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一般描述
This certified reference material (CRM) is produced and certified in accordance with ISO/IEC 17025 and ISO 17034. This CRM is traceable to SI unit kg and measured against primary material from an NMI, e.g. NIST.
Certified content incl. uncertainty and expiry date are given on the certificate.
Download your certificate at: http://www.sigma-aldrich.com.
Certified content incl. uncertainty and expiry date are given on the certificate.
Download your certificate at: http://www.sigma-aldrich.com.
联系
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分析说明
1000 mg/L N as NH4+ in water, prepared with high purity NH4Cl and water
法律信息
TraceCERT is a registered trademark of Merck KGaA, Darmstadt, Germany
WGK
nwg
闪点(°F)
Not applicable
闪点(°C)
Not applicable
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