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ASTM-D5419:2014 Edition

ASTM-D5419:2014 Edition

$40.63

D5419-14a Standard Test Method for Environmental Stress Crack Resistance (ESCR) of Threaded Plastic Closures

Published By Publication Date Number of Pages
ASTM 2014 5
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ASTM D5419-14a

Historical Standard: Standard Test Method for Environmental Stress Crack Resistance (ESCR) of Threaded Plastic Closures

ASTM D5419

Scope

1.1 This test method determines the susceptibility of threaded plastic closures to failure due to environmental stress cracking (ESC).

1.2 In use, threaded plastic closures can contact agents that appreciably reduce the stress at which cracks form. Examples of such agents are: soaps, detergents, oils, and liquid bleaches.

1.3 Major factors that influence environmental stress crack resistance (ESCR) of threaded plastic closures include the closure material(s), closure design, molded-in stress, and applied stress.

1.4 This procedure can be applied to all closures, but is particularly applicable to closures made from plastics based on polypropylene (PP) or polystyrene (PS).

1.5 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.

1.6 This standard does not purport to address all of 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. Specific precautionary statements are given in Section 8 and 6.2.

Note 1: There is no known ISO equivalent to this standard.

Keywords

closures; environmental stress crack resistance (ESCR); failure; plastic; stress crack; threaded plastic closures;

ICS Code

ICS Number Code 83.080.20 (Thermoplastic materials)

DOI: 10.1520/D5419-14A

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