ASTM D2969-04(2014)
Standard Test Methods for Steel Tire Cords

Standard No.
ASTM D2969-04(2014)
Release Date
2004
Published By
American Society for Testing and Materials (ASTM)
Latest
ASTM D2969-04(2014)
Scope

5.1 The procedures in Test Methods D2969 for the determination of the properties of steel tire cord and related materials are considered satisfactory for acceptance testing of commercial shipments of such products because the procedures are the best available and have been used extensively in the trade. When a purchaser frequently uses a specific supplier, it is recommended that the two parties investigate the methods to determine if there is any bias between their two laboratories as directed in 5.1.1.

5.1.1 In case of a dispute arising from differences in reported test results when using this test method for acceptance testing of commercial shipments, the purchaser and the supplier should conduct comparative tests to determine if there is a statistical bias between their laboratories. Competent statistical assistance is recommended for the investigation of bias. As a minimum, the two parties should take a group of test specimens that are as homogeneous as possible and that are from a lot of material of the type in question. Test specimens should then be randomly assigned in equal numbers to each laboratory for testing. The average results from the two laboratories should be compared using the appropriate statistical analysis and an acceptable probability level chosen by the two parties before testing is begun. If bias is found, either its cause must be found and corrected or the purchaser and the supplier must agree to interpret future test results with consideration to the known bias.

5.2 The significance and use of particular properties are discussed in the appropriate sections.

1.1 These test methods cover the testing of cords made from steel that are specifically designed for use in the reinforcement of pneumatic tires. By agreement, these test methods may be used to test similar cords or filaments used for reinforcing other rubber products. The steel cords may be wound on spools or beams. The steel cords may also be woven into fabric, in which case they must be removed from the fabric prior to testing.

Note 1—For other methods of testing tire cords and tire cord fabrics, refer to Methods D885, Test Methods D1871, Specifications D122, and Test Methods D2692 and D2970/D2970M. For tolerances on tire cords and tire cord fabrics, refer to Specifications D122 and Methods D885.

1.2 These test methods include test procedures only; they do not establish specifications or tolerances.

1.3 This test method includes the following sections:

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ASTM D2969-04(2014) Referenced Document

  • ASTM D122 Tolerances for Tire Fabrics Other than Tire Cord Fabrics
  • ASTM D123 Standard Terminology Relating to Textiles
  • ASTM D1871 Standard Test Methods for Adhesion of Single-Filament Steel Wire to Rubber
  • ASTM D2229 Standard Test Method for Adhesion Between Steel Tire Cords and Rubber
  • ASTM D2692 Standard Test Method for Air Wicking of Tire Fabrics, Tire Cord Fabrics, Tire Cord, and Yarns
  • ASTM D2904 Standard Practice for Interlaboratory Testing of a Textile Test Method that Produces Normally Distributed Data
  • ASTM D2970/D2970M Standard Test Method for Testing Tire Cords, Tire Cord Fabrics, and Industrial Yarns Made From Glass Filaments
  • ASTM D4393 Standard Test Method for Strap Peel Adhesion of Reinforcing Cords or Fabrics to Rubber Compounds
  • ASTM D6477 Standard Terminology Relating to Tire Cord and Fabrics
  • ASTM D76 Standard Specification for Tensile Testing Machines for Textiles
  • ASTM D885 Standard Test Methods for Tire Cords, Tire Cord Fabrics, and Industrial Filament Yarns Made from Man-Made Organic-Base Fibers
  • ASTM E663 

ASTM D2969-04(2014) history

Standard Test Methods for Steel Tire Cords


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Subject

Section

Adhesion of Steel Cords and Filaments to Elastomers

16

Brass Coating Composition and Mass

14, 15