The tightness of retail packaging: A selection of test methods to be used for a wide range of packed products

Abstract

The tightness of retail packagings and of their closures is of primary importance both for domestic and industrial products. For this reason, a research programme designed t o establish proper testing methods for a wide range of 'packaging + product' combinations, i n order t o check their tightness or permeability, was set up.All the available testing methods were reviewed, the most reliable ones selected and their sensitivity determined. More than 200 combinations of 'packaging + product' belonging t o five families of consumer products were examined and their tightnesdpermeability problems noted.Finally, specific testing methods were assigned t o each combination of 'packaging + product'. All these examples are currently in use in the packaging laboratory as a guideline for the testing of every kind of packaging.

Sift‐proofness of Dangerous Goods Packagings – An Incompletely Defined Requirement

“…Tightness (proofness) is directly linked to the specific combination of packaging and product. 20 For hazardous products, the loss of filling substance shall be avoided. The safety aim of dangerous goods packagings is to protect humans, the environment and economic goods from hazardous materials.…”

“…4 In general, there are two physical transport mechanisms for the loss of filling substance from a packaging: leakage or permeability to gases and liquids. 20 In this paper, the leakage of solid dangerous goods (granular substances or powders) is considered. For the description of the term 'sift-proofness', the following parameters have to be considered:…”

“…Tightness (proofness) is directly linked to the specific combination of packaging and product . For hazardous products, the loss of filling substance shall be avoided.…”

“…The safety aim of dangerous goods packagings is to protect humans, the environment and economic goods from hazardous materials . In general, there are two physical transport mechanisms for the loss of filling substance from a packaging: leakage or permeability to gases and liquids . In this paper, the leakage of solid dangerous goods (granular substances or powders) is considered.…”