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ASTM E147-61(2022)

Current Reaffirmation

Standard Specification for Apparatus for Microdetermination of Nitrogen by Kjeldahl Method

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1.1 This specification covers digestion and distillation apparatus used for the microdetermination of nitrogen by the Kjeldahl method, and modifications thereof at atmospheric pressure.

Note 1: This specification is based on those originally developed by the Committee on Microchemical Apparatus, Division of Analytical Chemistry, American Chemical Society.2

1.2 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.


This specification covers the design and dimensional requirements for the digestion and distillation apparatus used for the microdetermination of nitrogen by the Kjeldahl method, and modifications thereof at atmospheric pressure. This apparatus is comprised primarily of digestion flasks, micro Kjeldahl digestion rack, one-piece model distillation apparatus, and Pregl (Parnas-Wagner) type distillation apparatus.


SDO ASTM: ASTM International
Document Number E147
Publication Date Sept. 1, 2022
Language en - English
Page Count 7
Revision Level 61(2022)
Supercedes
Committee E41.01
Publish Date Document Id Type View
Sept. 1, 2022 E0147-61R22 Reaffirmation
Jan. 1, 2017 E0147-61R17 Reaffirmation
Dec. 1, 2011 E0147-61R11 Reaffirmation
Nov. 1, 2006 E0147-61R06 Reaffirmation
Sept. 18, 1961 E0147-61R01 Reaffirmation
Sept. 18, 1961 E0147-61R96 Reaffirmation