ASTM D4329-05

Standard Practice for Fluorescent UV Exposure of Plastics

SIGNIFICANCE AND USE
The ability of a plastic material to resist deterioration of its electrical, mechanical, and optical properties caused by exposure to light, heat, and water can be very significant for many applications. This practice is intended to induce property changes associated with end-use conditions, including the effects of sunlight, moisture, and heat. 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 saltwater exposure. (Warning—Variation in results may be expected when operating conditions are varied within the accepted limits of this practice. Therefore, no reference to the use of this practice should be made unless accompanied by a report prepared in accordance with Section 8 that describes the specific operating conditions used. Refer to Practice G 151 for detailed information on the caveats applicable to use of results obtained in accordance with this practice.)
Note 2—Additional information on sources of variability and on strategies for addressing variability in the design, execution, and data analysis of laboratory-accelerated exposure tests is found in Guide G 141.
Reproducibility of test results between laboratories has been shown to be good when the stability of materials is evaluated in terms of performance ranking compared to other materials or to a control.5 ,6 Therefore, exposure of a similar material of known performance (a control) at the same time as the test materials is strongly recommended. It is recommended that at least three replicates of each material be exposed to allow for statistical evaluation of results.
Test results will depend upon the care that is taken to operate the equipment in accordance with Practice G 154. Significant factors include regulation of line voltage, temperature of the room in which the device operates, temperature control, and condition and age of the lamp.
SCOPE
1.1 This practice covers specific procedures and test conditions that are applicable for fluorescent UV exposure of plastics conducted in accordance with Practices G 151 and G 154. This practice also covers the preparation of test specimens, the test conditions best suited for plastics, and the evaluation of test results.
1.2 The values stated in SI units are be regarded as standard. The values given in brackets are for information only.
1.3 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 similar to ISO 4892-3.

General Information

• Status: Historical
• Publication Date: 14-Jul-2005
• ICS: 83.080.01 - Plastics in general
• Technical Committee: D20 - Plastics
• Drafting Committee: D20.50 - Durability of Plastics

Relations

• Replaces: ASTM D4329-99 - Standard Practice for Fluorescent UV Exposure of Plastics
• Effective Date: 15-Jul-2005
• Referred By: ASTM D4976-12a(2020) - Standard Specification for Polyethylene Plastics Molding and Extrusion Materials
• Effective Date: 15-Jul-2005
• Referred By: ASTM D1047-21 - Standard Specification for Poly(Vinyl Chloride) Jacket for Wire and Cable
• Effective Date: 15-Jul-2005
• Referred By: ASTM D6662-22 - Standard Specification for Polyolefin-Based Plastic Lumber Decking Boards
• Effective Date: 15-Jul-2005
• Referred By: ASTM D5208-14(2022) - Standard Practice for Fluorescent Ultraviolet (UV) Exposure of Photodegradable Plastics
• Effective Date: 15-Jul-2005
• Referred By: ASTM D4101-17e1 - Standard Classification System and Basis for Specification for Polypropylene Injection and Extrusion Materials
• Effective Date: 15-Jul-2005
• Referred By: ASTM G178-16(2023) - Standard Practice for Determining the Activation Spectrum of a Material (Wavelength Sensitivity to an Exposure Source) Using the Sharp Cut-On Filter or Spectrographic Technique
• Effective Date: 15-Jul-2005
• Referred By: ASTM F2418-19 - Standard Specification for Polypropylene (PP) Corrugated Wall Stormwater Collection Chambers
• Effective Date: 15-Jul-2005
• Referred By: ASTM F1975-15(2023) - Standard Specification for Nonpowered Bicycle Trailers Designed for Human Passengers
• Effective Date: 15-Jul-2005
• Referred By: ASTM D5870-22 - Standard Practice for Calculating Property Retention Index of Plastics
• Effective Date: 15-Jul-2005
• Referred By: ASTM F3378/F3378M-22 - Standard Specification for Crosslinkable Polyethylene (CX-PE) Pipe
• Effective Date: 15-Jul-2005
• Referred By: ASTM F2774-09(2020) - Standard Practice for Manufacturing Quality Control of Consumer Trampoline Bed Material
• Effective Date: 15-Jul-2005
• Referred By: ASTM F3059-18 - Standard Specification for Fiber-Reinforced Polymer (FRP) Gratings Used in Marine Construction and Shipbuilding
• Effective Date: 15-Jul-2005
• Referred By: ASTM D1248-16 - Standard Specification for Polyethylene Plastics Extrusion Materials for Wire and Cable
• Effective Date: 15-Jul-2005
• Referred By: ASTM D4000-23 - Standard Classification System for Specifying Plastic Materials
• Effective Date: 15-Jul-2005

