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BSI - BS 4258-3

Methods of Test for Phosphoric Acid (Orthophosphoric Acid) for Industrial Use Part 3: Determination of Sulphate Content

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Organization: BSI
Publication Date: 29 September 1989
Status: active
Page Count: 8
ICS Code (Acids): 71.060.30
scope:

Applicable to sulphate contents between 1 and 4000 mg/kg.

Document History

BS 4258-3
September 29, 1989
Methods of Test for Phosphoric Acid (Orthophosphoric Acid) for Industrial Use Part 3: Determination of Sulphate Content
Applicable to sulphate contents between 1 and 4000 mg/kg.
BS 4258-3
September 30, 1975
Methods of test for phosphoric acid (orthophosphoric acid) for industrial use. Determination of sulphate content
Reduction of the sulphate in a test portion to sulphide, absorption of the evolved hydrogen sulphide in acetone and sodium hydroxide solution and titration with mercury (II) acetate using dithizone...

References

This document references:
BS 4258-12 - Methods of Test for Phosphoric Acid (Orthophosphoric Acid) for Industrial Use - Part 12: Guide to Sampling Techniques
Published by BSI on November 30, 1982
Procedures and precautions for taking, preparing and storing samples for assessing the quality of bulk deliveries. Applicable to ortho- and poly-phosphoric acids prepared by thermal and wet...
This document references:
ISO 2997 - Phosphoric Acid for Industrial Use - Determination of Sulphate Content - Method by Reduction and Titrimetry
Published by ISO on November 1, 1974
A description is not available for this item.
This document references:
BS 4258-12 - Methods of Test for Phosphoric Acid (Orthophosphoric Acid) for Industrial Use - Part 12: Guide to Sampling Techniques
Published by BSI on November 30, 1982
Procedures and precautions for taking, preparing and storing samples for assessing the quality of bulk deliveries. Applicable to ortho- and poly-phosphoric acids prepared by thermal and wet...
This document references:
BS 6337-1 - General Methods of Chemical Analysis Part 1: Method for Determination of Traces of Sulphur Compounds by Reduction and Titrimetry
Published by BSI on January 31, 1983
Applicable to amounts of sulphate between 4.5 and 450 µg either in solution or in the test portion. The sulphate can be present as such or can be produced by suitable pre-treatment.
This document is referenced by:
BS 4258-7 - Methods of Test for Phosphoric Acid (Orthophosphoric Acid) for Industrial Use — Part 7: Determination of Total Phosphorus (V) Oxide Content: Quinoline Phosphomolybdate Gravimetric Method
Published by BSI on January 31, 1978
A description is not available for this item.
This document is referenced by:
BS 4258-13 - Methods of Test for Phosphoric Acid (Orthophosphoric Acid) for Industrial Use — Part 13: Determination of Soluble Sulphate Content (Potentiometric Method)
Published by BSI on July 31, 1990
Applicable to products having sulphate contents of not less than 0.4% by mass.
This document is referenced by:
DEF STAN 68-283 - Phosphoric Acid De-Rusting Solution, Inhibited
Published by MODUK on October 23, 1998
This Defence Standard specifies the requirements for an inhibited solution of phosphoric acid for use in accordance with Defence Standard 03-2, Cleaning and Preparation of Metal Surfaces.
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