Official copies of the JIS B 7420 standard in PDF format can be obtained from recognized standards distributors: JIS-B-7420-1997-1.pdf - PhysicsNorm
According to the JIS B 7420 summary on PhysicsNorm , the standard utilizes a simple pass/fail system: jis b 7420 pdf
However, I can offer general guidance on what typically covers, based on publicly available metadata about the standard: Official copies of the JIS B 7420 standard
Disclaimer: Prices, resellers, and standard editions are subject to change. Always verify the exact revision number on the official JSA website before purchase. jis b 7420 pdf