ASTM D5427-09
(Practice)Standard Practice for Accelerated Aging of Inflatable Restraint Fabrics
Standard Practice for Accelerated Aging of Inflatable Restraint Fabrics
SIGNIFICANCE AND USE
For inflatable restraints, practices for conducting accelerated aging are designed to determine the aggravated effects on a fabric from exposures to heat, humidity, or ozone, or a combination thereof. These environmental conditions may also be cycled in combination. The four accelerated aging procedures of concern to the design and manufacture of inflatable restraints are referred to as cycle aging, heat aging, humidity aging, and ozone aging.
The environmental conditions described in this practice are designed to allow restraints so that reliable comparisons may be made between different fabrics and different laboratories.
In order to achieve precise and reliable physical property comparisons of different fabrics, it is necessary to control accurately the humidity, temperature, ozone, and cycling conditions to which the fabric is subjected.
Fabric specimens are configured in accordance with the requirements of test methods to be conducted on the specimens subsequent to accelerated aging.
Unless otherwise specified by agreement between the purchaser and the supplier, this practice shall constitute the conditions, procedures, and equipment by which inflatable restraint fabrics are conditioned and aged. It is intended to be used as a guideline in establishing a written material specification. The specification or agreement of the purchaser and the supplier may deviate from the practices described herein when (based on experience) considerations of fabric properties, material handling equipment, or inflatable restraint system design dictate otherwise.
SCOPE
1.1 This practice describes the procedures for the accelerated aging of inflatable restraint fabrics when required as a preparatory step for other test methods.
1.1.1 In Section 7, this practice lists four methods for conducting accelerated aging that are of concern to the design and manufacture of inflatable restraints. They are as follows:
DescriptionSection Cycle aging (Option “A” or “B”)8.4 Heat aging (Option “A” or “B”)8.6 Humidity aging (Option “A” or “B”)8.7 Ozone aging8.8
1.2 This practice may be used in conjunction with other ASTM test methods when subsequent tests of physical properties are required of aged fabric specimens.
1.3 Procedures and apparatus other than those stated in this practice may be used by agreement between the purchaser and the supplier with the specific deviations from the standard practice acknowledged in the report.
1.4 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 independently of the other.
1.5 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.
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Designation:D5427 −09
StandardPractice for
1
Accelerated Aging of Inflatable Restraint Fabrics
This standard is issued under the fixed designation D5427; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope E145 Specification for Gravity-Convection and Forced-
Ventilation Ovens
1.1 This practice describes the procedures for the acceler-
2.2 Military Standard:
ated aging of inflatable restraint fabrics when required as a
MIL-STD-810E Environmental Testing and Engineering
preparatory step for other test methods.
3
Guidelines
1.1.1 In Section 7, this practice lists four methods for
conducting accelerated aging that are of concern to the design
3. Terminology
and manufacture of inflatable restraints. They are as follows:
Description Section 3.1 For all terminology relating to D13.20, Inflatable
restraints, refer to Terminology E145.
Cycle aging (Option “A” or “B”) 8.4
3.1.1 The following terms are relevant to this standard:
Heat aging (Option “A” or “B”) 8.4.3.1
Humidity aging (Option “A” or “B”) 8.7 accelerated ageing, envirionmental conditions, inflatable
Ozone aging 8.8
restraint, standard atmosphere for testing textiles
1.2 This practice may be used in conjunction with other
3.2 For all other terms related to textiles, see Terminology
ASTM test methods when subsequent tests of physical prop-
D123.
erties are required of aged fabric specimens.
1.3 Procedures and apparatus other than those stated in this 4. Summary of Practice
practice may be used by agreement between the purchaser and
4.1 After conditioning in the standard atmosphere for test-
the supplier with the specific deviations from the standard
ing textiles, test specimens are subjected to accelerated aging
practice acknowledged in the report.
for heat, humidity, ozone, or cycling.
1.4 The values stated in either SI units or inch-pound units
4.2 Aged specimens are then reconditioned in the standard
are to be regarded separately as standard. The values stated in
atmosphere for testing textiles for subsequent testing of the
each system are not exact equivalents; therefore, each system
physical properties of inflatable restraint fabrics.
must be used independently of the other.
