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Standard ČSN 651055 29.4.1991 preview

ČSN 651055 (651055)

Aluminum oxide. Determination of zinc oxide content



STANDARD published on 29.4.1991


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The information about the standard:

Designation standards: ČSN 651055
Classification mark: 651055
Catalog number: 29949
Publication date standards: 29.4.1991
SKU: NS-132096
The number of pages: 12
Approximate weight : 36 g (0.08 lbs)
Country: Czech technical standard
Category: Technical standards ČSN

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The category - similar standards:

OxidesMaterials for aluminium production

Annotation of standard text ČSN 651055 (651055):

Norma platí pro oxid hlinitý používaný především pro výrobu hliníku a určuje pro stanovení oxidu zinečnatého metody atomové absorpční spektrometrie - pro hmotnostní zlomek oxidu zinečnatého od 0,0002 do 0,05 %, fotometrickou - pro hmotnostní zlomek oxidu zinečnatého od 0,0005 do 0.05 %, polarografickou - pro hmotnostní zlomek oxidu zinečnatého od 0,005 do 0,03 %. V této normě jsou zapracovány údaje z ISO 2O71:1976. Při provádění rozboru musí být dodržena veškerá ustanovení podle ČSN 65 1041. Metoda je založena na kyselinovém nebo alkalickém rozkladu vzorku a změření atomové absorpce zinku v plameni acetylen - vzduch při vlnové délce 213,8 nm. ČSN 65 1055 byla schválena 29.4.1991 a nabyla účinnosti od 1.1.1992. Nahradila ČSN 65 1055 ze 4.5.1981

Similar standards:

ČSN 651046ČSN 651046

25.4.1991

ČSN 651047ČSN 651047

25.4.1991

ČSN 651048ČSN 651048

25.4.1991

ČSN 651049ČSN 651049

25.4.1991

ČSN 651052ČSN 651052

25.4.1991

ČSN 651053ČSN 651053

25.4.1991

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