GB/T 4236-2016: Translated English of Chinese Standard. (GBT 4236-2016, GB/T4236-2016, GBT4236-2016): Steel Examination by Sulphur Print (Baumann method)
https://www.chinesestandard.net, 12. 7. 2019 - 10 strán (strany)
This Standard stipulates the principle, objective, sample preparation, materials and reagents, test procedure, test safety, test result and test report of steel examination by Sulphur print (Baumann method). This Standard is applicable to steel, which has more than 0.0050% Sulphur content. It may also be applicable to cast iron.
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Sampling and Sample Preparation
Materials and Reagents
Appendix A informative Sketch Maps of Sulphur Print Images of Steel
Acetic Acid Acid or Acetic acid solution added please refer adopted applicable blurred images Citric Acid Concentration of Reagents content in steel cutting depth cutting tools degree of roughness document Examination by Sulphur examined surface Figure A.1 fixate the photographic fixing solution GB/T hydrogen sulfide images manifest gradually Images of Steel immerse photographic papers inclusions Iron and Steel maps of Sulphur mass fraction Materials and Reagents modified please refer Positive Segregation previously immersed Principle and Objective Print Baumann method print images manifest processing Recommended Type refer to Chapter refer to Figure refer to Table result of Sulphur sample gradually Sample Preparation sample surface sensitive emulsion sketch map specific date Spots on Sulphur Standard steel contain Steel Examination steel’s Sulphur content Sulfuric Acid Sulphur Print Baumann Sulphur print images Sulphur print test surface roughness Test Report Test Result Test Safety test surface trigger type and concentration water to rinse