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Key Documents

TKN1000

Supelco

Kjeldahl Nitrogen, Total (TKN) 1000mg/L Calibration Standard

certified reference material

Synonym(s):

TKN Calibration Standard

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About This Item

UNSPSC Code:
41116107
NACRES:
NA.24

grade

certified reference material

CofA

current certificate can be downloaded

manufacturer/tradename

RTC TKN1000-100

concentration

in H2O

application(s)

environmental

format

matrix material

storage temp.

2-8°C

Related Categories

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.

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)

Other Notes

Values of analytes vary lot to lot. Some lots may not contain all analytes.

Storage Class Code

10 - Combustible liquids

WGK

nwg

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
LRAD8678
LRAD7960
LRAD7041
LRAD7040
LRAD5404

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If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

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Articles

Water for Kjeldahl Analysis

Learn how water impurities can impact the Kjeldahl nitrogen method. Get recommendations for accurate Kjeldahl analysis and total Kjeldahl nitrogen (TKN) tests. Select the optimal water purification system.

Water for Kjeldahl Analysis

Learn how water impurities can impact the Kjeldahl nitrogen method. Get recommendations for accurate Kjeldahl analysis and total Kjeldahl nitrogen (TKN) tests. Select the optimal water purification system.

Water for Kjeldahl Analysis

Learn how water impurities can impact the Kjeldahl nitrogen method. Get recommendations for accurate Kjeldahl analysis and total Kjeldahl nitrogen (TKN) tests. Select the optimal water purification system.

Water for Kjeldahl Analysis

Learn how water impurities can impact the Kjeldahl nitrogen method. Get recommendations for accurate Kjeldahl analysis and total Kjeldahl nitrogen (TKN) tests. Select the optimal water purification system.

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