ASTM D3361/D3361M-13
Standard Practice for Unfiltered Open-Flame Carbon-Arc Exposures of Paint and Related Coatings

Standard No.

ASTM D3361/D3361M-13

Release Date

2013

Published By

American Society for Testing and Materials (ASTM)

Status

Be replaced

Replace By

ASTM D3361/D3361M-13(2018)

Latest

ASTM D3361/D3361M-22

Scope

4.1 The ability of a paint or coating to resist deterioration of its physical 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.

4.2 Cautions—Variation in results may be expected when different operating conditions are used. Therefore, no reference to the use of this practice shall be made unless accompanied by a report prepared according to Section 10 that describes the specific operating conditions used. Refer to Practice G151 for detailed information on the caveats applicable to use of results obtained according to this practice.

Note 1—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 G141.

4.2.1 The spectral power distribution of light from an unfiltered open-flame carbon arc is significantly different from that produced in light and water exposure devices using other carbon-arc configurations or other light sources. The type and rate of degradation and the performance rankings produced by exposures to unfiltered open-flame carbon-arcs can be much different from that produced by exposures to other types of laboratory light sources. Typically, exposures conducted according to this practice will produce degradation faster than similar exposures conducted in accordance with Practice D822/D822M or D5031/D5031M and may cause different types of degradation.

4.2.2 Interlaboratory comparisons are valid only when all laboratories use the same type of carbon-arc and exposure conditions.

4.3 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.^4,5 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.

4.4 Test results will depend upon the care that is taken to operate the equipment in accordance with Practice G152. Significant factors include regulation of line voltage, freedom from salt or other deposits from water, temperature and humidity control, and conditions of the electrodes.

4.5 All references to exposures in accordance with this practice must include a complete description of the test cycle used.

1.1 This practice covers the selection of test conditions for accelerated exposure testing of coatings and related products in unfiltered open-flame carbon-arc devices conducted according to Practice G151 and G152. This practice also covers the preparation of test specimens, the test conditio......

ASTM D3361/D3361M-13 Referenced Document

• ASTM D1005 Standard Test Method for Measurement of Dry-Film Thickness of Organic Coatings Using Micrometers
• ASTM D1186 Standard Test Methods for Nondestructive Measurement of Dry Film Thickness of Nonmagnetic Coatings Applied to a Ferrous Base
• ASTM D1400 Standard Test Method for Nondestructive Measurement of Dry Film Thickness of Nonconductive Coatings Applied to a Nonferrous Metal Base
• ASTM D1729 Standard Practice for Visual Appraisal of Colors and Color Differences of Diffusely-Illuminated Opaque Materials
• ASTM D1730 Standard Practices for Preparation of Aluminum and Aluminum-Alloy Surfaces for Painting
• ASTM D2244 Standard Test Method for Calculation of Color Differences From Instrumentally Measured Color Coordinates
• ASTM D2616 Standard Test Method for Evaluation of Visual Color Difference With a Gray Scale
• ASTM D358 Standard Specification for Wood to Be Used as Panels in Weathering Tests of Coatings
• ASTM D3980 Standard Practice for Interlaboratory Testing of Paint and Related Materials
• ASTM D4214 Standard Test Methods for Evaluating the Degree of Chalking of Exterior Paint Films
• ASTM D5031/D5031M Standard Practice for Enclosed Carbon-Arc Exposure Tests of Paint and Related Coatings
• ASTM D523 Standard Test Method for Specular Gloss
• ASTM D5870 Standard Practice for Calculating Property Retention Index of Plastics
• ASTM D609 Standard Practice for Preparation of Cold-Rolled Steel Panels for Testing Paint, Varnish, Conversion Coatings, and Related Coating Products
• ASTM D610 Standard Test Method for Evaluating Degree of Rusting on Painted Steel Surfaces
• ASTM D659 Method of Evaluating Degree of Chalking of Exterior Paints
• ASTM D660 Standard Test Method for Evaluating Degree of Checking of Exterior Paints
• ASTM D662 Standard Test Method for Evaluating Degree of Erosion of Exterior Paints
• ASTM D714 Standard Test Method for Evaluating Degree of Blistering of Paints
• ASTM D772 Standard Test Method for Evaluating Degree of Flaking (Scaling) of Exterior Paints
• ASTM D822/D822M Standard Practice for Filtered Open-Flame Carbon-Arc Exposures of Paint and Related Coatings
• ASTM D823 Standard Practices for Producing Films of Uniform Thickness of Paint, Varnish, and Related Products on Test Panels
• ASTM E1347 Standard Test Method for Color and Color-Difference Measurement by Tristimulus (Filter) Colorimetry
• ASTM E691 Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
• ASTM G113 Standard Terminology Relating to Natural and Artificial Weathering Tests of Nonmetallic Materials
• ASTM G141 Standard Guide for Addressing Variability in Exposure Testing on Nonmetallic Materials
• ASTM G147 Standard Practice for Conditioning and Handling of Nonmetallic Materials for Natural and Artificial Weathering Tests
• ASTM G151 Standard Practice for Exposing Nonmetallic Materials in Accelerated Test Devices that Use Laboratory Light Sources
• ASTM G152 Standard Practice for Operating Open Flame Carbon Arc Light Apparatus for Exposure of Nonmetallic Materials*， 2024-04-20 Update
• ASTM G169 Standard Guide for Application of Basic Statistical Methods to Weathering Tests*， 2024-04-20 Update

ASTM D3361/D3361M-13 history

• 2022 ASTM D3361/D3361M-22 Standard Practice for Unfiltered Open-Flame Carbon-Arc Exposures of Paint and Related Coatings
• 2018 ASTM D3361/D3361M-13(2018) Standard Practice for Unfiltered Open-Flame Carbon-Arc Exposures of Paint and Related Coatings
• 2013 ASTM D3361/D3361M-13 Standard Practice for Unfiltered Open-Flame Carbon-Arc Exposures of Paint and Related Coatings
• 2001 ASTM D3361-01(2006) Standard Practice for Unfiltered Open-Flame Carbon-Arc Exposures of Paint and Related Coatings
• 2001 ASTM D3361-01 Standard Practice for Unfiltered Open-Flame Carbon-Arc Exposures of Paint and Related Coatings
• 1993 ASTM D3361-93 Standard Practice for Unfiltered Open-Flame Carbon-Arc Exposures of Paint and Related Coatings