GB/T 15076.7-2020 Active National standards

GB/T 15076.7-2020 Methods for chemical analysis of tantalum and niobium—Part 7:Determination of phospherus content in niobium—4-Formyloxy-pentyl ketone-[2]extraction separation phosphomolybdate blue spectrophotometry and inductively coupled plasma atomic emission spectrometry

Publish Date: 2020-03-06 Implement Date: 2021-02-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: GB/T 15076.7-2020

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Analysis methods for rare metals and their alloys

ICS Name: Other non-ferrous metals and their alloys

Publish Date: 2020-03-06

Implement Date: 2021-02-01

Pages: 8 pages

Scope

This part of GB/T 15076 specifies the method for determining the phosphorus content in niobium.
This part is applicable to the determination of phosphorus content in niobium and niobium hydroxide, and niobium carbide. Method I: 4-methyl-pentanone-[2] extraction and separation of phosphorus, and determination by molybdenum blue spectrophotometry. The measurement range is 0.001% to 0.050%; Method II: inductively coupled plasma atomic emission spectrometry. The measurement range is 0.001% to 0.080%. When the measurement ranges of Method I and Method II overlap, Method I is the arbitration analysis method.