Standard Test Method for Effect of Exposure of Unreinforced Polyolefin Geomembrane Using Fluorescent UV Condensation Apparatus

Importancia y uso:

5.1 The use of this apparatus is intended to induce property changes associated with the end-use conditions, including the effects of the UV portion of sunlight, moisture, and heat. Exposures are not intended to simulate the deterioration caused by localized weather phenomena, such as atmospheric pollution, biological attack, and saltwater exposure.

Note 3: Refer to Practice G151 for cautionary guidance applicable to laboratory weathering devices.

5.2 Variation in results may be expected when operating conditions are varied within the accepted limits of this method.

5.3 Test data for one thickness of a geomembrane cannot be used as data for other thickness geomembranes made with the same formula (polymer, pigment, and stabilizers) since the degradation is thickness related.

Note 4: It is recommended that a similar material of known performance (a control) be exposed simultaneously with the test material to provide a standard for comparative purposes. When control material is used in the test program, it is recommended only one coupon be used for each UV exposure period to allow for OIT testing.

Subcomité:

D35.02

Referida por:

D5819-22, D8269-21

Volúmen:

04.13

Número ICS:

59.080.70 (Geotextiles)

Palabras clave:

accelerated; fluorescent UV; geomembrane; temperature; ultraviolet;