GB/T 13247-2019
Methods for sampling and testing the grain size of ferroalloys products (English Version)

Standard No.

GB/T 13247-2019

Language

Chinese, Available in English version

Release Date

2019

Published By

国家市场监督管理总局、中国国家标准化管理委员会

Latest

GB/T 13247-2019

Replace

GB/T 13247-1991

Scope

This standard specifies the equipment and tools for particle size inspection of ferroalloy products, the composition of samples, sampling, reduction, particle size inspection, test results and presentation, objection handling of screening results, and inspection reports. This standard applies to the sampling and testing of ferroalloy product grain size acceptance and arbitration.

GB/T 13247-2019 Referenced Document

• GB/T 28369 Ferroalloys.Experimental methods for the evaluation of the quality variation and methods for checking the precision of sampling
• GB/T 4010 Ferroallys sampling and preparation of samples for chemical analysis
• GB/T 6003.1 Test sieves—Technical requirements and testing—Part 1:Test sieves of metal wire cloth*， 2022-10-12 Update
• GB/T 8170 Rules of rounding off for numerical values & expression and judgement of limiting values

GB/T 13247-2019 history

• 2019 GB/T 13247-2019 Methods for sampling and testing the grain size of ferroalloys products
• 1991 GB/T 13247-1991 Ferroalloys-Sampling and testing methods for determination of grain Size