JIS Z 4005 Medical electrical equipment -- Glossary of defined terms*, 2012-03-01 Update
JIS Z 4511 X and gamma reference radiation for calibrating dosemeters and doserate meters and for determining their response as a function of photon energy*, 2018-07-20 Update
JIS Z 4501:2011 history
2011JIS Z 4501:2011 Testing method of lead equivalent for X-ray protective devices
1988JIS Z 4501:1988 Testing method of lead equivalent for X-ray protective devices