ASTM D6116-18
(Test Method)Standard Test Method for Blocking
Standard Test Method for Blocking
ABSTRACT
This test method establishes the standard procedure for determining the resistance of leather to blocking under specific conditions of temperature, humidity, and pressure. This method is not applicable to wet blue. This procedure requires the use of a forced circulating hot air oven, American Medical Museum jar with lid, Petri dish with cover, and weights.
SCOPE
1.1 This test method covers the determination of the resistance of leather to blocking under specific conditions of temperature, humidity, and pressure. This test method does not apply to wet blue.
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.4 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
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: D6116 − 18
Standard Test Method for
1
Blocking
This standard is issued under the fixed designation D6116; 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 3.4 Weight, 2000 g.
1.1 This test method covers the determination of the resis- 3.5 Perspirometer, consisting of a number of glass plates
tance of leather to blocking under specific conditions of which can be kept in suitable compression loading frame. Any
temperature, humidity, and pressure. This test method does not other apparatus may be used, provided it gives the same
apply to wet blue. results; for example, the AATCC perspirometer tester as
described in AATCC TM15, which is commercially available.
1.2 The values stated in SI units are to be regarded as
standard. No other units of measurement are included in this
4. Test Specimen
standard.
4.1 Test four specimens per sample with dimensions of 2.5
1.3 This standard does not purport to address all of the
by 10 cm. Two samples shall be parallel to the backbone, and
safety concerns, if any, associated with its use. It is the
two samples perpendicular to the backbone. If material is
responsibility of the user of this standard to establish appro-
limited, one specimen per direction is suitable.
priate safety, health, and environmental practices and deter-
mine the applicability of regulatory limitations prior to use.
5. Procedure
1.4 This international standard was developed in accor-
5.1 The specimen shall be perforated 2 mm from one end
dance with internationally recognized principles on standard-
and hung on a standard size paper clip that has been opened to
ization established in the Decision on Principles for the
its full length. No more than five specimens shall be hung on
Development of International Standards, Guides and Recom-
one clip. The clip holding the specimen shall be set into the
mendations issued by the World Trade Organization Technical
indentations of the jar. No more than three clips shall be placed
Barriers to Trade (TBT) Committee.
in a jar. The jar shall be filled with distilled/deionized water at
23 6 2°C to a level no higher than 1.25 cm from the bottom of
2. Referenced Documents
the hanging specimen. The lid shall then be placed on the jar
2
2.1 AATCC Standard:
and the specimen allowed to condition for 4 h.
AATCC TM15 Colorfastness to Perspiration
5.2 After conditioning, the 2.5 by 10 cm specimen shall be
3. Apparatus
removed from the jar and immediately folded finish to finish to
form a 2.5 by 5 cm rectangle. If the leather is unable to be
3.1 Forced Circulating Hot Air Oven, capable of maintain-
folded upon itself (too thick or stiff), it may be cut to 2.5 by 5
ing 80 6 3°C.
cm sections and placed finish to finish. Follow Method 1 or
3.2 American Medical Museum Jar (with Lid), having inner 3
Method 2 from this section forward.
dimensions of 16 cm high, 10 cm long, and 8 cm wide. There
5.3 Method 1 (Petri Dish Method):
shall be three indentations at the top of each 8 cm side. Other
5.3.1 The folded specimen shall then be placed in an
glass containers similar in size may be used, provided they give
inverted (rim up) petri dish cover. The bottom plate of the dish
the same result.
shall then be placed concentrically within the inverted cover
3.3 Petri Dish, 100 by 15 mm, with cover.
plate so as to cover the specimen evenly.
5.3.2 A2000 g weight shall be placed on top of the inverted
1 bottom plate. The whole assembly shall then be placed in an
This test method is under the jurisdiction ofASTM Committee D31 on Leather
and is the direct responsibility of Subcommittee D31.05 on Upholstery. oven at 80 6 3°C for 2 h and then removed. The weight and
Current edition approved Nov. 1, 2018. Published December 2018. Originally
cover plate shall be removed from the assembly and the
approved in 1997. Last previous edition approved in 2016 as D6116 – 00 (2016).
specimen allowed to cool for 30 min.
