This standard specifies the structure and glass of observation windows (hereinafter referred to as observation windows) used in pressure vessels with a design pressure of less than 30 MPa.
JIS B 8286:2005 Referenced Document
JIS B 0621 Definitions and designations of geometrical deviations
JIS B 8265 Construction of pressure vessel -- General principles*， 2017-11-25 Update
JIS K 6253 Rubber, vulcanized or thermoplastic -- Determination of hardness*， 2006-12-20 Update
JIS R 3102 Testing method for average linear thermal expansion of glass