ASTM D2118-05
(Practice)Standard Practice for Assigning a Standard Commercial Moisture Content for Wool and its' Products
Standard Practice for Assigning a Standard Commercial Moisture Content for Wool and its' Products
SIGNIFICANCE AND USE
The purpose of this practice is to bring about uniformity of commercial moisture standards in all ASTM specifications relating to wool and its products.
This practice provides a recommended single value for a standardized commercial moisture content for wool and its products. This avoids difficulties encountered in calculating the amount of moisture-free fiber present in a given mass of wool in any one of the forms listed in 1.1.1 to 1.1.8 due to trade practices which recognize various commercial moisture allowance values used by certain segments of the trade. (See Test Method D 584, Section 3.5, Table D1909, Note E, and the Tables in Practice D 2720).
The recommended commercial moisture content should be used where it is desirable to avoid problems in determining moisture-free fiber content when the form of the wool is changed. For example: from scoured wool (12.0 % moisture content) to worsted yarn, dry spun (13.04 % moisture content).
SCOPE
1.1 This practice recommends that a single value be adopted for the commercial moisture content of wool in any of the following forms:
1.1.1 Scoured,
1.1.2 Carbonized and neutralized,
1.1.3 Noils, uncarbonized,
1.1.4 Top, oil or dry combed,
1.1.5 Yarn, worsted,
1.1.6 Yarn, woolen,
1.1.7 Yarn, hand knitting, or
1.1.8 Fabric.
1.2 LimitationsGrease wool, pulled wool, and wool with pH below 5.0 are excluded from this practice.
This standard does not purport to address 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
Relations
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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:D2118–05
Standard Practice for
Assigning a Standard Commercial Moisture Content for
1
Wool and its’ Products
This standard is issued under the fixed designation D 2118; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope 3. Terminology
1.1 Thispracticerecommendsthatasinglevaluebeadopted 3.1 For definitions of textile terms used in this test method:
for the commercial moisture content of wool in any of the carbonized and neutralized wool, commercial moisture con-
following forms: tent, wool, refer to Terminology D 4845.
1.1.1 Scoured, 3.2 Forthedefinitionofwoolandothertextiletermsusedin
1.1.2 Carbonized and neutralized, this practice, refer to Terminology D 123.
1.1.3 Noils, uncarbonized,
4. Significance and Use
1.1.4 Top, oil or dry combed,
4.1 The purpose of this practice is to bring about uniformity
1.1.5 Yarn, worsted,
1.1.6 Yarn, woolen, of commercial moisture standards in all ASTM specifications
relating to wool and its products.
1.1.7 Yarn, hand knitting, or
1.1.8 Fabric. 4.2 This practice provides a recommended single value for
a standardized commercial moisture content for wool and its
1.2 Limitations—Grease wool, pulled wool, and wool with
pH below 5.0 are excluded from this practice. products.Thisavoidsdifficultiesencounteredincalculatingthe
amount of moisture-free fiber present in a given mass of wool
1.3 This standard does not purport to address the safety
concerns, if any, associated with its use. It is the responsibility in any one of the forms listed in 1.1.1 to 1.1.8 due to trade
practices which recognize various commercial moisture allow-
of the user of this standard to establish appropriate safety and
health practices and determine the applicability of regulatory ance values used by certain segments of the trade. (See Test
Method D 584, Section 3.5, Table D 1909, Note E, and the
limitations prior to use.
Tables in Practice D 2720).
2. Referenced Documents
4.3 The recommended commercial moisture content should
2
2.1 ASTM Standards: be used where it is desirable to avoid problems in determining
D 123 Terminology Relating to Textiles moisture-free fiber content when the form of the wool is
D 584 Test Method for Wool Content of Raw Wool— changed. For example: from scoured wool (12.0 % moisture
Laboratory Scale content) to worsted yarn, dry spun (13.04 % moisture content).
D 1909 Table of Commercial Moisture Regains for Textile
5. Recommended Commercial Moisture Content
Fibers
D 2720 Practice for Calculation of Commercial Weight a
...







Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.