This standard specifies a method for measuring the crushing strength of individual fine ceramic spherical grains of several tens to hundreds of micrometers that break brittle when the sphericity of the test grains is within 10%. stipulate the following.
JIS R 1639-5:2007 Referenced Document
JIS B 0155 Industrial-process measurement and control -- Terms and definitions
JIS B 7611-1 Nonautomatic weighing instruments -- Metrological and technical requirements and Tests -- Part 1: General measuring instruments
JIS B 7721 Tension/compression testing machines -- Calibration and verification of the force-measuring system*， 2018-01-22 Update
JIS R 1600 Glossary of terms relating to fine ceramics*， 2011-12-20 Update
JIS R 1625 Weibull statistics of strength data for fine ceramics*， 2010-03-23 Update
JIS R 1639-5:2007 history
2007JIS R 1639-5:2007 Test methods of properties of fine ceramic granules Part 5: Compressive strength of a single granule