This Japanese Industrial Standard specifies among round shaped vapour pressure type indicating thermometers with a single concentric pointer, those used in temperatures of -30 to 200 centigrade degrees, hereinafter referred to as the "thermometers". The thermometer consists of an indicating part and a pressure part in which a Bourdon tube and a temperature sensitive cylinder are connected with each other by a conduit tube and which is filled with a volatile liquid.

JIS B 7529:2017