ASTM D4920-13

Standard Terminology Relating to Conditioning, Chemical, and Thermal Properties (Withdrawn 2022)

SCOPE
1.1 This standard is the compilation of definition of technical terms related to conditioning, chemical, and thermal properties in textiles. Terms that are generally understood or adequately defined in other readily available sources are not included.  
1.2 For other ASTM defined conditioning terms, refer to Terminology E41. For other terms associated with textiles, refer to Terminology D123, Relating to Textiles.
WITHDRAWN RATIONALE
This standard is the compilation of definition of technical terms related to conditioning, chemical, and thermal properties in textiles. Terms that are generally understood or adequately defined in other readily available sources are not included.
Formerly under the jurisdiction of Committee D13 on Textiles, this terminology was withdrawn in January 2022 in accordance with section 10.6.3 of the Regulations Governing ASTM Technical Committees, which requires that standards shall be updated by the end of the eighth year since the last approval date.

General Information

• Status: Withdrawn
• Publication Date: 30-Jun-2013
• Withdrawal Date: 14-Jan-2022
• ICS: 01.040.59 - Textile and leather technology (Vocabularies)
• ICS: 59.080.01 - Textiles in general
• Technical Committee: D13 - Textiles
• Drafting Committee: D13.51 - Conditioning, Chemical and Thermal Properties

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: D4920 − 13
Standard Terminology Relating to
1
Conditioning, Chemical, and Thermal Properties
This standard is issued under the fixed designation D4920; 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.
1. Scope D4772 Test Method for Surface Water Absorption of Terry
Fabrics (Water Flow)
1.1 This standard is the compilation of definition of techni-
cal terms related to conditioning, chemical, and thermal
3. Terminology
properties in textiles. Terms that are generally understood or
adequately defined in other readily available sources are not 3.1 Definitions:
included.
absolute humidity, n—the mass of water vapor present in a
unit volume of air.
1.2 For other ASTM defined conditioning terms, refer to
DISCUSSION—Common units of measure for absolute humidity are
Terminology E41. For other terms associated with textiles,
grams per cubic metre or grains per cubic foot. The amount of water
refer to Terminology D123, Relating to Textiles.
vapor is also reported in terms of mass per unit mass of dry air, for
example,gramsperkilogram,orgrainsperpound,ofdryair.Thisvalue
2. Referenced Documents
differs from values calculated on a volume basis and should not be
2
2.1 ASTM Standards: referred to as absolute humidity. It is designated as humidity ratio,
specific humidity, or moisture pick-up.
D123 Terminology Relating to Textiles
E41 Terminology Relating To Conditioning
absorption, n—aprocessinwhichonematerial(theabsorbent)
D578 Specification for Glass Fiber Strands
takes in or absorbs another (the absorbate); as the absorption
D579 Specification for Greige Woven Glass Fabrics
of moisture by fibers. (See also adsorption. Compare
D580 Specification for Greige Woven Glass Tapes and
desorption and resorption.) D4772
Webbings
D581 Specification for Glass Fiber Greige Braided Tubular accelerated conditioning, n—a process that uses humidity
Sleeving generation and precise temperature controls to rapidly bring
D885/D885M Test Methods for Tire Cords, Tire Cord a textile to equilibrium in a standard atmosphere.
Fabrics, and Industrial Filament Yarns Made from Manu- DISCUSSION—Accelerated conditioning may be achieved in closed
cabinets, rooms or process lines designed such that equilibrium can be
factured Organic-Base Fibers
achieved in a much shorter time, such as 2 to 10 min, compared to
D1776 Practice for Conditioning and Testing Textiles
typical conditioning times.
D1907 Test Method for Linear Density of Yarn (Yarn Num-
ber) by the Skein Method
adsorption, n—a process in which the surface of a solid takes
D2118 Practice forAssigning a Standard Commercial Mois-
on or adsorbs in an extremely thin layer molecules of gases,
ture Content for Wool and its’ Products
of dissolved substances, or of liquids with which it is in
D2494 Test Method for Commercial Mass of a Shipment of
contact. (See also absorption and moisture equilibrium.
Yarn or Manufactured Staple Fiber or Tow
Compare desorption and resorption.)
D2970/D2970M Test Methods for Testing Tire Cords, Tire
atmosphere for testing, n—air at ambient conditions of
Cord Fabrics, and Industrial Yarns Made From Glass
relative humidity and temperature in which tests or experi-
Filaments
ments are conducted. (See also standard atmosphere for
D3887 Specification for Tolerances for Knitted Fabrics
testing.)
DISCUSSION—In the hierarchy of terms, atmosphere is the generic
1
ThisterminologyisunderthejurisdictionofASTMCommitteeD13onTextiles
term where the air is ambient with conditions “controlled” by local
and is the direct responsibility of Subcommittee D13.51 on Conditioning and,
weather and therefore variable. Atmosphere for testing is a delimited
Chemical and Thermal Properties.
term in which the use of the atmosphere is restricted for a certain
Current edition approvedJuly 1, 2013. Published August 2013 . Originally
purpose. In a standard atmosphere for testing, the conditions are
approved in 1989. Last previous edition approved in 2008 as D4920 – 08. DOI:
specified (standardized) and controlled for routine testing and for
10.1520/D4920-13.
testing reproducibility. On this basis, there is no real reason for not
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
referring to the specified atmospheres that have been traditionally used
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
for testing glass textiles or tire cords, etc., as standard atmospheres
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. for testing those materials.
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