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The principle consists in the development of a pink colour by heating a test portion containing 1,4-naphtoquinone with tin(II) chloride, and comparison of the colour produced with a series of prepared reference colours. - ISO 1389, Parts 1 to 11, replace ISO Recommendation R 1389-1970.
ПОВУЧЕН
ISO 1389-10:1977
95.99
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27. 5. 2002.
Anhidrid ftalne kiseline, tehnički - Određivanje sadržaja 1,4-naftohinona - Kolorimetrijska metoda
95.99 Повучен