Chemical analysis of silicon-carbide-containing raw materials and refractory products - Determination of nitrogen, oxygen and metallic and oxidic constituents1 Scope This part of ISO 21068 specifies methods for the determination of total nitrogen and nitrogen calculated as silicon nitride, total oxygen, and free metallic and oxidic components in silicon carbide raw materials and refractory products. It applies only to silicon carbide materials that are not bonded with nitrogen. Nitride bonded silicon carbide refractories are covered in EN 12698 1.

In drafting BS 5904 the continued stability of RTL/2 has been a prime objective

BS EN 50117-1 simplifies the transmission of data through a transmission line or radio frequency signal and makes the line attenuation free for better transmission of frequency

Contents of BS EN ISO 3386-2:

BS EN 506 establishes general characteristics

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What is BS 5766-7 - Aflatoxin B1 in animal feeds about

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