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ASTM D5071-06(2013)

(Practice)

Standard Practice for Exposure of Photodegradable Plastics in a Xenon Arc Apparatus

Standard Practice for Exposure of Photodegradable Plastics in a Xenon Arc Apparatus

SIGNIFICANCE AND USE
4.1 Materials made from photodegradable plastics are intended to deteriorate rapidly when exposed to solar radiation, oxygen, heat, moisture and other degrading elements of the weather. This practice is used for evaluating the photodegradability of plastics when exposed in an apparatus that produces simulated daylight (1,2)6 and controlled temperature and moisture. The exposure used in this practice is not intended to simulate the deterioration caused by localized weather phenomena such as atmospheric pollution, biological attack, and salt water exposure. There can be no positive correlation of exposure results between this and other laboratory weathering devices.  
4.2 Variations in results can be expected when operating conditions are varied within the accepted limits of this practice. Therefore, all test results using this practice must be accompanied by the specific operating conditions required in Section 9. Refer to Practice G151 for detailed information on the caveats applicable to use of results obtained in accordance with this practice.  
4.3 The results of laboratory exposure cannot be directly extrapolated to estimate absolute rate of deterioration by the environment because the acceleration factor is material dependent and can be significantly different for each material and for different formulations of the same material. However, exposure of a similar material of known outdoor performance, a control, at the same time as the test specimens allows comparison of the durability relative to that of the control under the test conditions. Evaluation in terms of relative durabilities also greatly improves the agreement in test results among different laboratories (3).  
4.4 Test results will depend on the care that is taken to operate the equipment in accordance with Practice G155. Significant factors include regulation of line voltage, freedom from salt or other deposits from water, temperature and humidity control and condition and age of the burners and ...
SCOPE
1.1 This practice covers specific procedures and test conditions that are applicable for xenon arc exposure of photodegradable plastics conducted in accordance with Practices G151 and G155. This practice also covers the preparation of test specimens, the test conditions best suited for photodegradable plastics, and the evaluation of test results.  
1.2 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.Note 1—This practice is technically equivalent to ISO 4892-2 and Practice D2565 which cover xenon arc exposures of plastics intended for long term use in outdoor applications.

General Information

Status
Historical
Publication Date
31-Mar-2013
ICS
13.030.99 - Other standards related to wastes
29.140.30 - Fluorescent lamps. Discharge lamps
Technical Committee
D20 - Plastics
Drafting Committee
D20.96 - Environmentally Degradable Plastics and Biobased Products
Current Stage
Ref Project

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ASTM D5071-06(2013) - Standard Practice for Exposure of Photodegradable Plastics in a Xenon Arc ApparatusASTM D5071-06(2013) - Standard Practice for Exposure of Photodegradable Plastics in a Xenon Arc Apparatus
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ASTM D5071-06(2013) - Standard Practice for Exposure of Photodegradable Plastics in a Xenon Arc Apparatus
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Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: D5071 − 06 (Reapproved 2013)
Standard Practice for
Exposure of Photodegradable Plastics in a Xenon Arc
1
Apparatus
This standard is issued under the fixed designation D5071; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope* D3890 Test Method for Number of Strokes to Prime a
Mechanical Pump Dispenser
1.1 This practice covers specific procedures and test condi-
D5870 Practice for Calculating Property Retention Index of
tions that are applicable for xenon arc exposure of photode-
Plastics
gradable plastics conducted in accordance with Practices G151
E691 Practice for Conducting an Interlaboratory Study to
and G155. This practice also covers the preparation of test
Determine the Precision of a Test Method
specimens, the test conditions best suited for photodegradable
G113 Terminology Relating to Natural andArtificial Weath-
plastics, and the evaluation of test results.
ering Tests of Nonmetallic Materials
1.2 This standard does not purport to address all of the
G141 Guide for Addressing Variability in Exposure Testing
safety concerns, if any, associated with its use. It is the
of Nonmetallic Materials
responsibility of the user of this standard to establish appro-
G147 Practice for Conditioning and Handling of Nonmetal-
priate safety and health practices and determine the applica-
lic Materials for Natural and Artificial Weathering Tests
bility of regulatory limitations prior to use.
G151 Practice for Exposing Nonmetallic Materials inAccel-
erated Test Devices that Use Laboratory Light Sources
NOTE 1—This practice is technically equivalent to ISO 4892-2 and
Practice D2565 which cover xenon arc exposures of plastics intended for
G155 Practice for Operating XenonArc LightApparatus for
long term use in outdoor applications.
Exposure of Non-Metallic Materials
G169 Guide for Application of Basic Statistical Methods to
2. Referenced Documents
Weathering Tests
2
2.1 ASTM Standards:
2.2 Other Standards:
D882 Test Method for Tensile Properties of Thin Plastic
ISO 4892-2 Plastics—Method of Exposure to Laboratory
Sheeting
4
Light Sources—Part 2, Xenon Arc Sources
D883 Terminology Relating to Plastics
5
Publication C.I.E. No. 85 (1989)
D1293 Test Methods for pH of Water
DIN 53384 Testing of Plastics: Artificial Weathering or
D2565 Practice for Xenon-Arc Exposure of Plastics In-
ExposureinLaboratoryExposureWeatheringorExposure
tended for Outdoor Applications
4
in Laboratory Exposure Apparatus to UV Radiation
D3593 Test Method for Molecular Weight Averages/ Distri-
bution of Certain Polymers by Liquid Size-Exclusion
3. Terminology
Chromatography (Gel Permeation Chromatography GPC)
3
3.1 Definitions—The definitions given in Terminologies
Using Universal Calibration (Withdrawn 1993)
D883 and G113 are applicable to this practice.
D3826 Practice for Determining Degradation End Point in
Degradable Polyethylene and Polypropylene Using a Ten-
4. Significance and Use
sile Test
4.1 Materials made from photodegradable plastics are in-
tended to deteriorate rapidly when exposed to solar radiation,
1
ThispracticeisunderthejurisdictionofASTMCommitteeD20onPlasticsand
oxygen, heat, moisture and other degrading elements of the
isthedirectresponsibilityofSubcommitteeD20.96onEnvironmentallyDegradable
weather. This practice is used for evaluating the photodegrad-
Plastics and Biobased Products.
Current edition approved April 1, 2013. Published April 2013. Originally
ability of plastics when exposed in an apparatus that produces
approved in 1991. Last previous edition approved in 2006 as D5071 - 06. DOI:
10.1520/D5071-06R13.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
4
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
Standards volume information, refer to the standard’s Document Summary page on 4th Floor, New York, NY 10036.
5 st
the ASTM website. Publication No. CIE 85, 1 Ed., 1989 Technical Report, “Solar Spectral
3
The last approved version of this historical standard is referenced on Irradiance,” available from U.S. National Committee CIE, Mr.Thomas M. Lemons,
www.astm.org. TLA-Lighting Consultants, Inc., 72 Loring Ave., Salem, MA 01970.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D5071 − 06 (2013)
6
simulated daylight (1,2) and controlled temperature and mois- used to evaluate the effects of
...

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