DOI: 10.1520/D6116-18.
2
Available from American Association of Textile Chemists and Colorists
(AATCC), P.O. Box 12215, Research Triangle Park, NC 27709-2215, http://
3
www.aatcc.org. DoD has only adopted Method 1.
Copyright ©ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA19428-2959. United States
1
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D6116 − 18
5.3.3 The cooled and folded specimen shall be examined by 5.4.3 It is possible to test several specimens stacked up on
slowly pulling the fold apart by hand. The specimen shall be one another simultan
...
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: D6116 − 00 (Reapproved 2016) D6116 − 18
Standard Test Method for
1
Blocking
This standard is issued under the fixed designation D6116; 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 test method covers the determination of the resistance of leather to blocking under specific conditions of temperature,
humidity, and pressure. This test method does not apply to wet blue.
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this 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 safety, health, and healthenvironmental practices and determine the
applicability of regulatory limitations prior to use.
1.4 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
2.1 AATCC Standard:
AATCC TM15 Colorfastness to Perspiration
3. Apparatus
3.1 Forced Circulating Hot Air Oven, capable of maintaining 80 6 3°C.
3.2 American Medical Museum Jar (with Lid), having inner dimensions of 16 cm high, 10 cm long, and 8 cm wide. There shall
be three indentations at the top of each 8 cm side. Other glass containers similar in size may be used, provided they give the same
result.
3.3 Petri Dish, 100 by 15 mm, with cover.
3.4 Weight, 2000 g.
3.5 Perspirometer, consisting of a number of glass plates which can be kept in suitable compression loading frame. Any other
apparatus may be used, provided it gives the same results; for example, the AATCC perspirometer tester as described in AATCC
TM15, which is commercially available.
4. Test Specimen
4.1 Test one rectangular four specimens per sample with dimensions of 2.5 by 10 cm specimen per sample.cm. Two samples
shall be parallel to the backbone, and two samples perpendicular to the backbone. If material is limited, one specimen per direction
is suitable.
5. Procedure
5.1 The specimen shall be perforated 2 mm from one end and hung on a standard size paper clip that has been opened to its
full length. No more than five specimens shall be hung on one clip. The clip holding the specimen shall be set into the indentations
1
This test method is under the jurisdiction of ASTM Committee D31 on Leather and is the direct responsibility of Subcommittee D31.05 on Upholstery.
Current edition approved Sept. 1, 2016Nov. 1, 2018. Published October 2016December 2018. Originally approved in 1997. Last previous edition approved in 20102016
as D6116 – 00 (2010).(2016). DOI: 10.1520/D6116-00R16.10.1520/D6116-18.
2
Available from American Association of Textile Chemists and Colorists (AATCC), P.O. Box 12215, Research Triangle Park, NC 27709-2215, http://www.aatcc.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
D6116 − 18
of the jar. No more than three clips shall be placed in a jar. The jar shall be filled with tapdistilled/deionized water at 23 6 2°C
to a level no higher than 1.25 cm from the bottom of the hanging specimen. The lid shall then be placed on the jar and the specimen
allowed to condition for 4 h.
5.2 After conditioning, the 2.5 by 10 cm specimen shall be removed from the jar and immediately folded grainfinish to
grainfinish to form a 2.5 by 5 cm rectangle. The folded specimen shall then be placed in an inverted (rim up) petri dish cover. The
bottom plate of the If the leather is unable to be folded upon itself (too thick or stiff), it may be cut to 2.5 by 5 cm sections and
3
placed finish to finish. Follow Method 1 or Method 2 from this section forward.dish shall then be placed concentrically within the
inverted cover plate so as to cover the specimen evenly.
5.3 A 2000 g weight shall be placed on top of the inverted bottom plate. The whole assembly shall then be placed in an oven
at
...
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