This standard specifies the technical requirements, test acceptance requirements, marking, packaging, transportation and storage of manual lever-type submersible air supply pumps (hereinafter referred to as hand pumps). This standard applies to hand pumps used in conjunction with ventilated heavy diving equipment to provide breathing air for divers when the diving depth is shallower than 20m.
JT/T 204-1995 history
1995JT/T 204-1995 Diving air supplying pump model TF-20(lever typ.)