China National Standards

China content—Phosphorus GB Standards List


  •  China "content—Phosphorus" GB Standards List:
  • Standard  Code Standard Title Standard Class Order
    GB/T 7731.4-2021 Ferrotungsten—Determination of phosphorus content—Phosphorus molybdenum blue spectrophotometric method
    钨铁 磷含量的测定 磷钼蓝分光光度法
    China National Standards
    content—Phosphorus

    English PDF
    GB/T 14849.7-2015 Methods for chemical analysis of silicon metal—Part 7: Determination of phosphorus content—Phosphorus molybdenum blue spectrophotometry
    工业硅化学分析方法 第7部分:磷含量的测定 磷钼蓝分光光度法
    China National Standards
    content—Phosphorus

    English PDF

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