ASTM D 3475-1995 (2003) 'Classification method for child-proof packaging'
(Classification of Child-Resistant Packages)
The United States is the first country to conduct research on child safety packaging and formulate its test method standards, and its standards and regulations for child safety packaging are relatively rich and complete. In the American Society for Testing and Materials (ASTM) standard catalogue, there are 9 standards related to child safety packaging, and specific requirements are given for some child safety packaging rules, mainly focusing on the classification method and child safety of child safety packaging. Packaging opening detection methods, etc.
Among them, ASTM D 3475-1995 (2003) 'Classification of Child-Resistant Packages' (Classification of Child-Resistant Packages) classifies child-safe packaging products. The screw-on child safety cover is a relatively common form of child safety packaging in the market. In the ASTM D 3475-1995 standard, this package cover belongs to the IA type child safety cover.
Compression type child safety cover Compression type child safety cover is generally a two-piece laminated cover with polypropylene injection molded into the inner core and polyethylene injection molded outer cover. The structure diagram is shown in Figure 1. When opening, the outer cover and the inner cover must be pressed tightly, so that the tongue in the outer cover bears against the protrusion at the end of the inner cover, and the teeth fit together and rotate at the same time. Otherwise, there is only a rattling sound and cannot be opened. When tightening this cap, just cover the bottle mouth and tighten it as usual. Since this cap opening method is different from general bottle caps, it can prevent children from opening and mistakenly swallowing it, and plays a role in safety protection for the use of medicines. At present, some companies in the market have extended the screw cap to the packaging of more products, as shown in Figure 2, from the packaging of medicines to the packaging of household chemicals such as bleach, and from the packaging of tablets to the packaging of liquids.
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Relevant test standards
GB/T 17876, BB/T 0025, BB/T 0034(GB/T 14803), ASTM D 2063, ASTM D 3198, ASTM D 3474, YBB00052005-2015, YBB00092002-2015, YBB00392003-2015, YBB00112002-2015
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