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ASTM G23-96

(Practice)

Practice for Operating Light-Exposure Apparatus (Carbon-Arc Type) With and Without Water for Exposure of Nonmetallic Materials (Withdrawn 2000)

Practice for Operating Light-Exposure Apparatus (Carbon-Arc Type) With and Without Water for Exposure of Nonmetallic Materials (Withdrawn 2000)

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1.1 This practice covers the basic principles and operating procedures for light-exposure apparatus with and without water spray employing a carbon-arc light source.  
1.2 This practice does not specify the exposure conditions best suited for the material to be tested. It is limited to the method of obtaining, measuring, and controlling the conditions and procedures of the exposure. Sample preparation, test conditions, and evaluation of results are covered in ASTM test methods or specifications for specific materials.  Note 1-Attention is called to the following test methods and practices for more information on use of this practice for specific materials: Practices D822, D904, D1499, D3361, D3815, E765 and Test Methods C732, C734, C741, D529, D750, D3424 and D3583.
1.3 This practice includes four procedures:  
1.3.1 Method 1 -Continuous exposure to light and intermittent exposure to water spray.  
1.3.2 Method 2 -Alternate exposure to light and darkness and intermittent exposure to water spray.  
1.3.3 Method 3 -Continuous exposure to light without water spray. Specific exposure conditions for testing fabric are found in AATCC Test Method 16A.  
1.3.4 Method 4 -Alternate exposure to light and darkness without water spray.  
1.4 The values stated in SI units are to be regarded as the standard. The inch-pound unit equivalents of the SI units may be approximate.
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.

General Information

Status
Withdrawn
Publication Date
31-Dec-1995
ICS
59.080.30 - Textile fabrics
Technical Committee
G03 - Weathering and Durability
Drafting Committee
G03.03 - Simulated and Controlled Exposure Tests
Current Stage
Ref Project

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ASTM G23-96 - Practice for Operating Light-Exposure Apparatus (Carbon-Arc Type) With and Without Water for Exposure of Nonmetallic Materials (Withdrawn 2000)ASTM G23-96 - Practice for Operating Light-Exposure Apparatus (Carbon-Arc Type) With and Without Water for Exposure of Nonmetallic Materials (Withdrawn 2000)
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ASTM G23-96 - Practice for Operating Light-Exposure Apparatus (Carbon-Arc Type) With and Without Water for Exposure of Nonmetallic Materials (Withdrawn 2000)
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Standards Content (Sample)

