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  4. Standard "BS 4427-6:1974"
Standard BS 4427-6:1974 7.6.1974 preview

BS 4427-6:1974

Methods of test for sodium tripolyphosphate (pentasodium triphosphate) and sodium pyrophosphate (tetrasodium pyrophosphate) for industrial use. Estimation of pyrophosphate content of sodium pyrophosphate.



STANDARD published on 7.6.1974


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The information about the standard:

Designation standards: BS 4427-6:1974
Publication date standards: 7.6.1974
SKU: NS-67611
The number of pages: 8
Approximate weight : 24 g (0.05 lbs)
Country: British technical standard
Category: Technical standards BS

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Annotation of standard text BS 4427-6:1974 :

Potentiometric method after conversion of the tetrasodium pyrophosphate to disodium dihydrogen pyrophosphate and precipitation of the pyrophosphate with liberation of sulphuric acid. Applicable to products containing at least 90 per cent of tetrasodium pyrophosphate and in the absence of more condensed forms of phosphate. Status: Confirmed

Similar standards:

BS 4993-1:1974BS 4993-1:1974

28.2.1974

BS 4993-10:1983BS 4993-10:1983

31.5.1983

BS 4993-2:1974BS 4993-2:1974

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BS 4993-3:1974BS 4993-3:1974

28.2.1974

BS 4993-6:1980BS 4993-6:1980

31.12.1980

BS 4993-8:1980BS 4993-8:1980

31.12.1980

Latest update: 2025-01-21 (Number of items: 2 220 867)
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