1.5 This standard does not purport to address all of the 5. Significance and Use
safety concerns, if any, associated with its use. It is the
5.1 For inflatable restraints, practices for conducting accel-
responsibility of the user of this standard to establish appro-
erated aging are designed to determine the aggravated effects
priate safety and health practices and determine the applica-
on a fabric from exposures to heat, humidity, or ozone, or a
bility of regulatory limitations prior to use.
combinationthereof.Theseenvironmentalconditionsmayalso
be cycled in combination. The four accelerated aging proce-
2. Referenced Documents
dures of concern to the design and manufacture of inflatable
2
2.1 ASTM Standards:
restraints are referred to as cycle aging, heat aging, humidity
D123Terminology Relating to Textiles
aging, and ozone aging.
D1776Practice for Conditioning and Testing Textiles
5.2 The environmental conditions described in this practice
D6799Terminology Relating to Inflatable Restraints
are designed to allow restraints so that reliable comparisons
may be made between different fabrics and different laborato-
1
ThispracticeisunderthejurisdictionofASTMCommitteeD13onTextilesand
ries.
is the direct responsibility of Subcommittee D13.20 on Inflatable Restraints.
5.3 In order to achieve precise and reliable physical prop-
Current edition approved Jan. 15, 2009. Published February 2009. Originally
approved in 1993. Last previous edition approved in 2008 as D5427–08. DOI:
erty comparisons of different fabrics, it is necessary to control
10.1520/D5427-09.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
3
Standards volume information, refer to the standard’s Document Summary page on AvailablefromtheDefensePrintingOffice,Building4D,700RobbinsAvenue,
the ASTM website. Philadelphia, PA 19111-5093.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
D5427−09
accurately the humidity, temperature, ozone, and cycling con- 8. Procedure
ditions to which the fabric is subjected.
8.1 Condition fabric specimens in the standard atmosphere
for testing textiles for 24 h and configure them in accordance
5.4 Fabric specimens are configured in accordance with the
with the test method
...
This document is not anASTM standard and is intended only to provide the user of anASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation:D5427–08 Designation: D 5427 – 09
Standard Practice for
1
Accelerated Aging of Inflatable Restraint Fabrics
This standard is issued under the fixed designation D5427; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope
1.1 Thispracticedescribestheproceduresfortheacceleratedagingofinflatablerestraintfabricswhenrequiredasapreparatory
step for other test methods.
1.1.1 In Section 7, this practice lists four methods for conducting accelerated aging that are of concern to the design and
manufacture of inflatable restraints. They are as follows:
Description Section
Cycle aging 8.4
Cycle aging (Option “A” or “B”) 8.4
Heat aging 8.5
Heat aging (Option “A” or “B”) 8.6
Humidity aging 8.6
Humidity aging (Option “A” or “B”) 8.7
Ozone aging 8.7
Ozone aging 8.8
1.2 This practice may be used in conjunction with otherASTM test methods when subsequent tests of physical properties are
required of aged fabric specimens.
1.3 Procedures and apparatus other than those stated in this practice may be used by agreement between the purchaser and the
supplier with the specific deviations from the standard practice acknowledged in the report.
1.4 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 independently of the other.
1.5 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.
2. Referenced Documents
2
2.1 ASTM Standards:
D123 Terminology Relating to Textiles
D1776 Practice for Conditioning and Testing Textiles
D6799 Terminology Relating to Inflatable Restraints
E145 Specification for Gravity-Convection and Forced-Ventilation Ovens
2.2 Military Standard:
3
MIL-STD-810E Environmental Testing and Engineering Guidelines
3. Terminology
3.1 For all terminology relating to D13.20, Inflatable restraints, refer to Terminology D6799.
3.1.1 The following terms are relevant to this standard: accelerated ageing, envirionmental conditions, inflatable restraint,
standard atmosphere for testing textiles
3.2 For all other terms related to textiles, see Terminology D123.
1
This practice is under the jurisdiction of ASTM Committee D13 on Textiles and is the direct responsibility of Subcommittee D13.20 on Inflatable Restraints .
Current edition approved July 1, 2008. Published July 2008. Originally approved in 1993. Last previous edition approved in 2007 as D5427–03(2007).
Current edition approved Jan. 15, 2009. Published February 2009. Originally approved in 1993. Last previous edition approved in 2008 as D5427–08.
2
ForreferencedASTMstandards,visittheASTMwebsite,www.astm.org,orcontactASTMCustomerServiceatservice@astm.org.For Annual Book ofASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Available from the Defense Printing Office, Building 4D, 700 Robbins Avenue, Philadelphia, PA 19111-5093.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1
---------------------- Page: 1 ----------------------
D5427–09
4. Summary of Practice
4.1 Afterconditioninginthestandardatmospherefortestingtextiles,testspecimensaresubjectedtoacceleratedagingforheat,
humidity, ozone, or cycling.