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: D4329 − 05
StandardPractice for
1
Fluorescent UV Exposure of Plastics
This standard is issued under the fixed designation D4329; 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* G154 PracticeforOperatingFluorescentLightApparatusfor
UV Exposure of Nonmetallic Materials
1.1 This practice covers specific procedures and test condi-
G169 Guide for Application of Basic Statistical Methods to
tionsthatareapplicableforfluorescentUVexposureofplastics
Weathering Tests
conducted in accordance with Practices G151 and G154. This
G177 Tables for Reference Solar Ultraviolet Spectral Distri-
practice also covers the preparation of test specimens, the test
butions: Hemispherical on 37° Tilted Surface
conditions best suited for plastics, and the evaluation of test
4
2.2 ISO Standard:
results.
ISO 4892-3 Plastics—Methods of Exposure to Laboratory
1.2 ThevaluesstatedinSIunitsareberegardedasstandard.
Light Sources—Part 3, Fluorescent UV Lamps
The values given in brackets are for information only. 5
2.3 SAE Standard:
1.3 This standard does not purport to address all of the
SAE J2020 Accelerated Exposure of Automotive Exterior
safety concerns, if any, associated with its use. It is the
Materials Using a Fluorescent UV and Condensation
responsibility of the user of this standard to establish appro-
Apparatus
priate safety and health practices and determine the applica-
3. Terminology
bility of regulatory limitations prior to use.
3.1 The definitions in Terminology G113 are applicable to
NOTE 1—This practice is technically similar to ISO 4892-3.
this practice.
2. Referenced Documents
4. Significance and Use
2
2.1 ASTM Standards:
4.1 The ability of a plastic material to resist deterioration of
D3980 Practice for Interlaboratory Testing of Paint and
3
its electrical, mechanical, and optical properties caused by
Related Materials (Withdrawn 1998)
exposure to light, heat, and water can be very significant for
D5870 Practice for Calculating Property Retention Index of
many applications.This practice is intended to induce property
Plastics
changes associated with end-use conditions, including the
E691 Practice for Conducting an Interlaboratory Study to
effects of sunlight, moisture, and heat. The exposure used in
Determine the Precision of a Test Method
thispracticeisnotintendedtosimulatethedeteriorationcaused
G113 Terminology Relating to Natural andArtificial Weath-
by localized weather phenomena, such as, atmospheric
ering Tests of Nonmetallic Materials
pollution, biological attack, and saltwater exposure.
G141 Guide for Addressing Variability in Exposure Testing
(Warning—Variation in results may be expected when oper-
of Nonmetallic Materials
ating conditions are varied within the accepted limits of this
G147 Practice for Conditioning and Handling of Nonmetal-
practice. Therefore, no reference to the use of this practice
lic Materials for Natural and Artificial Weathering Tests
should be made unless accompanied by a report prepared in
G151 Practice for Exposing Nonmetallic Materials inAccel-
accordance with Section 8 that describes the specific operating
erated Test Devices that Use Laboratory Light Sources
conditions used. Refer to Practice G151 for detailed informa-
tion on the caveats applicable to use of results obtained in
1 accordance with this practice.)
This practice is under the jurisdiction ofASTM Committee D20 on Plastics and
is the direct responsibility of Subcommittee D20.50 on Durability of Plastics.
NOTE 2—Additional information on sources of variability and on
Current edition approved July 15, 2005. Published August 2005. Originally
strategies for addressing variability in the design, execution, and data
approved in 1984. Last previous edition approved in 1999 as D4329 - 99. DOI:
analysis of laboratory-accelerated exposure tests is found in Guide G141.
10.1520/D4329-05.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
4
Standards volume information, refer to the standard’s Document Summary page on Available from American National Standards Institute (ANSI), 25 W. 43rd St.,
the ASTM website. 4th Floor, New York, NY 10036.
3 5
The last approved version of this historical standard is referenced on Available from Society of Automotive Engineers (SAE), 400 Commonwealth
www.astm.org. Dr., Warrendale, PA 15096-0001.
*A Summary of Changes section appears at the end of this standard
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