铬矿石和铬精矿铬含量的测定 滴定法
Chromium ores and concentrates Determination of chromium content-Titrimetric method
Chromium ores and concentrates Determination of chromium content-Titrimetric method
Manganese and chromium ores-Experimental methods forchecking the bias of sampling and sample preparation
Manganese and chromium ores-Experimental methods for evaluation ofquality variation and methods for checking the precision of sampling
Iron ores for shaft direct-reduction feedstocksDetermination of the low temperature reduction-disintegrationindex and degree of metallization
Iron ores for shaft direct-reduction feedstocks-Determination of thereducibility index , final degree of reduction and degree of metallization
Iron ore pellets for shaft direet-reduction feedstocksDetermination of the clustering index
Direct reduced iron and hot briquetted ironSampling and sample preparation
Environmental testing for electrie and electronic products-Part 2:Test methods-Test Z/ABMFh:Combined temperature(cold and heat)/low air pressure/vibration(random)
Environmental testing for electric and electronic productsPart 2:Test methods-Tests A:Cold
Environmental testing for electric and electronic products Part 2:Test methods-Test M: Low air pressure