ASTM D6797-02

Standard Test Method for Bursting Strength of Fabrics Constant-Rate-of-Extension (CRE) Ball Burst Test

SCOPE
1.1 This test method describes the measurement for bursting strength of woven and knitted textiles taken from rolls of fabric or fabric taken from garments.
Note 1—For the measurement of bursting strength with a hydraulic testing machine, refer to Test Method D 3786.
1.2 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.

General Information

• Status: Historical
• Publication Date: 09-Apr-2002
• ICS: 59.080.30 - Textile fabrics
• Technical Committee: D13 - Textiles
• Drafting Committee: D13.59 - Fabric Physical Test Methods A

Relations

• Replaced By: ASTM D6797-07 - Standard Test Method for Bursting Strength of Fabrics Constant-Rate-of-Extension (CRE) Ball Burst Test
• Effective Date: 01-Jul-2007
• Referred By: ASTM F3510-21 - Standard Guide for Characterizing Fiber-Based Constructs for Tissue-Engineered Medical Products
• Effective Date: 10-Apr-2002
• Referred By: ASTM D4850-23 - Standard Terminology Relating to Fabrics and Fabric Test Methods
• Effective Date: 10-Apr-2002
• Referred By: ASTM D5432-12(2019) - Standard Performance Specification for Blanket Products for Institutional and Household Use
• Effective Date: 10-Apr-2002
• Referred By: ASTM D7268-23 - Standard Performance Specification for Seamless Knit Garments Including Intimates and Swimwear
• Effective Date: 10-Apr-2002
• Referred By: ASTM D5378-12(2019) - Standard Performance Specification for Woven and Knitted Shower Curtains for Institutional and Household Use
• Effective Date: 10-Apr-2002
• Referred By: ASTM F3354-19 - Standard Guide for Evaluating Extracellular Matrix Decellularization Processes
• Effective Date: 10-Apr-2002
• Referred By: ASTM D3787-16(2020) - Standard Test Method for Bursting Strength of Textiles—Constant-Rate-of-Traverse (CRT) Ball Burst Test
• Effective Date: 10-Apr-2002
• Referred By: ASTM D3786/D3786M-18(2023) - Standard Test Method for Bursting Strength of Textile Fabrics—Diaphragm Bursting Strength Tester Method
• Effective Date: 10-Apr-2002
• Referred By: ASTM D3995-23 - Standard Performance Specification for Knitted Career Apparel Fabrics: Dress and Vocational
• Effective Date: 10-Apr-2002
• Referred By: ASTM D4769-12(2018)e1 - Standard Specification for Woven and Warp Knitted Comforter Fabrics
• Effective Date: 10-Apr-2002
• Referred By: ASTM D5433-12(2019) - Standard Performance Specification for Towel Products for Institutional and Household Use
• Effective Date: 10-Apr-2002
• Referred By: ASTM D3996-23 - Standard Performance Specification for Knit Swimwear Fabrics
• Effective Date: 10-Apr-2002

