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Significance and Use
The application of this test method provides a means for evaluating one of the variables affecting the ability of the closure-container system to function as specified.
Variability in rotational torque measurements is probably due to the use of the torque meter to measure relatively small torque values, differences in critical package dimensions, and the aging of components.
1.1 This test method covers the measurement of rotational torques of Type IIIA child-resistant closures as a means of monitoring normal functioning of the child-resistant package.
1.2 This test method is not intended to supplant preexisting closure or package specifications or preexisting incoming material test procedures.
This standard does not purport to address the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D3474 Practice for Calibration and Use of Torque Meters Used in Packaging Applications
D3475 Classification of Child-Resistant Packages
E105 Practice for Probability Sampling of Materials
E122 Practice for Calculating Sample Size to Estimate, With Specified Precision, the Average for a Characteristic of a Lot or Process
ICS Number Code 55.020 (Packaging and distibution of goods in general)
ASTM D3968-97(2007), Standard Test Method for Monitoring of Rotational Torque of Type IIIA Child-Resistant Closures, ASTM International, West Conshohocken, PA, 2007, www.astm.orgBack to Top