Shfuqizuar
ISO 11723:2004 specifies a method using Eschka's mixture during ashing, extraction of the ash residue with acid, and hydride generation atomic absorption spectrometry or hydride generation atomic fluorescence spectrometry, for the determination of arsenic and selenium in coal and coke ash.
WITHDRAWN
ISO 11723:2004
95.99
Withdrawal of Standard
18 nën 2016
WITHDRAWN
ISO 11723:2016
Lëndë djegëse të ngurta - Përcaktimi I arsenikut dhe seleniumit - Përzierja Eschka dhe metoda hibride e prodhimit
60.60 Standard published