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ASTM-G154:2004 Edition

ASTM-G154:2004 Edition

$44.96

G154-04 Standard Practice for Operating Fluorescent Light Apparatus for UV Exposure of Nonmetallic Materials

Published By Publication Date Number of Pages
ASTM 2004 11
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1.1 This practice covers the basic principles and operating procedures for using fluorescent UV light, and water apparatus intended to reproduce the weathering effects that occur when materials are exposed to sunlight (either direct or through window glass) and moisture as rain or dew in actual usage. This practice is limited to the procedures for obtaining, measuring, and controlling conditions of exposure. A number of exposure procedures are listed in an appendix; however, this practice does not specify the exposure conditions best suited for the material to be tested.

Note 1Practice G151 describes performance criteria for all exposure devices that use laboratory light sources. This practice replaces Practice G53, which describes very specific designs for devices used for fluorescent UV exposures. The apparatus described in Practice G53 is covered by this practice.

1.2 Test specimens are exposed to fluorescent UV light under controlled environmental conditions. Different types of fluorescent UV light sources are described.

1.3 Specimen preparation and evaluation of the results are covered in ASTM methods or specifications for specific materials. General guidance is given in Practice G151 and ISO 4892-1. More specific information about methods for determining the change in properties after exposure and reporting these results is described in ISO 4582.

1.4 The values stated in SI units are to be regarded as the standard.

1.5 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.

1.6 This standard is technically similar to ISO 4892-3 and ISO DIS 11507.

PDF Catalog

PDF Pages PDF Title
1 Scope
Referenced Documents
Terminology
2 Summary of Practice
Significance and Use
Apparatus
3 TABLE 1
TABLE 2
4 Test Specimen
Test Conditions
Procedure
TABLE 3
5 Report
Precision and Bias
Keywords
6 A1. DETERMINING CONFORMANCE TO RELATIVE SPECTRAL POWER DISTRIBUTION TABLES
A1.1
A1.2
A1.3
X1. APPLICATION GUIDELINES FOR TYPICAL FLUORESCENT UV LAMPS
X1.1 General
X1.2 Simulations of Direct Solar UV Radiation Exposures
7 X1.3 Simulations of Exposures to Solar UV Radiation Through Window Glass
X1.4 Simulations of Exposures Where Glass or Transparent Plastic Forms Part of the Test Specimen
FIG. X1.1
FIG. X1.2
FIG. X1.3
8 X2. EXPOSURE CONDITIONS
X2.1
FIG. X1.4
FIG. X1.5
FIG. X1.6
FIG. X1.7
9 X2.2
X2.3
TABLE X2.1
TABLE X2.2
10 X3. COMPARISON OF BENCHMARK SOLAR UV SPECTRUM AND CIE 85 TABLE 4 SOLAR SPECTRUM
X3.1
X3.2
X3.3
TABLE X3.1
11 REFERENCES
TABLE X3.2

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