ASTM E147
Standard Specification for Apparatus for Microdetermination of Nitrogen by Kjeldahl Method
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About This Item
ASTM E147 is the ASTM standard specification for apparatus used in microdetermination of nitrogen by the Kjeldahl method. It identifies the equipment expectations for a small-scale nitrogen determination setup, helping users work with a defined apparatus structure rather than an improvised arrangement. That matters because consistent apparatus can support more reliable measurements, better repeatability, and clearer communication between laboratories, suppliers, and quality teams using Kjeldahl-based nitrogen testing.
ASTM E147 standard overview
The Standard Specification for Apparatus for Microdetermination of Nitrogen by Kjeldahl Method focuses on the equipment used to carry out micro-scale Kjeldahl nitrogen determinations. As an ASTM technical document, ASTM E147 is intended to guide the design or selection of apparatus so the test setup is suitable for the intended analytical procedure. For users, the standard helps define a common reference for apparatus characteristics, supporting more consistent laboratory practice and procurement decisions.
Where is ASTM E147 used?
This standard is commonly used in laboratories that perform Kjeldahl nitrogen determinations at micro scale, where apparatus selection and setup affect the usability of the method. It is relevant when specifying or evaluating equipment for analytical workflows that measure nitrogen through the Kjeldahl technique. ASTM E147 is useful for labs, testing services, and equipment suppliers that need a shared basis for the apparatus used in nitrogen microdetermination.
Practical importance of ASTM E147
ASTM E147 helps support consistency in apparatus selection for nitrogen testing, which can reduce variation caused by using equipment that is not aligned with the intended method. In practice, that supports compliance efforts, quality control, and product evaluation where dependable analytical results are important. It also gives purchasers and laboratory managers a clearer framework for comparing apparatus options and maintaining a more controlled test environment.
- Microdetermination of nitrogen
- Kjeldahl method apparatus
- Equipment specification reference
- Laboratory testing consistency
- Procurement and compliance support
- Publication Date: 2022-09-20
- Publisher: ASTM
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