ASTM D1611-12

Standard Test Method for Corrosion Produced by Leather in Contact with Metal

SIGNIFICANCE AND USE
The procedure is primarily intended to evaluate chrome leather intended for use in hydraulic systems under circumstances where metal corrosion is a serious factor. A high relative humidity is used for the purpose of accelerating the results.
SCOPE
1.1 This test method covers the qualitative and quantitative determination of corrosion produced by leather in contact with metal. This test method does not apply to wet blue.
1.2 The values stated in inch-pound units are to be regarded as the standard.
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.

General Information

• Status: Historical
• Publication Date: 31-Mar-2012
• ICS: 59.140.30 - Leather and furs
• Technical Committee: D31 - Leather
• Drafting Committee: D31.01 - Vegetable Leather

Relations

• Replaces: ASTM D1611-00(2010) - Standard Test Method for Corrosion Produced by Leather in Contact with Metal
• Effective Date: 01-Apr-2012
• Replaced By: ASTM D1611-12(2019) - Standard Test Method for Corrosion Produced by Leather in Contact with Metal
• Effective Date: 01-Apr-2019

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: D1611 − 12
Standard Test Method for
1
Corrosion Produced by Leather in Contact with Metal
This standard is issued under the fixed designation D1611; 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 Department of Defense.
1. Scope metalsurfaceshallbeconsideredascorrosion.Inthelattercase
and for quantitative purposes, the corrosion level should be
1.1 This test method covers the qualitative and quantitative
assessed by determination of the mass changes which occur in
determination of corrosion produced by leather in contact with
the metal panel.
metal. This test method does not apply to wet blue.
3.1.2 staining—a discoloration of the metal surface after
1.2 The values stated in inch-pound units are to be regarded
contact with a leather specimen, which discoloration is caused
as the standard.
by minor amounts of leather—metal interreaction products
1.3 This standard does not purport to address all of the
formedonthemetalsurface.Suchstainsshouldreadilybuffoff
safety concerns, if any, associated with its use. It is the
the metal surface without permanent marring of its surface
responsibility of the user of this standard to establish appro-
appearance.
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use.
4. Summary of Test Method
4.1 A conditioned piece of leather and two plates of the
2. Referenced Documents
same metal are dipped in a noncorrosive oil and drained to the
2
2.1 ASTM Standards:
drippoint.Theyarestackedtogetherunderaloadof25 65lbf
D91 Test Method for Precipitation Number of Lubricating
(111 6 22 N) and placed in a desiccator containing a relative
Oils
humidity of 90 to 95 % at 73.5 6 2°F (23 6 1°C) for a period
3
2.2 Military Standard:
of 14 days. For quantitative purposes, the metal plates are
MIL-H-6083 (latest revision) Hydraulic Fluid, Petroleum
weighed before and after the test.
Base, for Preservation and Operation
5. Significance and Use
3. Terminology
5.1 The procedure is primarily intended to evaluate chrome
3.1 Definitions:
leather intended for use in hydraulic systems under circum-
3.1.1 corrosion—a modification of the metal surface in
stances where metal corrosion is a serious factor. A high
contact with a leather specimen, evidenced by visible pitting
relative humidity is used for the purpose of accelerating the
and erosion of the metal surface or by a change in mass of the
results.
metal tested in comparison with a blank determination. Any
permanent discoloration in film form on the specimen (metal)
6. Apparatus
that does not readily buff off with a nonabrasive cloth shall be
6.1 Desiccator, containing a saturated solution of ammo-
calledincipientcorrosion,whileanyvisiblepittingofthemetal
nium dihydrogen phosphate.
surface or formation of a layer of reaction products on the
4
6.2 Four Plates of the Metal to Be Tested —The surface
roughness should be 8 to 20 µin (203 to 508 nm) rms finish.
1
This test method is under the jurisdiction ofASTM Committee D31 on Leather
They should be approximately 2 by 4 in. (51 by 102 mm) and
and is the direct responsibility of D31.01 on Vegetable Leather. This test method
of uniform thickness.
was developed in cooperation with theAmerican Leather ChemistsAssn. (Standard
Method E52-1961).
6.3 Mass, 25 65lb(11.3 6 2.3 kg).
Current edition approved April 1, 2012. Published April 2012. Originally
approved in 1958. Last previous edition approved in 2010 as D1611–00 (2010).
DOI: 10.1520/D1611-12.
2 4
For referenced ASTM standards, visit the ASTM website, www.astm.org, or The sole source of supply of the steel test panels-Q Panel QD35, 3 by 5 in.,
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM surface roughness 203–305 nm, known to the committee at this time is The Q Panel
Standards volume information, refer to the standard’s Document Summary page on Company, 15610 Industrial Parkway, Cleveland, OH 44135. If you are aware of
the ASTM website. alternative suppliers, please provide this information to ASTM Headquarters. Your
3
AvailablefromStandardizationDocumentsOrderDesk,Bldg.4SectionD,700 comments will receive careful consideration at a meeting of the responsible
1
Robbins Ave., Philadelphia, PA 19111-5094, Attn: NPODS. technical committee , which you may attend.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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D1611 − 12
6.4 Nonabrasive Cloth—Theclothshouldnotscratchormar 10. Proc
...

