Pressure gauge for medical use
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Pressure gauge for medical use
The name of the instrument manufacturer must be indicated.2. Must indicate the instrument accuracy class; 3. The surface of the pressure gauge should be marked with the words of medical pressure gauge to distinguish from common pressure gauge. 4. The materials used in the manufacture of medical pressure gauge must be harmless to human body, and the following matters should be paid attention to in the manufacture of medical pressure gauge with high-pressure syringe: The fluorescent pigment imported from the United States for dial printing is harmless to human body; Dial Ring Number 0 ~ 30 Bar, Inner Ring Number 0 ~ 400 PSI, Inner Ring Number 0 ~ 400 Psi, inner and Outer Ring Black, vacuum range below "0" marked in red; dial ring diameter 0.3 mm, coarse scale length 1.8 mm, coarse scale length 0.6 mm, fine scale length 1.0 mm, coarse scale length 0.3 mm, the writing height is 3mm, the 0.5 mm is thick; the instrument in the non-pressure state, the pointer accurately points in the "0" bit, the upper can not exceed the "0" bit, the lower can not touch the red vacuum area; the instrument in the working state the pointer rises steadily, should not stop, sudden jump, stuck needle, pointer off and so on, instrument tapping displacement, pointer indication value change is not more than ± 1 PSI, watch cover and case without loosening and falling off, watch cover should be smooth, transparent and free from stains. The main copper parts of the pressure gauge must be all copper, the precision of the instrument must be 3% 2% 3% , the shell of the pressure gauge must be baked with white paint, there is no bad sign such as peeling paint and rusting, and the transparent cover of the pressure gauge must not be more than 0.2 mm Pressure gauge copper body, thread can not have blackening, oxidation, copper bar, copper chips and produce the phenomenon of bronze. Moreover, the copper body and copper tube of the pressure gauge are in direct contact with the medical liquid, so all parts of the pressure gauge must be treated with high temperature, asepsis and ultrasonic pure water, asepsis welding, and the cleaning degree of the pressure gauge should reach EP level (Ytge) ; Pressure gauge products to go through a strict pressure and tightness testing, airtightness can reach 110-9 PA. . M 3/s, no rust or Burr on all the metal screw parts of the pressure gauge, no deformation of the pressure gauge, no clear marking of the printed word, no poor printing, lack of words, etc. The pressure gauge function test standard must according to Gb/t122-2001 and XYY
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