Standard Test Method for Environmental Stress Crack Resistance (ESCR) of Plastic Tight-head Drums Not Exceeding 60 Gal (227 L) in Rated Capacity

Importancia y uso:

5.1 These procedures provide an indication of the environmental stress-crack resistance of plastic tight-head drums. This test method may be used for determining the applicability of various plastic resins, mold designs, processing techniques, and parameters for plastic tight-head drums.

5.2 Environmental stress cracking is indicative of what results when a container is exposed to chemical agents such as soaps, organics, bleaches, or any surface-active solutions while under conditions of stress.

5.3 Environmental stress cracking is a mechanism of chemical attack that is highly dependent upon the test reagent, resin, container manufacturing or processing history, exposure temperature, applied stress, and other factors. The combination of these factors may result in eventual stress crack failure.

5.4 Both procedures minimize the potential for test variability by providing the user with rigidly defined test conditions. This test method may be used as design qualification and auditing tools for plastic tight-head drums.

5.5 This test method is not meant to provide a quantitative value of measurement (that is, number of days to failure). It is intended only as a pass/fail procedure in accordance with user’s specifications, or as agreed upon between the user and supplier. It is not intended as a predictor or indicator of field performance regarding time to failure.

Subcomité:

D10.21

Volúmen:

15.10

Número ICS:

55.140 (Barrels. Drums. Canisters)

Palabras clave:

drum; environmental stress crack; internal pressure; plastic; stacking; stress crack; tight-head ;