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 label.
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1000 mg/L nitrite in water, stabilized with NaOH to pH 10-11, prepared with high purity NaNO2, water and NaOH
TraceCERT is a registered trademark of Sigma-Aldrich Co. LLC