D59 其他非金属矿 标准查询与下载

ISO 2367:1972 天然和人造冰晶石 铝含量的测定 8-羟基喹啉重量法

The method can be applied provided the Fe203 content does not exceed 0,15 . It can also be applied to products with molar ratio of NaF to AlF3 between approximately 3 and 1,7. The principle consists in dissolution of a test portion by acid fusion using potassium pyrosulphate and recovery by hydrochloric acid. Separation of the mixture by precipitation of aluminium, with ammonium benzoate , in an acetic reducing medium. Dissolution of the precipitate and reprecipitation as aluminium tri(quinolin-8-oxide) in an acetic buffer medium. Filtration, washing, drying of the precipitate at a temperature of 130 鳦 and weighing.

Cryolite (natural and artificial); Determination of aluminium content; 8- Hydroxyquinoline gravimetric method

ISO 2362:1972 工业用氟化铝 氟含量的测定 威拉德-温特尔的改进法

Aluminium fluoride for industrial use; Determination of fluorine content; Modified Willard-Winter method

YS/T 345-1994 硃砂分析方法

Cinnabar analysis method