GB/T 9984.6-1988
Determination of Industrial Sodium Iron Tripolyphosphate Content 2,2'-Bipyridyl Spectrophotometric Method (English Version)

Standard No.
GB/T 9984.6-1988
Language
Chinese, Available in English version
Release Date
1988
Published By
全国标准信息公共服务平台
Status
 2004-09
Replace By
GB/T 9984.6-2004
Latest
GB/T 9984-2008

GB/T 9984.6-1988 history

  • 2008 GB/T 9984-2008 Test methods for industrial sodium tripolyphosphate
  • 2004 GB/T 9984.6-2004 Sodium tripolyphosphate for industrial use---Determination of iron content---2,2'-bipyridyl spectrophotometric method
  • 1988 GB/T 9984.6-1988 Determination of Industrial Sodium Iron Tripolyphosphate Content 2,2'-Bipyridyl Spectrophotometric Method

GB/T 9984.6-1988 -All Parts

GB/T 9984.1-2004 The measurement of whiteness for industrial sodium tripolyphosphate GB/T 9984.10-2004 Sodium tripolyphosphate for industrial use (including foodstuffs)-Determination of oxides of nitrogen content-3,4-Xylenol spectrophotometric method GB/T 9984.11-2004 Sodium tripolyphosphate for industrial use-Determination of I type content GB/T 9984.2-2004 Sodium tripolyphosphate for industrial use-Determination of total phosphorus(v)oxide content-Quinoline phosphomolybdate gravimetric method GB/T 9984.3-2004 Sodium tripolyphosphate for industrial use-Separation by ion exchange chromatography and determination of the different phosphate forms GB/T 9984.4-2004 Sodium tripolyphosphate for industrial use-Determination of matter insoluble in water GB/T 9984.5-2004 Sodium tripolyphosphate and Sodium pyrophosphate for industrial use-Determination of loss on ignition GB/T 9984.6-2004 Sodium tripolyphosphate for industrial use---Determination of iron content---2,2'-bipyridyl spectrophotometric method GB/T 9984.7-2004 Sodium tripolyphosphate for industrial use-Measurement of pH-Potentiometric method GB/T 9984.8-2004 Sodium tripolyphosphate for industrial use-Determination of particle size GB/T 9984.9-2004 Industrial sodium tripolyphosphate-Determination of apparent density-Method by measuring the mass of a given volume


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