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Standard ČSN 441656 18.5.1989 preview

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ČSN 441656 (441656)

Antimony ores and concentrates.Determination of carbon content



STANDARD published on 18.5.1989


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The information about the standard:

Designation standards: ČSN 441656
Classification mark: 441656
Catalog number: 28304
Publication date standards: 18.5.1989
SKU: NS-128765
The number of pages: 4
Approximate weight : 12 g (0.03 lbs)
Country: Czech technical standard
Category: Technical standards ČSN

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The category - similar standards:

Metalliferous minerals

Annotation of standard text ČSN 441656 (441656):

Norma platí pro chemický rozbor antimonových rud a koncentrátů a určuje stanovení uhlíku metodou vážkovou. Při provádění rozboru musí být dodržena všechna ustanovení podle ČSN 44 1701. Podstata metody: Vzorek se spaluje za vysoké teploty v proudu kyslíku a oxid uhličitý se pohlcuje natronovým vápnem. Postup při provádění normalizované zkoušky je podrobně popsán. ČSN 44 1656 byla schválena 18.5.1989 a nabyla účinnosti od 1.4.1990. Nahradila část 17 ČSN 44 1641 z 30.5.1974 a spolu s ČSN 44 1701, ČSN 44 1641 až ČSN 44 1655, ČSN 44 1657 až ČSN 44 1659 ji nahradila v celém rozsahu

Preview of the standard ČSN 441656 (441656)

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