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Homepage>BS Standards>71 CHEMICAL TECHNOLOGY>71.060 Inorganic chemicals>71.060.40 Bases>BS 4651-4:1988 Ammonia solution Method for determination of residue after heating at 850°C
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immediate downloadReleased: 1988-08-31
BS 4651-4:1988 Ammonia solution Method for determination of residue after heating at 850°C

BS 4651-4:1988

Ammonia solution Method for determination of residue after heating at 850°C

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Standard number:BS 4651-4:1988
Pages:8
Released:1988-08-31
ISBN:0 580 16538 8
Status:Standard
DESCRIPTION

BS 4651-4:1988


This standard BS 4651-4:1988 Ammonia solution is classified in these ICS categories:
  • 71.060.40 Bases

This Part of BS 4651 describes a gravimetric method for the determination of the residue after heating at 850 °C of ammonia solution for industrial use.

The method is applicable to solutions containing 25.0 % to 35.0 % (m/m) ammonia and with a residue after heating at 850 °C of not lower than 3 mg/kg.

NOTE The publications referred to in this standard are listed on the inside back cover.


Applicable to ammonia solutions of concentrations within the range 25% to 35%, by mass, and with a residue after heating of not less than 3 mg/kg.