION COMPANY OF SINOPEC
THE THIRD CHEMICAL ENGINEERING CONSTRUCTION
TIANJIN ELECTRIC POWER CONSTRUCTION CORPORATION
TIANJIN PETROCHEMICAL MACHINERY MANUFACTURE
UNITED OFFSHORE CONSTRUCTION CO. CONHW
VALMET-XI‘AN PAPER MACHINERY CO., LTD.
WEIHAI CHEMICAL DEVICE CO., LTD.
WUHAN BOILER CO. LTD.
WUHAN KAIDI POWER EQUIPMENT CO., LTD.
WUHU JINDING BOILER CO. LTD.
WUXI GENERAL CHEMICAL EQUIPMENT PLANT
WUXI HEAT EXCHANGE EQUIPMENT CO., LTD.
WUXI HUAGUANG BOILER CO., LTD.
WUXI NANYANG CHEMICAL MACHINERY CO., LTD.
WUXI PETROCHEMICAL EQUIPMENT COMPANY LIMITED
XI‘AN NUCLEAR EQUIPMENT CO., LTD.
XINAO GROUP SHIJIAZHUANG CHEMICAL MACHINERY CO., LTD.
YANGZHOU TONGHUA SPECIAL VEHICLES CO., LTD.
YANTAI MOON CO., LTD.
YIXING HUAWEI CHEMICAL MACHINERY WORKS
YORK (WUXI) AIR CONDITIONING AND REFRIGERATION
YUEYANG BALING PETROCHEMICAL MACHINERY WORKS
ZHANG JIA GANG CHEMICAL MACHINERY CO. LTD.
ZHANGJIAGANG FURUI BOILER & PRESSURE VESSEL
ZHANGJIAGANG HAILU BOILER CO., LTD.
ZHANGJIAGANG HUALING CHEMICAL MACHINERY WORKS
ZHANGJIAGANG SANCTUM CHEMICAL MACHINERY CO., LTD.
ZHANGJIAGANG SHENGHUI CHEMICAL MACHINERY CO., LTD.
ZHEJIANG NAMAG EQUIPMENT MANUFACTURING COMPANY, LTD.
ZIBO TAIJI INDUSTRIAL ENAMEL CO., LTD.