Standard Test Methods for Visually Inspecting and Grading Fabrics

SIGNIFICANCE AND USE
Test Method D 5430 is considered satisfactory for acceptance testing a commercial shipments since the method has been used extensively in the trade for grading of fabric and fabric acceptance determination.
The penalty points obtained in grading the same rolls or bolts of fabric may vary considerably when using each of the three options listed herein. For this reason, the same point assignment option should be used in cases of disagreement arising from differences of values reported by the purchaser and the supplier.
If there are differences of practical significance between reported test results for two laboratories (or more), comparative test should be performed to determine if there is a statistical bias between them, using competent statistical assistance. As a minimum, ensure the test samples to be used are as homogeneous as possible, are drawn from the material from which the disparate test results ere obtained, and are randomly assigned in equal numbers to each laboratory for testing. The test results from the two laboratories should be compared using a statistical test for unpaired data, at a probability level chosen prior to the testing series. If a bias is found, either its cause must be found and corrected, or future test results for that material must be adjusted in consideration of the known bias.
SCOPE
1.1 These test methods describe a procedure to establish a numerical designation for grading of fabrics from a visual inspection.
1.2 These test methods may be used for the delivery and acceptance of fabrics with requirements mutually agreed upon by the purchaser and the supplier.
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
30-Nov-2004
Technical Committee
Current Stage
Ref Project

Relations

Buy Standard

Standard
ASTM D5430-04 - Standard Test Methods for Visually Inspecting and Grading Fabrics
English language
3 pages
sale 15% off
Preview
sale 15% off
Preview

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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:D5430–04
Standard Test Methods for
1
Visually Inspecting and Grading Fabrics
This standard is issued under the fixed designation D 5430; 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 For definitions of other textile terms used in this test
method, refer to Terminologies D 123 and D 3990.
1.1 These test methods describe a procedure to establish a
numerical designation for grading of fabrics from a visual
4. Summary of Test Method
inspection.
4.1 Rolls or bolts of fabric are visually inspected and
1.2 These test methods may be used for the delivery and
individually graded at an examination station using an agreed
acceptance of fabrics with requirements mutually agreed upon
upon point system.
by the purchaser and the supplier.
4.2 Fabric is normally inspected and graded on one side
1.3 This standard does not purport to address all of the
only. Certain types of end use fabrics may be inspected and
safety concerns, if any, associated with its use. It is the
gradedonbothsidesasagreeduponbetweenthepurchaserand
responsibility of the user of this standard to establish appro-
supplier.
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use.
5. Significance and Use
5.1 Test Method D 5430 is considered satisfactory for
2. Referenced Documents
2
acceptance testing a commercial shipments since the method
2.1 ASTM Standards:
has been used extensively in the trade for grading of fabric and
D 123 Terminology Relating to Textiles
fabric acceptance determination.
D 2905 Practice for Statements on Number of Specimens
5.2 The penalty points obtained in grading the same rolls or
for Textiles
bolts of fabric may vary considerably when using each of the
D 3990 Definition of Terms Relating to Fabric Defects
three options listed herein. For this reason, the same point
D 4849 Terminology Relating to Yarns and Fibers
assignment option should be used in cases of disagreement
D 4850 Terminology Relating to Fabric
3 arising from differences of values reported by the purchaser
2.2 ANSI Standards:
and the supplier.
ANSI/ASQC Standard A1-1978 Definitions, Symbols, For-
5.3 If there are differences of practical significance between
mulas, and Tables for Control Charts
reported test results for two laboratories (or more), compara-
ANSI/ASQC Standard Z1.4-1981 Sampling Procedures and
tive test should be performed to determine if there is a
Tables for Inspection by Attributes.
statistical bias between them, using competent statistical assis-
3. Terminology tance.As a minimum, ensure the test samples to be used are as
homogeneous as possible, are drawn from the material from
3.1 Definitions:
which the disparate test results ere obtained, and are randomly
3.1.1 For definition of textile terms used in this test method:
assigned in equal numbers to each laboratory for testing. The
critical defect; defect, in inspection and grading; grade; inspec-
testresultsfromthetwolaboratoriesshouldbecomparedusing
tion; major defect; minor defect, refer to Terminology D 4850
a statistical test for unpaired data, at a probability level chosen
.
prior to the testing series. If a bias is found, either its cause
must be found and corrected, or future test results for that
1
material must be adjusted in consideration of the known bias.
These test methods are under the jurisdiction of ASTM Committee D13 on
Textiles and is the direct responsibility of Subcommittee D13.59 on Fabric Test
Methods, General. 6. Apparatus
Current edition approved Dec. 1, 2004. Published January 2005. Originally
6.1 A suitable fabric inspection machine providing a flat
approved in 1993. Last previous edition approved in 1993 as D 5430–99
2
viewing area and an interruptible speed controlled fabric
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
rewind. Examination and grading are usually done with over-
Standards volume information, refer to the standard’s Document Summary page on
head direct lighting. The inspection machine may be equipped
the ASTM website.
3 with the option of back lighting (transmitted) light providing
AmericanSocietyforQualityControl,310W.WisconsinAve.,Milwaukee,WS
53203. the choice by prior agreement depending on the fabric end use.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

---------------------- Page: 1 ----------------------
D5430–04
The overhead direct lighting source shall be mounted parallel options of assign
...

Questions, Comments and Discussion

Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.