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:D1611–00(Reapproved2010) Designation: D1611 – 12
Standard Test Method for
1
Corrosion Produced by Leather in Contact with Metal
This standard is issued under the fixed designation D1611; 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 Department of Defense.
1. Scope
1.1 This test method covers the qualitative and quantitative determination of corrosion produced by leather in contact with
metal. This test method does not apply to wet blue.
1.2 The values stated in inch-pound units are to be regarded as the standard.
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.
2. Referenced Documents
2
2.1 ASTM Standards:
D91 Test Method for Precipitation Number of Lubricating Oils
3
2.2 Military Standard:
MIL-H-6083 (latest revision) Hydraulic Fluid, Petroleum Base, for Preservation and Operation
3. Terminology
3.1 Definitions:
3.1.1 corrosion—amodificationofthemetalsurfaceincontactwithaleatherspecimen,evidencedbyvisiblepittinganderosion
of the metal surface or by a change in mass of the metal tested in comparison with a blank determination. Any permanent
discoloration in film form on the specimen (metal) that does not readily buff off with a nonabrasive cloth shall be called incipient
corrosion, while any visible pitting of the metal surface or formation of a layer of reaction products on the metal surface shall be
considered as corrosion. In the latter case and for quantitative purposes, the corrosion level should be assessed by determination
of the mass changes which occur in the metal panel.
3.1.2 staining—a discoloration of the metal surface after contact with a leather specimen, which discoloration is caused by
minor amounts of leather—metal interreaction products formed on the metal surface. Such stains should readily buff off the metal
surface without permanent marring of its surface appearance.
4. Summary of Test Method
4.1 A conditioned piece of leather and two plates of the same metal are dipped in a noncorrosive oil and drained to the drip
point. They are stacked together under a load of 25 6 5 lbf (111 6 22 N) and placed in a desiccator containing a relative humidity
of 90 to 95 % at 73.5 6 2°F (23 6 1°C) for a period of 14 days. For quantitative purposes, the metal plates are weighed before
and after the test.
5. Significance and Use
5.1 The procedure is primarily intended to evaluate chrome leather intended for use in hydraulic systems under circumstances
where metal corrosion is a serious factor. A high relative humidity is used for the purpose of accelerating the results.
6. Apparatus
6.1 Desiccator, containing a saturated solution of ammonium dihydrogen phosphate.
1
This test method is under the jurisdiction of ASTM Committee D31 on Leather and is the direct responsibility of D31.01 on Vegetable Leather. This test method was
developed in cooperation with the American Leather Chemists Assn. (Standard Method E52-1961).
Current edition approved April 1, 2010.2012. Published May 2010.April 2012. Originally approved in 1958. Last previous edition approved in 20052010 as D1611–00
(2005).(2010). DOI: 10.1520/D1611-00R10.10.1520/D1611-12.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Available from Standardization Documents Order Desk, Bldg. 4 Section D, 700 Robbins Ave., Philadelphia, PA 19111-5094, Attn: NPODS.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

---------------------- Page: 1 ----------------------
D1611 – 12
4
6.2 Four Plates of the Metal to Be Tested —The surface roughness should be 8 to 16 µm20 µin (203 to 406508 nm) rms finish.
They should be approximately 2 by 4 in. (51 by 102 mm) and of uniform thickness.
6.3 Mass,25 65lb(11.3 6 2.3 kg).
6.4 Nonabrasive Cloth—The cloth should not scratch or mar the surface of the metal plates when the plates
...