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ISO 5790:1979廢止

Inorganic chemical products for industrial use - General method for determination of chloride content - Mercurimetric method

出版：International Organization for Standardization

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基本信息

標準編號： ISO 5790:1979

發布時間：1979/7/1 0:00:00

標準類別：Standard

出版單位：International Organization for Standardization

標準頁數：9

標準簡介

Includes a method enabling quantities of chloride exceeding 1 mg in the test portion to be determined with an absolute error of 0,2 to 0,5 mg, according to the concentration of the standard volumetric solution used. The principle of determination is based on the conversion of chloride ions into weakly ionized mercury(II) chloride, using highly ionized standard volumetric mercury(II) nitrate solution, and detection of the end-point by reaction of the excess of mercury(II) nitrate with 1,5-diphenyl-carbazone used as an indicator, by the appearance of a violet colour.

等同采用的國際標準

BS 6075-7(1981) : 1981 - Similar to

NBN T 02 204 : 1980 - Identical

UNE 55707 : 1984 - Identical

BS 6070-5(1981) : 1981 - Identical

BS 6075-2(1981) : 1981 - Similar to

BS 6075-8(1981) : 1981 - Similar to

BS 6070-2(1981) : 1981 - Identical

NFT 20 056 : 81 FD - Identical

NBN T 02 204 : 1980 - Identical

BS 6070-2(1981) : 1981 - Identical

BS 6070-5(1981) : 1981 - Identical