ASTM D4587-11

1.1 This practice covers the selection of test conditions for accelerated exposure testing of coatings and related products in fluorescent UV and condensation devices conducted according to Practices G151 and G154. This practice also covers the preparation of test specimens, and the evaluation of test results. Table 1 describes commonly used test conditions.

Note 1 - Previous versions of this practice referenced fluorescent UV devices described by Practice , which described very specific equipment designs. Practice has been withdrawn and replaced by Practice G151, which describes performance criteria for all exposure devices that use laboratory light sources, and by Practice G154, which gives requirements for exposing nonmetallic materials in fluorescent UV devices.

Note 2 - ISO 11507:1997 also describes fluorescent UV-condensation exposures of paints and coatings.

1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.

1.3 This standard does not purport to address all of the safety problems 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.

TABLE 1 Test Cycles Commonly Used for Fluorescent UV-Condensation Exposure Testing of Paints and Related Coatings^A

Cycle Number	Cycle Description	340 nm IrradianceB,C	Black Panel TemperatureD	Typical UsesE
1	8 h UV 4 h condensation Repeated continuously	0.83 W/(m²·nm) dark period	70 ± 2.5 ºC (158 ± 5 ºF) 50 ± 2.5 ºC (122 ± 5 ºF)	Automotive coatingsF
2	4 h UV 4 h condensation Repeated continuously	0.89 W/(m²·nm) dark period	60 ± 2.5 (140 ± 5 ºF) 50 ± 2.5 (122 ± 5 ºF)	Industrial maintenance coatingsG
3	4 h UV 20 h condensation Repeated continuously	0.89 W/(m²·nm) dark period	60 ± 2.5 (140 ± 5 ºF) 50 ± 2.5 (122 ± 5 ºF)	Exterior wood coatings
4	8 h UV 4 h condensation Repeated continuously	0.89 W/(m²·nm) dark period	60 ± 2.5 (140 ± 5 ºF) 50 ± 2.5 (122 ± 5 ºF)	General metal coatings

^A The cycles described are not listed in any order indicating importance, and are not necessarily recommended for the applications listed. Additional exposure cycles are described in Practice G154.

^B The irradiance set point given is typical for devices operated without irradiance con

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Published:

06/01/2011

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Document History

ASTM D4587-23

ASTM D4587-11(2019)e1

ASTM D4587-11

ASTM D4587-01