overriding responsibility is to assure equivalent safety in the marketplace as authorized packaging. General provisions constrain the non-refillable aerosol container to a maximum diameter of 3", capacity to one liter (1000ml) and pressure to a maximum of 160 psig at 130°F. Pulling directly from PHSMA 49 CFR these areas should be considered: 178.33b–6 Manufacture. (a) Each container must be manufactured by thermoplastic processes that will assure uniformity of the completed container. No used material other than production residues or regrind from the same manufacturing process may be used. The packaging must be adequately resistant to aging and to degradation caused either by the substance contained or by ultraviolet radiation. And 178.33b–7 Design Qualification Test. (a) Drop Testing. (1) To ensure that creep does not affect the ability of the container type to retain the contents, each container type shall be drop tested as follows: three groups of twenty-five filled containers shall be dropped from 1.8m on to a rigid, non-resilient, flat and horizontal surface. One group must be conditioned at 38 °C (100 °F) for 26 weeks, the second group Continued from preceding page for 100 hours at 50 °C (122°F) and the third group for 18 hours at 55 °C (131 °F), prior to performing the drop test. (2) Criteria for passing the drop test: the containers must not break or leak. § 178.33b–8 Production Tests. (a) Burst Testing. (1) One out of each lot of 5,000 containers or less, successively produced per day must be pressure tested to destruction and must not burst below 240 psig. The container tested must be complete as intended for transportation. (2) Each such 5,000 containers or less, successively produced per day, shall constitute a lot and if the test container shall fail, the lot shall be rejected or ten additional containers may be selected at random and subjected to the test under which failure occurred. These containers shall be complete as intended for transportation. Should any of the ten containers thus tested fail, the entire lot must be rejected. All containers constituting a lot shall be of like material, size, design construction, finish, and quality. (b) Leak Testing. (1) Each empty container must be subjected to a pressure equal to or in excess of the maximum expected in the filled containers at 55 °C (131 °F) or 50 °C (122 °F) if the liquid phase does not exceed 95 percent of the capacity of the container at 50 °C (122 °F). This must be at least two-thirds of the design. Continued on page 36 16 Spray December 2013
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