SN/T 3012-2011 (English Version) PDF

Scope: Warning: Personnel using this standard should have practical experience in formal laboratory work. This standard does not point out all possible safety issues. Users are responsible for taking appropriate safety and health measures and ensuring compliance with the conditions stipulated in relevant national laws and regulations. This standard specifies a method for determining the content of tungsten trioxide (WO) in tungsten concentrate using wavelength dispersive X-ray fluorescence spectrometry. This standard is applicable to tungsten concentrate and also to the determination of WO content in other tungsten ores. Determination range (mass fraction): 17% ~ 70%.

SN/T 3012-2011 Referenced Document

GB/T 16597 Analytical methods of metallurgical products—General rule for X-ray fluorescence spectrometric methods*， 2019-06-04 Update
GB/T 4414 Methods of sampling and sample preparation of tungsten concentrates in bags*， 2013-11-27 Update
GB/T 6379.2 Accuracy(trueness and precision)of measurement methods and results-Part 2:Basic method for the determination of repeatability and reproducibility of a standard measurement method
GB/T 6682 Water for analytical laboratory use.Specification and test methods

2011 SN/T 3012-2011 Determination of tungsten trioxide in tungsten ores.X-ray fluorescence spectrometry