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ISO 2223:1972

Formaldehyde solutions for industrial use — Limit test for heavy metals (excluding iron)
1. 11. 1972.
95.99   Povučen   27. 5. 2002.

Опште информације

95.99     27. 5. 2002.

ISO

ISO/TC 47

Međunarodni standard

71.080.80  

francuski   engleski  

Kupovina

Povučen

Jezik na kome želite da primite dokument.

Apstrakt

The method detects only the heavy metals present in non-complex form, the sulphides of which are precipitated in acid solution. The method is not specific for any one heavy metal. The principle consists in conversion of heavy metal, such as lead and copper, in acid solution to their sulphides, and comparison of the colour produced with that given by an aliquot volume of standard lead solution treated with hydrogen sulphide in the same way.

Životni ciklus

TRENUTNO

POVUČEN
ISO 2223:1972
95.99 Povučen
27. 5. 2002.

Nacionalna preuzimanja

SRPS H.B8.277:1983  
ISS

Formalin, tehnički - Određivanje sadržaja teških metala (kao Pb) - Kolorimetrijska metoda

95.99   Povučen

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