4.2 Agedspecimensarethenreconditionedinthestandardatmospherefortestingtextilesforsubsequenttestingofthephysical
properties of inflatable restraint fabrics.
5. Significance and Use
5.1 For inflatable restraints, practices for conducting accelerated aging are designed to determine the aggravated effects on a
fabric from exposures to heat, humidity, or ozone, or a combination thereof. These environmental conditions may also be cycled
incombination.Thefouracceleratedagingproceduresofconcerntothedesignandmanufactureofinflatablerestraintsarereferred
to as cycle aging, heat aging, humidity aging, and ozone aging.
5.2 The environmental conditions described in this practice are designed to allow restraints so that reliable comparisons may
be made between different fabrics and different laboratories.
5.3 In order to achieve
...
This document is not anASTM standard and is intended only to provide the user of anASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation:D5427–08 Designation: D 5427 – 09
Standard Practice for
1
Accelerated Aging of Inflatable Restraint Fabrics
This standard is issued under the fixed designation D5427; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope
1.1 Thispracticedescribestheproceduresfortheacceleratedagingofinflatablerestraintfabricswhenrequiredasapreparatory
step for other test methods.
1.1.1 In Section 7, this practice lists four methods for conducting accelerated aging that are of concern to the design and
manufacture of inflatable restraints. They are as follows:
Description Section
Cycle aging 8.4
Cycle aging (Option “A” or “B”) 8.4
Heat aging 8.5
Heat aging (Option “A” or “B”) 8.6
Humidity aging 8.6
Humidity aging (Option “A” or “B”) 8.7
Ozone aging 8.7
Ozone aging 8.8
1.2 This practice may be used in conjunction with otherASTM test methods when subsequent tests of physical properties are
required of aged fabric specimens.
1.3 Procedures and apparatus other than those stated in this practice may be used by agreement between the purchaser and the
supplier with the specific deviations from the standard practice acknowledged in the report.
1.4 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 independently of the other.
1.5 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.
2. Referenced Documents
2
2.1 ASTM Standards:
D123 Terminology Relating to Textiles
D1776 Practice for Conditioning and Testing Textiles
D6799 Terminology Relating to Inflatable Restraints
E145 Specification for Gravity-Convection and Forced-Ventilation Ovens
2.2 Military Standard:
3
MIL-STD-810E Environmental Testing and Engineering Guidelines
3. Terminology
3.1 For all terminology relating to D13.20, Inflatable restraints, refer to Terminology D6799.
3.1.1 The following terms are relevant to this standard: accelerated ageing, envirionmental conditions, inflatable restraint,
standard atmosphere for testing textiles
3.2 For all other terms related to textiles, see Terminology D123.
1
This practice is under the jurisdiction of ASTM Committee D13 on Textiles and is the direct responsibility of Subcommittee D13.20 on Inflatable Restraints .
Current edition approved July 1, 2008. Published July 2008. Originally approved in 1993. Last previous edition approved in 2007 as D5427–03(2007).
Current edition approved Jan. 15, 2009. Published February 2009. Originally approved in 1993. Last previous edition approved in 2008 as D5427–08.
2
ForreferencedASTMstandards,visittheASTMwebsite,www.astm.org,orcontactASTMCustomerServiceatservice@astm.org.For Annual Book ofASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Available from the Defense Printing Office, Building 4D, 700 Robbins Avenue, Philadelphia, PA 19111-5093.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1
---------------------- Page: 1 ----------------------
D5427–09
4. Summary of Practice
4.1 Afterconditioninginthestandardatmospherefortestingtextiles,testspecimensaresubjectedtoacceleratedagingforheat,
humidity, ozone, or cycling.
4.2 Agedspecimensarethenreconditionedinthestandardatmospherefortestingtextilesforsubsequenttestingofthephysical
properties of inflatable restraint fabrics.
5. Significance and Use
5.1 For inflatable restraints, practices for conducting accelerated aging are designed to determine the aggravated effects on a
fabric from exposures to heat, humidity, or ozone, or a combination thereof. These environmental conditions may also be cycled
incombination.Thefouracceleratedagingproceduresofconcerntothedesignandmanufactureofinflatablerestraintsarereferred
to as cycle aging, heat aging, humidity aging, and ozone aging.
5.2 The environmental conditions described in this practice are designed to allow restraints so that reliable comparisons may
be made between different fabrics and different laboratories.
5.3 In order to achieve
...
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