Not available outside of the UK & Ireland.
Application
The Total Kjeldahl Nitrogen (TKN) method is used to determine the sum of organic nitrogen, ammonia (NH3) and ammonium (NH4+) contents in the chemical analysis of soil, water and wastewater.
Features and Benefits
Provided as 100-mL and 500-mL whole-volume samples Solvent/Matrix: DI Water Traceable to NIST standard reference materials (SRM′s)
General description
This Certified Reference Material (CRM) is a high-quality wet chemistry standard, produced and certified following ISO 17034 and ISO/IEC 17025 double accreditation—the highest quality system for reference material producers. All information regarding the use of this CRM can be found on the certificate of analysis.
Other Notes
Values of analytes vary lot to lot. Some lots may not contain all analytes.
This product has met the following criteria: