1.1 This practice is a listing of the test methods commonly employed in determining the physical properties of fabrics and yarns used in the manufacture of inflatable restraints.
1.2 Fabrics used in the manufacture of inflatable restraints may be coated or uncoated, and may be comprised of spun yarns, continuous filament yarns, or a combination thereof.
1.3 Fabrics used in the manufacturer of inflatable restraints may be either flat or one piece woven. For the one-piece woven, follow the sampling section of D5446 and the individual test method.
1.4 In Section 9, this practice lists is alphabetical order the procedures associated with conducting physical testing of the following fabric or yarn properties of concern to the design and manufacture of inflatable restraints. Yarn Section Denier (Yarn Number)
9.3.1 Fiber Content
9.3.2 Finish (Extractable Material)
9.3.3 Strength and Elongation
9.3.4 Twist
9.3.5 Fabric Air Permeability
9.3.6 Abrasion Resistance
9.3.7 Blocking
9.3.8 Bow and Skew
9.3.9 Breaking Force & Elongation
9.3.10 Burst Strength
9.3.11 Coating Adhesion
9.3.12 Coating Weight
9.3.13 Count of Woven Fabric
9.3.14 Dynamic Air Permeability
9.3.28 Edgecomb Resistance
9.3.29 Flammability
9.3.15 Fogging (Volatility)
9.3.16 Length
9.3.17 Mass per Unit Area
9.3.18 Non-Fibrous Material
9.3.19 Odor
9.3.20 Packability
9.3.30 pH
9.3.21 Stiffness
9.3.22 Tear Strength
9.3.23 Thickness
9.3.24 Warp Size Content & Residual Sizing
9.3.25 Width
9.3.26 Sewing Thread
9.3.27
1.5 This practice may be used in conjunction with Practice D5427 which prescribes standard practices for the accelerated aging of inflatable restraint fabrics when comparative results of physical properties before and after accelerated aging are required.
1.6 Procedures and apparatus other than those stated in this practice may be used by agreement of purchaser and supplier with the specific deviations from the standard practice acknowledged in the report.
1.7 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not exact equivalents; therefore, each system must be used independent of the other.
1.8 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. See Note 3.
ASTM D5446-08(2013) Referenced Document
ASTM D1059 Standard Test Method for Yarn Number Based on Short-Length Specimens
ASTM D123 Standard Terminology Relating to Textiles*, 2023-09-14 Update
ASTM D1388 Standard Test Method for Stiffness of Fabrics
ASTM D1422/D1422M Standard Test Method for Twist in Single Spun Yarns by the Untwist-Retwist Method*, 2020-02-01 Update
ASTM D1423 Standard Test Method for Twist in Yarns by Direct-Counting
ASTM D1424 Standard Test Method for Tearing Strength of Fabrics by Falling-Pendulum Type (Elmendorf) Apparatus
ASTM D1777 Standard Test Method for Thickness of Textile Materials*, 2019-07-01 Update
ASTM D1907 Standard Test Method for Linear Density of Yarn (Yarn Number) by the Skein Method
ASTM D204 Standard Test Methods for Sewing Threads
ASTM D2256 Standard Test Method for Tensile Properties of Yarns by the Single-Strand Method
ASTM D2257 Standard Test Method for Extractable Matter in Textiles
ASTM D2261 Standard Test Method for Tearing Strength of Fabrics by the Tongue (Single Rip) Procedure (Constant-Rate-of-Extension Tensile Testing Machine)
ASTM D276 Standard Test Methods for Identification of Fibers in Textiles*, 2024-04-21 Update
ASTM D3773 Standard Test Methods for Length of Woven Fabric
ASTM D3774 Standard Test Method for Width of Textile Fabric
ASTM D3775 Standard Test Method for Fabric Count of Woven Fabric
ASTM D3776 Standard Test Methods for Mass Per Unit Area (Weight) of Fabric
ASTM D3786 Standard Test Method for Bursting Strength of Textile Fabricsx2014;Diaphragm Bursting Strength Tester Method*, 2024-04-21 Update
ASTM D3882 Standard Test Method for Bow and Skew in Woven and Knitted Fabrics
ASTM D3990 Standard Terminology Relating to Fabric Defects
ASTM D4032 Standard Test Method for Stiffness of Fabric by the Circular Bend Procedure
ASTM D4157 Standard Test Method for Abrasion Resistance of Textile Fabrics (Oscillatory Cylinder Method)*, 2022-11-01 Update
ASTM D4851 Standard Test Methods for Coated and Laminated Fabrics for Architectural Use
ASTM D5034 Standard Test Method for Breaking Strength and Elongation of Textile Fabrics (Grab Test)
ASTM D5427 Standard Practice for Accelerated Aging of Inflatable Restraint Fabrics
ASTM D5587 Standard Test Method for Tearing Strength of Fabrics by Trapezoid Procedure
ASTM D6476 Standard Test Method for Determining Dynamic Air Permeability of Inflatable Restraint Fabrics*, 2021-07-01 Update
ASTM D6478 Standard Test Method for Determining Specific Packability of Fabrics Used in Inflatable Restraints*, 2019-01-01 Update
ASTM D6479 Standard Test Method for Determining the Edgecomb Resistance of Woven Fabrics Used in Inflatable Restraints*, 2020-02-15 Update
ASTM D6613 Standard Practice for Determining the Presence of Sizing in Nylon or Polyester Fabric*, 2019-01-01 Update
ASTM D6799 Standard Terminology Relating to Inflatable Restraints*, 2023-09-14 Update
ASTM D737 Test Method for Air Permeability of Textile Fabrics
ASTM D751 Standard Test Methods for Coated Fabrics
ASTM F778 Standard Methods for Gas Flow Resistance Testing of Filtration Media*, 2023-01-01 Update
ASTM D5446-08(2013) history
2019ASTM D5446-08(2019) Standard Practice for Determining Physical Properties of Fabrics, Yarns, and Sewing Thread Used in Inflatable Restraints
2013ASTM D5446-08(2013) Standard Practice for Determining Physical Properties of Fabrics, Yarns, and Sewing Thread Used in Inflatable Restraints
2008ASTM D5446-08 Standard Practice for Determining Physical Properties of Fabrics, Yarns, and Sewing Thread Used in Inflatable Restraints
2002ASTM D5446-02(2007) Standard Practice for Determining Physical Properties of Fabrics, Yarns, and Sewing Thread Used in Inflatable Restraints
2002ASTM D5446-02 Standard Practice for Determining Physical Properties of Fabrics, Yarns, and Sewing Thread Used in Inflatable Restraints
2001ASTM D5446-01 Standard Practice for Determining Physical Properties of Fabrics, Yarns, and Sewing Thread Used in Inflatable Restraints
1999ASTM D5446-99 Standard Practice for Determining Physical Properties of Fabrics, Yarns, and Sewing Thread Used in Inflatable Restraints