ASTM D1610-18
(Practice)Standard Practice for Conditioning Leather and Leather Products for Testing
Standard Practice for Conditioning Leather and Leather Products for Testing
SIGNIFICANCE AND USE
5.1 Temperature and relative humidity have an influence on many of the physical properties of leather. Depending on environmental conditions the moisture content in leather may vary significantly. Standardized conditioning in part allows for reliable comparisons to be made among different leather and leather products, and among different laboratories.
SCOPE
1.1 This practice covers the conditioning of all units and specimens of leather and leather products prior to testing and the conditions under which they should be tested. This practice does not apply to wet blue.
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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.3 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
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Designation: D1610 − 18
Standard Practice for
1
Conditioning Leather and Leather Products for Testing
This standard is issued under the fixed designation D1610; 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.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope (2) atemperatureof20 62°C(68.0 63.6°F)andarelative
humidity of 65 64%.
1.1 This practice covers the conditioning of all units and
Condition set (1) is used as the standard for leather testing in
specimens of leather and leather products prior to testing and
NorthAmerica and condition set (2) is used as the standard for
the conditions under which they should be tested.This practice
leather testing in Europe and Japan.
does not apply to wet blue.
1.2 This standard does not purport to address all of the
4. Summary of Test Method
safety concerns, if any, associated with its use. It is the
4.1 The conditioning prescribed in this practice is designed
responsibility of the user of this standard to establish appro-
to obtain reproducible test results on leather and leather
priate safety, health, and environmental practices and deter-
products by the standardization of the relative humidity and
mine the applicability of regulatory limitations prior to use.
temperature conditions to which the leather or leather product
1.3 This international standard was developed in accor-
is subjected prior to and during testing.
dance with internationally recognized principles on standard-
ization established in the Decision on Principles for the
5. Significance and Use
Development of International Standards, Guides and Recom-
mendations issued by the World Trade Organization Technical 5.1 Temperature and relative humidity have an influence on
Barriers to Trade (TBT) Committee.
many of the physical properties of leather. Depending on
environmental conditions the moisture content in leather may
2. Referenced Documents
vary significantly. Standardized conditioning in part allows for
reliable comparisons to be made among different leather and
2.1 ASTM Standards:
leather products, and among different laboratories.
D1517 Terminology Relating to Leather
E337 Test Method for Measuring Humidity with a Psy-
6. Apparatus
chrometer (the Measurement of Wet- and Dry-Bulb Tem-
peratures)
6.1 Room, in which the standard atmosphere is automati-
2.2 IU Standards:
cally maintained.
2
IUP/3 Conditioning
6.2 Psychrometer—Eitheraslingpsychrometer,orastation-
ary type psychrometer having the air circulated over the
3. Terminology
thermometer bulbs.
3.1 Definitions:
NOTE 1—It is preferable to draw air over the thermometer bulb rather
3.1.1 For definitions of leather terms used in this practice,
than blow air, from a fan source, over them. Heat from the fan may cause
refer to Terminology D1517.
errors in the readings.
3.1.2 standard atmospheric conditions—for leather and
6.3 Thermometers—The thermometers should conform ap-
leather testing, one of two sets of conditions:
proximatelytothefollowingrequirements:range0to52°C(32
(1) atemperatureof23 62°C(73.4 63.6°F)andarelative
to 122 °F); graduation 0.2°C (0.5°F). They should be matched
humidity of 50 64%
to within 0.1°C (0.25°F) throughout the range used. Calibrate
thermometer in accordance with manufacturer’s instructions.
1
This practice is under the jurisdiction ofASTM Committee D31 on Leather and
NOTE 2—Under ordinary conditions, an error of 1 % in relative
is the direct responsibility of Subcommittee D31.07 on Physical Properties. This
humidity corresponds to an error of approximately 0.1°C (0.2°F) in the
practice was developed in cooperation with the American Leather Chemists Assn.
wet-bulb depression.
Current edition approved Oct. 1, 2018. Published October 2018. Originally
approved in 1984. Last previous edition approved in 2013 as D1610 – 01 (2013).
