ISO 1552:1976
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ISO 2121:1972
ISO 3425:1975
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ISO 3705:1976
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ISO 3704:1976
Sulphur for industrial use — Determination of acidity — Titrimetric method
Automatically translated name:
Sulphur for industrial use -- Determination of acidity -- Titrimetric method
STANDARD published on 1.9.1976
The information about the standard:
Designation standards: ISO 3704:1976
Publication date standards: 1.9.1976
SKU: NS-431492
The number of pages: 2
Approximate weight : 6 g (0.01 lbs)
Country: International technical standard
Category: Technical standards ISO
The category - similar standards:
Annotation of standard text ISO 3704:1976 :
Description / Abstract: Applicable to products having acidities, expressed as H2 SO4 , equal to or more than 0.01 % (m/m). Describes the extraction of acidic substances with a mixture of water and propan-2-ol (isopropyl alcohol). Titration of the extract with standard volumetric sodium hydroxide solution in the presence of phenolphthalein as indicator. The preparation of the sample from the laboratory sample is carried out by grinding a sufficient quantity of the undried material until it passes through a sieve of nominal mesh of 250 m.
Similar standards:
1.4.1976
1.6.1972
1.7.1972
1.10.1975
1.7.1975
1.9.1976
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