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:D6797–02
Standard Test Method for
Bursting Strength of Fabrics Constant-Rate-of-Extension
(CRE) Ball Burst Test
This standard is issued under the fixed designation D 6797; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope 3.1.2 constant-rate-of-extension tensile testing machine
(CRE), n—a testing machine in which the rate of increase of
1.1 Thistestmethoddescribesthemeasurementforbursting
the specimen length is uniform with time.
strengthofwovenandknittedtextilestakenfromrollsoffabric
3.1.3 fabric, n—in textiles, planar structure consisting of
or fabric taken from garments.
yarns or fibers.
NOTE 1—For the measurement of bursting strength with a hydraulic
3.2 For definitions of other textile terms used in this method
testing machine, refer to Test Method D 3786.
refer to Terminology D 123.
1.2 This standard does not purport to address all of the
4. Summary of Test Method
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
4.1 Setup the tensile tester for performing the ball burst test
priate safety and health practices and determine the applica-
in accordance with the manufacture’s instructions.Aspecimen
bility of regulatory limitations prior to use.
of the fabric is securely clamped to the CRE machine without
tension to the ball burst attachment. A force is exerted against
2. Referenced Documents
the specimen by a polished, hardened steel ball until rupture
2.1 ASTM Standards:
occurs.
D 76 Specification for Tensile Testing Machines for Tex-
5. Significance and Use
tiles
D 123 Terminology Relating to Textiles
5.1 This method is used to determine the force required to
D 1776 Practice for Conditioning Textiles for Testing
rupture textile fabric by forcing a steel ball through the fabric
D 3786 Test Method for Hydraulic Bursting Strength of
with a constant-rate-of-extension tensile tester.
Knitted Goods and Nonwoven Fabrics—Diaphragm
5.2 This is a new method and therefore the history of data is
Bursting Strength Tester Method
very small, however the agreement of within- laboratory data
D 3787 Test Method for Bursting Strength of Knitted
suggest this method may be considered for acceptance testing
Goods—Constant Rate of Traverse (CRT) Ball Burst Test
of commercial shipments with caution.
5.2.1 If there are differences of practical significance be-
3. Terminology
tween reported test results for two laboratories (or more),
3.1 Definitions:
comparative test should be performed to determine if there is a
3.1.1 bursting strength, n—the force or pressure required to
statistical bias between them, using competent statistical assis-
rupture a textile by distending it with a force, applied at right
tance. As a minimum, samples used for such comparative test
angles to the plane of the fabric, under specified conditions.
should be as homogeneous as possible, drawn from the same
3.1.1.1 Discussion—The angle of application of force, and
lot of material as the samples that resulted in disparate results
the area of the fabric upon which the force is applied varies
during initial testing, and randomly assigned in equal numbers
continuously as the fabric stretches when it is tested as directed
to each laboratory. Other fabrics with established test values
in this method.
may also be used for these comparative test. The test results
from the laboratories involved should be compared using a
statistical test for unpaired data, at a probability level chosen
This test method is under the jurisdiction ofASTM Committee D13 onTextiles
prior to the testing series. If bias is found, either its cause must
and is the direct responsibility of Subcommittee D13.59 on Fabric Test Methods,
be found and corrected, or future test results for that fabric
General.
Current edition approved April 10, 2002. Published July 2002.
must be adjusted in consideration of the known bias.
Annual Book of ASTM Standards, Vol 07.01.
Annual Book of ASTM Standards, Vol 07.02.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
D6797–02
6. Apparatus 8. Conditioning
8.1 Bring the specimens (or laboratory samples) from the
6.1 Tensile Testing Machine , of the constant-rate-of- exten-
prevailing atmosphere to moisture equilibrium for testing
sion (CRE) type.
textiles in the standard atmosphere for testing as prescribed in
6.2 Ball-Burst Attachment , consisting of a clamping
Practice D 1776.
mechanism to hold the test specimen and a steel ball attached
to the moveable member of the tensile tester.
9. Procedure
6.2.1 The polished steel ball shall have a diameter of 25.400
9.1 Unless otherwise specified, make all tests on samples
6 0.005 mm (1.0000 6 0.0002 in.) and shall be spherical
conditioned in the standard atmosphere for testing as specified
within 0.005 mm (0.0002 in.). The ring clamp shall have an
in 8.1.
internal diameter of 44.450 6 0.025 mm (1.750 6 0.001 in.).
9.2 Place the specimen without tension in the ring clamp
and fasten securely. Start the CRE machine and maintain a
7. Sampling, Selection, and Number of Specimens
speed of 305 6 13 mm/min (12 6 0.5 in./min). Continue that
7.1 Primary Sampling Unit—Consider rolls, bolts or pieces
speed until the specimen bursts. Record to the nearest 5 N (1.0
offabric,orcartonsoffabriccomponentsoffabricatedsystems
lbf) the ball-bursting strength of the specimen.
such as garments to be the primary sampling unit, as appli-
10. Report
cable.
7.2 Laboratory Sampling Unit—As a laboratory sampling
10.1 State that the specimens were tested as directed in Test
unit take from the primary sampling unit at least one full-width
Method D 6797. Describe the material or product sampled, and
piece of fabric that is1m(1yd)in length along the selvage
the method of sampling used.
(machine direction), after removing the first1m(1yd) length.
10.2 Report the bursting strength of each specimen and the
For circular knit fabrics cut a band at least 300 mm (12 in.)
average bursting strength of the five specimens from each
wide. When applicable, use
...