This standard specifies the performance requirements, test methods and judgment rules for elastic pressure instruments to ensure safe use. This standard applies to devices that use spring tubes (including spiral spring tubes, coil spring tubes and C-shaped tubes), diaphragms, diaphragms and bellows as pressure-sensing elements to mechanically sense pressure and use a pointer to indicate its value on a dial. pressure gauge.
JB 8897-1999 history
1999JB 8897-1999 The general safety regulations of elasticty pressure gauge