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Terms of concrete admixtures
Scope of Application：
This part of GB/T 6730 specifies a chromium content testing method by the diphenyl carbazide spectrophotometric method.
This method is applicable to natural iron ores, concentrates, sinters and pellets. The concentration range in mass fraction is from 0.010% to 0.500%.
Basic information
Standard No：GB/T 6730.30-2017
Standard Name： 铁矿石 铬含量的测定 二苯基碳酰二肼分光光度法
English Name：Iron ores—Determination of chromium content—Diphenyl carbazide spectrophotometric method
Standard Status：In force
Release Date：1986-08-19
Effective Date：2018-06-01
Publishing language: Simplified Chinese
Publication Information
Number of pages：12
Number of words：14 K
Other Information
Technical Committees：National Iron Ore and Direct Reduced Iron Standardization Technical Committee (SAC/TC 317)
Proposed Unit：China Iron and Steel Association
Application Dept：State Administration of Quality Supervision, Inspection and Quarantine，State Standardization Administration
