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ASTM D1814-70(2021)

(Test Method)

Standard Test Method for Measuring Thickness of Leather Units

Standard Test Method for Measuring Thickness of Leather Units

SIGNIFICANCE AND USE
4.1 This test method is designed for the routine measurement of the thickness of leather units as a means of production control and determining conformance to specifications. It utilizes a secondary type of gage that is capable of rapid measurement.
SCOPE
1.1 This test method covers the measurement of the thickness of units of all types of leather. It is not suitable for measuring the thickness of test specimens.  
1.2 The thickness of leather units may be reported in millimetres, ounces, or irons. Ounces are generally used when referring to the thickness of shoe upper leather. Irons are generally used when referring to the thickness of sole leather. (One ounce equals 1/64 in. or 0.0156 in. or 0.396 mm. One iron equals 1/48 in. or 0.0208 in. or 0.53 mm.)  
1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.  
1.4 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.  
1.5 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.

General Information

Status
Published
Publication Date
31-Aug-2021
ICS
59.140.30 - Leather and furs
Technical Committee
D31 - Leather
Drafting Committee
D31.07 - Physical Properties
Current Stage
Ref Project

Relations

Refers
ASTM D1813-13 - Standard Test Method for Measuring Thickness of Leather Test Specimens
Effective Date
01-May-2013
Refers
ASTM D1813-00(2010) - Standard Test Method for Measuring Thickness of Leather Test Specimens
Effective Date
01-Oct-2010
Refers
ASTM D1813-00(2005) - Standard Test Method for Measuring Thickness of Leather Test Specimens
Effective Date
01-Apr-2005
Refers
ASTM D1813-00 - Standard Test Method for Measuring Thickness of Leather Test Specimens
Effective Date
10-May-2000

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ASTM D1814-70(2021) - Standard Test Method for Measuring Thickness of Leather UnitsASTM D1814-70(2021) - Standard Test Method for Measuring Thickness of Leather Units
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ASTM D1814-70(2021) - Standard Test Method for Measuring Thickness of Leather Units
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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.
Designation: D1814 − 70 (Reapproved 2021)
Standard Test Method for
Measuring Thickness of Leather Units
This standard is issued under the fixed designation D1814; 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 3. Terminology
3.1 Definitions:
1.1 This test method covers the measurement of the thick-
ness of units of all types of leather. It is not suitable for 3.1.1 unit—a piece of leather in the form in which it is
purchased, such as a single hide, skin, or part thereof; or a
measuring the thickness of test specimens.
single fabricated-leather article in the form in which it is
1.2 The thickness of leather units may be reported in
purchased, such as a counter, a pair of shoes, a gasket, etc.
millimetres, ounces, or irons. Ounces are generally used when
referring to the thickness of shoe upper leather. Irons are
4. Significance and Use
generally used when referring to the thickness of sole leather.
(One ounce equals ⁄64 in. or 0.0156 in. or 0.396 mm. One iron 4.1 This test method is designed for the routine measure-
ment of the thickness of leather units as a means of production
equals ⁄48 in. or 0.0208 in. or 0.53 mm.)
control and determining conformance to specifications. It
1.3 The values stated in inch-pound units are to be regarded
utilizes a secondary type of gage that is capable of rapid
as standard. The values given in parentheses are mathematical
measurement.
conversions to SI units that are provided for information only
and are not considered standard.
5. Specimen
1.4 This standard does not purport to address all of the
5.1 The specimen for measurement shall be the full unit.
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
6. Apparatus
priate safety, health, and environmental practices and deter-
mine the applicability of regulatory limitations prior to use. 6.1 Gage, Spring-Type, graduated in 0.1 mm or 0.5 oz,
having a flat presser foot 0.4 6 0.025 in. (10.2 6 0.6 mm) in
1.5 This international standard was developed in accor-
dance with internationally recognized principles on standard- diameter and a flat anvil 0.4 6 0.025 in. (10.2 6 0.6 mm) in
diameter. The spring shall exert a force of 1 lbf (4.45 N) on the
ization established in the Decision on Principles for the
Development of International Standards, Guides and Recom- foot when the gage reads 2 oz, and 2 lbf (8.9 N) when the gage
reads 12 oz.
mendations issued by the World Trade Organization Technical
Barriers to Trade (TBT) Committee.
6.2 Gage, Standard Wedge-Type, having the two legs gradu-
1 1
ated alternatively from 1 to 14 and from 1 ⁄2 to 13 ⁄2 iron,
2. Referenced Documents
enclosing an angle of about 4° and 0.425 6 0.005 mm thick,
preferably made from stainless steel.
2.1 ASTM Standards:
D1813 Test Method for Measuring Thickness of Leather
7. Procedure
Test Specimens
7.1 Leather Other than Sole Leather—Place the portion of
thespecimentobemeasuredbetweentheanvilandpresserfoot
1 of the spring-type gage (6.1) in such a manner that the
This test method is under the jurisdiction ofASTM Committee D31 on Leather
andisthedirectresponsibilityofSubcommittee D31.07 onPhysicalProperties.This
specimen is in contact with the whole area of the anvil. With
test method was developed in cooperation with the American Leather Chemists
the specimen held in this position, compress the thumb lever of
Assn. (Standard Method E3–1963).
the gage so that the gage reads approximately 15 oz.Allow the
Current edition approved Sept. 1, 2021. Published October 2021. Originally
thumb to slide off the lever so that the gage presser foot snaps
approved in 1960. Last previous edition approved in 2015 as D1814–70(2015).
DOI: 10.1520/D1814-70R21.
onto the leather. Read the thickness to the nearest 0.1 mm or
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
estimate it to the nearest ⁄4 oz. Measure the thickness at not
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
less than five approximately equally spaced places along and
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. approximately 6 in. (150 mm) from the backbone. Space the
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA
...

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