This standard is. This document mainly specifies the method for testing the oxidation resistance of non-oxide fine ceramic sintered bodies such as silicon nitride, sialon, and silicon carbide at high temperatures.
JIS R 1609:2003 history
2003JIS R 1609:2003 Testing methods for oxidation resistance of non-oxide fine ceramics
1990JIS R 1609:1990 Testing methods for oxidation resistance of non-oxide high performance ceramics