Before use, the samples were placed in weighing bottles and left to stand for 7 days in a dryholder containing anhydrous magnesium perchlorate before weighing.The sample mass must be corrected for buoyancy.The sample density was 1.35 g / cm3.
规格
规格或纯度
≥99.89%
英文名称
Standard reference material for purity (alkali content) of trihydroxymethyl aminomethane