Ammonium Nitrogen Standard for IC – 100 mL
1000 mg/L N as NH₄⁺ in Water (nominal concentration), TraceCERT®

Identifiers
• UNSPSC Code: 41116107
• NACRES: NA.24
• Volume: 100 mL
• Vendor: Millipore Sigma
• Brand: TraceCERT®

ISO-certified Ammonium Nitrogen CRM (1000 mg/L N as NH₄⁺ in water) for ion chromatography. Produced under ISO/IEC 17025 and 17034 with traceability to NIST primary material.

Certified Composition
• Analyte: Nitrogen (as NH₄⁺)
• Concentration: 1000 mg/L N (nominal)
• Matrix: Water (H₂O)
• Preparation: Formulated using high-purity NH₄Cl and ultrapure water
• Form: Aqueous solution
• Size: 100 mL
This certified reference material (CRM) is produced and certified in accordance with ISO/IEC 17025 and ISO 17034 standards. Each lot is traceable to the SI unit kg and measured against a primary material from a national metrology institute (NMI) such as NIST.
The certified content, uncertainty, and expiry date are listed on the accompanying certificate, which can be downloaded at www.sigmaaldrich.com.
This material provides reliable calibration and quality control performance for ion chromatography (IC) and related analytical applications.
Certification & Traceability
• Produced and certified in accordance with ISO/IEC 17025 and ISO 17034
• Traceable to SI unit kg via NMI (e.g., NIST)
• Certificate of Analysis available for download
• Provides known measurement uncertainty for laboratory QA/QC
Intended Use
For calibration, validation, and quality control of analytical instruments and methods in environmental, food, and industrial laboratories performing ion chromatography (IC) or related nitrogen analyses.
Legal Information
TraceCERT® is a registered trademark of Merck KGaA, Darmstadt, Germany.