AS 2432:2015 Babies’ dummies
5.5.1 Teat
NOTE: Refer to Paragraphs K13 and K14 of Appendix K.
The following provisions apply to the teat of a dummy:
(a) It shall have an external surface that is smooth.
(b) If made from latex rubber it shall have a minimum uncompressed thickness of 1.1 mm at any point.
(c) Any hollow section of the teat shall not contain solid, fluid or gaseous substances (except air), nor shall it contain any inserts except for the plug.
NOTE: Loose solid objects and liquid fillings cannot be contained within parts of a dummy because they present an inhalation hazard to the baby.
(d) It shall be constructed so that liquid will not flow into or out of the front portion of the teat.
(e) If designed so that liquid may flow into or out of the rear portion of the teat through an opening, the opening shall either—
(i) have a cross-sectional area of 19.6 mm 2 or more and permit a suitable cleaning brush to penetrate all inner parts of the teat to enable the teat to be completely cleaned and sterilized; or
(ii) be so constructed that, when the dummy is treated in accordance with the cleaning instructions as required by Clause 8.2, the dummy including the inside of the teat is capable of being cleaned and sterilized.
NOTE: An opening having a cross-sectional area of 19.6 mm 2 is equivalent to a circular opening having a diameter of 5 mm.
NOTE: Ventilation holes have been specified in Clause 5.5.2, Item (b) because these would not only provide air passages through which a baby could breathe if the dummy was accidentally ‘swallowed’, but the ventilation holes would also prevent the risk of the dummy being sucked into the oral pharynx since negative pressure would be generated.
Although the requirement in Clause 5.5.2, Item (b) would be satisfied with only two ventilation holes in the shield, the shield should have more than two holes as this would not only provide greater ventilation but would also reduce the risk of all the holes becoming blocked by being overlayed with the inner walls of the baby’s mouth.