Designation: G 23 – 96
AMERICAN SOCIETY FOR TESTING AND MATERIALS
100 Barr Harbor Dr., West Conshohocken, PA 19428
Reprinted from the Annual Book of ASTM Standards. Copyright ASTM
Standard Practice for
Operating Light-Exposure Apparatus (Carbon-Arc Type)
With and Without Water for Exposure of Nonmetallic
1
Materials
This standard is issued under the fixed designation G 23; 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 (e) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope 2. Referenced Documents
1.1 This practice covers the basic principles and operating 2.1 ASTM Standards:
procedures for light-exposure apparatus with and without water C 732 Test Method for Aging Effects of Artificial Weather-
2
spray employing a carbon-arc light source. ing on Latex Sealants
1.2 This practice does not specify the exposure conditions C 734 Test Method for Low-Temperature Flexibility of
2
best suited for the material to be tested. It is limited to the Latex Sealants After Artificial Weathering
method of obtaining, measuring, and controlling the conditions C 741 Test Method for Accelerated Aging of Wood Sash
2
and procedures of the exposure. Sample preparation, test Face Glazing Compound
conditions, and evaluation of results are covered in ASTM test D 529 Test Method for Accelerated Weathering Test Con-
methods or specifications for specific materials. ditions and Procedures Bituminous Materials (Carbon-Arc
3
Method)
NOTE 1—Attention is called to the following test methods and practices
D 750 Test Method for Rubber Deterioration in Carbon-Arc
for more information on use of this practice for specific materials:
4
Weathering Apparatus
Practices D 822, D 904, D 1499, D 3361, D 3815, E 765 and Test
D 822 Practice for Conducting Tests on Paint and Related
Methods C 732, C 734, C 741, D 529, D 750, D 3424 and D 3583.
Coatings and Materials Using Filtered Open-Flame
1.3 This practice includes four procedures:
5
Carbon-Arc Light and Water Exposure Apparatus
1.3.1 Method 1—Continuous exposure to light and intermit-
6
D 859 Test Methods for Silica in Water
tent exposure to water spray.
D 904 Practice for Exposure of Adhesive Specimens to
1.3.2 Method 2—Alternate exposure to light and darkness
7
Artificial Light
and intermittent exposure to water spray.
6
D 1293 Test Methods for pH of Water
1.3.3 Method 3—Continuous exposure to light without
D 1499 Practice for Operating Light- and Water-Exposure
water spray. Specific exposure conditions for testing fabric are
8
Apparatus (Carbon-Arc Type) for Exposure of Plastics
found in AATCC Test Method 16A.
D 3361 Practice for Operating Light- and Water-Exposure
1.3.4 Method 4—Alternate exposure to light and darkness
Apparatus (Unfiltered Open-Flame Carbon-Arc Type) for
without water spray.
Testing Paint, Varnish, Lacquer, and Related Products
1.4 The values stated in SI units are to be regarded as the
5
Using the Dew Cycle
standard. The inch-pound unit equivalents of the SI units may
D 3424 Test Methods for Evaluating the Lightfastness and
be approximate.
9
Weatherability of Printed Matter
1.5 This standard does not purport to address all of the
D 3583 Methods of Testing Joint Sealant, Hot-Applied,
safety concerns, if any, associated with its use. It is the
Elastomeric-Type, for Portland Cement Concrete Pave-
responsibility of the user of this standard to establish appro-
ments, or Joint Sealant, Hot-Applied, Elastomeric, Jet-
priate safety and health practices and determine the applica-
Fuel-Resistant-Type, for Portland Cement Concrete Pave-
bility of regulatory limitations prior to use.
10
ments
1
2
This practice is under the jurisdiction of ASTM Committee G-3 on Durability
Annual Book of ASTM Standards, Vol 04.07.
3
of Nonmetallic Materials and is the direct responsibility of Subcommittee G03.03
Annual Book of ASTM Standards, Vol 04.04.
4
on Simulated and Controlled Environmental Tests.
Annual Book of ASTM Standards, Vol 09.01.
5
Current edition approved Jan. 10, 1996. Published April 1996. Originally
Annual Book of ASTM Standards, Vol 06.01.
6
published as E42 – 42 T. Last previous edition G23 – 95. Annual Book of ASTM Standards, Vol 11.01.
7
Practice G 25, Standard Recommended Practice for Operating Enclosed Carbon Annual Book of ASTM Standards, Vol 15.06.
8
Arc Type Apparatus for Light Exposure of Nonmetallic Materials, is to be Annual Book of ASTM Standards, Vol 08.01.
9
discontinued since it now is covered in this edition of G23 and its Methods 3 and Annual Book of ASTM Standards, Vol 06.02.
10
4. Annual Book of ASTM Standards, Vol 04.03.
1

---------------------- Page: 1 ----------------------
G23
D 3815 Practice for Accelerated Aging of Pressure- form as specified in Fig. 1.
11
Sensitive Tapes by Carbon-Ar
...

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5.1 The asphalt retention is a test procedure for full-width paving fabrics. The use of this test method is to establish an index value by providing standard criteria and a basis for uniform reporting.  
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5.1 The construction, composition, and color of textiles contain useful comparative characteristics for forensic examinations. Textiles are observed in a variety of constructions: woven, knit, nonwoven, or in combination. The range of colors in which textiles are offered in the marketplace is vast and constantly changing due to styles and seasons.  
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1.2 The values stated in inch-pound units are to be regarded as standard. No other units of measurement are included in this standard.  
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5.3 Abrasion tests are all subject to variation due to changes in the abradant during specific tests. The abradant must accordingly be changed at frequent intervals or checked periodically against a standard. With disposable abradants, the abradant is used only once or changed after limited use. With permanent abradants that use hardened metal or equivalent surfaces, it is assumed that the abradant will not change appreciably in a specific series of tests, but obviously similar abradants used in different laboratories will not likely change at the same rate due to differences in usage. Permanent abradants may also change due to pick up of finishing or other material from test fabrics and must accordingly be cleaned at frequent intervals. The measurement of the relative amount of abrasion may also be affected by the method of evaluation and may be influenced by the judgment of the operator.  
5.4 The resistance of textile materials to abrasion as measured on a testing machine in the laboratory is generally only one of several factors contributing to wear performance or durability as experienced in the actual use of the material. While “abrasion resistance” (often stated in terms of the number of cycles on a specified machine, using a specified technique to produce a spe...
SCOPE
1.1 This test method covers the determination of the abrasion resistance of woven textile fabrics using the oscillatory cylinder tester. This test method may not be usable for some fabric constructions.
Note 1: Other procedures for measuring the abrasion resistance of textile fabrics are given in: Guides D3884 and D4158, and Test Methods D3885, D3886, and AATCC 93.  
1.2 The values stated in SI units are to be regarded as standard. The values given in parentheses after SI units are provided for information only and are not considered standard.  
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