ASTM D6116-00(2016)
(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 and health practices and determine the applicability of regulatory limitations prior to use.
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Standards Content (Sample)
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Designation: D6116 − 00 (Reapproved 2016)
Standard Test Method for
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 indentations of the jar. No more than three clips shall be placed
in a jar. The jar shall be filled with tap water at 23 6 2°C to a
1.1 This test method covers the determination of the resis-
level no higher than 1.25 cm from the bottom of the hanging
tance of leather to blocking under specific conditions of
specimen. The lid shall then be placed on the jar and the
temperature, humidity, and pressure. This test method does not
specimen allowed to condition for 4 h.
apply to wet blue.
4.2 After conditioning, the specimen shall be removed from
1.2 The values stated in SI units are to be regarded as
the jar and immediately folded grain to grain to form a 2.5 by
standard. No other units of measurement are included in this
5 cm rectangle. The folded specimen shall then be placed in an
standard.
inverted (rim up) petri dish cover. The bottom plate of the dish
1.3 This standard does not purport to address all of the
shall then be placed concentrically within the inverted cover
safety concerns, if any, associated with its use. It is the
plate so as to cover the specimen evenly.
responsibility of the user of this standard to establish appro-
4.3 A 2000 g weight shall be placed on top of the inverted
priate safety and health practices and determine the applica-
bottom plate. The whole assembly shall then be placed in an
bility of regulatory limitations prior to use.
oven at 80 6 3°C for 2 h and then removed. The weight and
2. Apparatus
cover plate shall be removed from the assembly and the
specimen allowed to cool for 30 min.
2.1 Forced Circulating Hot Air Oven, capable of maintain-
ing 80 6 3°C.
4.4 The cooled and folded specimen shall be examined by
slowly pulling the fold apart by hand. The specimen shall be
2.2 American Medical Museum Jar (with Lid), having inner
examined for ease of separation, grain damage, and finish
dimensions of 16 cm high, 10 cm long, and 8 cm wide. There
peeling.
shall be three indentations at the top of each 8 cm side.
2.3 Petri Dish, 100 by 15 mm, with cover. 5. Report
5.1 Report resistance of specimen to blocking by the fol-
2.4 Weight, 2000 g.
lowing scale:
3. Test Specimen
1—Pass. No blocking.
2—Fail. Finish peeling.
3.1
...
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 2010) D6116 − 00 (Reapproved 2016)
Standard Test Method for
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 and health practices and determine the applicability of regulatory
limitations prior to use.
2. Apparatus
2.1 Forced Circulating Hot Air Oven, capable of maintaining 80 6 3°C.
2.2 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.
2.3 Petri Dish, 100 by 15 mm, with cover.
2.4 Weight, 2000 g.
3. Test Specimen
3.1 Test one rectangular 2.5 by 10 cm specimen per sample.
4. Procedure
4.1 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
of the jar. No more than three clips shall be placed in a jar. The jar shall be filled with tap 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.
4.2 After conditioning, the specimen shall be removed from the jar and immediately folded grain to grain 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 dish shall
then be placed concentrically within the inverted cover plate so as to cover the specimen evenly.
4.3 A2000A 2000 g weight shall be placed on top of the inverted bottom plate. The whole assembly shall then be placed in an
oven at 80 6 3°C for 2 h and then rem
...
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