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STN 722041-15 (722041)
Chemical analysis of steel-making slag. Determination of phosphorus pentoxide content
STANDARD published on 1.8.1992
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The information about the standard:
Designation standards: STN 722041-15
Classification mark: 722041
Catalog number: 68320
Publication date standards: 1.8.1992
SKU: NS-502895
The number of pages: 4
Approximate weight : 12 g (0.03 lbs)
Country: Slovak technical standard
Category: Technical standards STN
We recommend simillar standard:!
ČSN 722041-15 (01.08.1992)The category - similar standards:
Chemical analysisMineral materials and productsMineral and ceramic materials and products
Annotation of standard text STN 722041-15 (722041):
Tato norma urcuje spektrofotometricke stanoveni oxidu fosforecneho ve forme redukovaneho fosforecnano-molybdenanoveho komplexu. Stanoveni je zalozeno na mereni intenzity modreho zbarveni, ziskaneho redukci fosforecnano-molybdenoveho komplexu kyselinou askorbovou v pritomnosti antimonite soli. Pripadny rusivy vliv arsenu se odstrani jeho oddelenim ve forme bromidu odparenim roztoku s kyselinou bromovodikovou a chloristou.
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