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ISO 1389-7:1977

Phthalic anhydride for industrial use — Methods of test — Part 7: Determination of maleic anhydride content — Polarographic method
1. 2. 1977.
95.99   Povučen   27. 5. 2002.

Опште информације

95.99     27. 5. 2002.

ISO

ISO/TC 47

Međunarodni standard

71.080.50  

francuski   engleski  

Kupovina

Povučen

Jezik na kome želite da primite dokument.

Apstrakt

The principle consists in the dissolution of a test portion in acetone, removal of 1,4-naphthoquinone present in the solution by extraction with benzene. Polarographic measurement of the aqueous solution and determination of the mass of maleic anhydride by means of the calibration graph. - ISO 1389, Parts 1 to 11, replace ISO Recommendation R 1389-1970.

Životni ciklus

TRENUTNO

POVUČEN
ISO 1389-7:1977
95.99 Povučen
27. 5. 2002.

Nacionalna preuzimanja

SRPS H.B8.412:1985  
ISS

Anhidrid ftalne kiseline, tehnički - Određivanje sadržaja anhidrida maleinske kiseline - Polarografska metoda

95.99   Povučen

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