ASTM-D5822 2008(Redline)

$26.65

D5822-08 Standard Test Method for Determining Seam Strength in Inflatable Restraint Cushions (Redline)

Published By	Publication Date	Number of Pages
ASTM	2008	7

Guaranteed Safe Checkout

Category: ASTM

If you have any questions, feel free to reach out to our online customer service team by clicking on the bottom right corner. We’re here to assist you 24/7.
Email:[email protected]

Description

Significance and Use

Seam strength testing is used for design validation and for lot acceptance.

This test method constitutes the conditions, procedures, and equipment by which inflatable restraints are tested for seam strength and seam efficiency. It is intended to be used as a guideline in establishing a written part specification or print. The specification or agreement of purchaser and supplier may deviate from the procedures described herein when (based on experience) considerations of equipment, cushion design, or other factors dictate otherwise.

In cases of 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 perform 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 from the same lot of fabric to be evaluated, which utilize a like seam assembly (or standard seam assembly) to achieve seam interaction. The test specimens should then be randomly assigned in equal numbers to each laboratory for testing. If a bias is found, either its cause must be determined and corrected, or the purchaser and supplier must agree to interpret future test results in light of the known bias.

Test Method D 5822 is a reliable test method but procedures which may require special attention are identified in the precision and bias section of this test method.

1. Scope

1.1 This test method covers the measurement of seam efficiency and the maximum seam strength in inflatable restraint cushions composed of woven fabrics when a force is applied perpendicular to the seam, using a grab test. For evaluating sewing thread, refer to Test Method D 204.

1.2 This test method is restricted to seams that are obtained from an inflatable restraint cushion. Seams may include but are not limited to sewn, OPW, glued, fused (chemically or thermally).

1.3 This test method is used when the measurement of a resistance to a specified force, a breaking force, a minimum elongation, or a combination thereof are required to determine the seam strength, or seam integrity of a particular fabric for inflatable restraint use.

1.4 Procedures and apparatus other than those stated in this standard may be used

Additional information

Standard Title	D5822-08 Standard Test Method for Determining Seam Strength in Inflatable Restraint Cushions (Redline)
Published Code	ASTM
Publication Date	2008
Pages Count	7

Preview PDF


PDF Format	Searchable	Printable	Preview Now

ASTM-D5822 2008(Redline)

Related products