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<正>制定机构:International database for certified reference material地址:Central Secretariat c/o Federal Institute for Materials Research and Testing RichardWillstaetter-Str.11 12489 Berlin Germany电话:+49 30 8104 5862传真:+49 30 8104 5577电子邮件:comar@bam.de网址:http://www.comar.bam.de文种:英文