6.4 Chamber for maintaining 65 % relative humidity—A
DOI: 10.1520/D1610-18.
2
relative humidity of 65 6 2 % at 20 6 2°C can be maintained
Journal of the Society of Leather Trades’ Chemists, Vol XLII, No. 12, pp
386–387. in a closed space by the use of a saturated solution of certain
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
D1610 − 18
3
NOTE6—Thewet-bulbtemperature,T ,indegreesCelsiuscorrespond-
salts in water (in which the solid phase is present in excess) or
w
ing to a relative humidity of 50 % at a given air temperature, t, in degrees
a sulfuric acid solution. The solution should be placed in a
Celsius (dry-bulb) an
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: D1610 − 01 (Reapproved 2013) D1610 − 18
Standard Practice for
1
Conditioning Leather and Leather Products for Testing
This standard is issued under the fixed designation D1610; 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.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope
1.1 This practice covers the conditioning of all units and specimens of leather and leather products prior to testing and the
conditions under which they should be tested. This practice does not apply to wet blue.
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 safety, health, and healthenvironmental practices and determine the
applicability of regulatory limitations prior to use.
1.3 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
2.1 ASTM Standards:
D1517 Terminology Relating to Leather
E337 Test Method for Measuring Humidity with a Psychrometer (the Measurement of Wet- and Dry-Bulb Temperatures)
2.2 IU Standards:
2
IUP/3 Conditioning
3. Terminology
3.1 Definitions:
3.1.1 For definitions of leather terms used in this practice, refer to Terminology D1517.
3.1.2 standard atmospheric conditions—for leather and leather testing, one of two sets of conditions:
(1) a temperature of 23 6 2°C (73.4 6 3.6°F and a relative humidity of 50 6 4 %
(1) a temperature of 23 6 2°C (73.4 6 3.6°F) and a relative humidity of 50 6 4 %
(2) a temperature of 20 6 2°C (68.0 6 3.6°F) and a relative humidity of 65 6 4 %.
(2) a temperature of 20 6 2°C (68.0 6 3.6°F) and a relative humidity of 65 6 4 %.
Condition set (1) is used as the standard for leather testing in North America and condition set (2) is used as the standard for
leather testing in Europe and Japan.
4. Summary of Test Method
4.1 The conditioning prescribed in this practice is designed to obtain reproducible test results on leather and leather products
by the standardization of the relative humidity and temperature conditions to which the leather or leather product is subjected prior
to and during testing.
5. Significance and Use
5.1 Temperature and relative humidity have an influence on many of the physical properties of leather. Depending on
environmental conditions the moisture content in leather may vary significantly. Standardized conditioning in part allows for
reliable comparisons to be made among different leather and leather products, and among different laboratories.
1
This practice is under the jurisdiction of ASTM Committee D31 on Leather and is the direct responsibility of Subcommittee D31.07 on Physical Properties. This practice
was developed in cooperation with the American Leather Chemists Assn.
Current edition approved May 1, 2013Oct. 1, 2018. Published May 2013October 2018. Originally approved in 1984. Last previous edition approved in 20072013 as
D1610 – 07.D1610 – 01 (2013). DOI: 10.1520/D1610-01R13.10.1520/D1610-18.
2
Journal of the Society of Leather Trades’ Chemists, Vol XLII, No. 12, pp 386–387.Journal of the Society of Leather Trades’ Chemists, Vol XLII, No. 12, pp 386–387.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
D1610 − 18
6. Apparatus
6.1 Room, in which the standard atmosphere is automatically maintained.
6.2 Psychrometer—Either a sling psychrometer, or a stationary type psychrometer having the air circulated over the
thermometer bulbs.
NOTE 1—It is preferable to draw air over the thermometer bulb rather than blow air, from a fan source, over them. Heat from the fan may cause errors
in the readings.
6.3 Thermometers—The thermometers should conform approximately to the following requirements: range 0 to 52°C (32 to 122
°F); graduation 0.2°C (0.5°F). They should be matched to within 0.1°C (0.25°F) throughout the range used. Calibrate thermometer
in accordance with manufacture
...
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