This Pakistan Standard
(a) gives the definition and conventional representation of conical fittings for certain apparatus for medical use (syringes, needles, transfusion equipment),*
(b) and establishes the dimensional characteristics of two conical fittings based on a 6% and 10% taper.
These dimensional characteristics concern conical fittings in glass and metal, and are not applicable to conical fittings made of plastics material.
PS 1368-1975 history
1975PS 1368-1975 CONICAL FITTINGS FOR SYRINGES, NEEDLES AND OTHER MEDICAL EQUIPMENT