ASTM_D_5430_-_13.pdf

Designation:D543013Standard Test Methods forVisually Inspecting and Grading Fabrics1This standard is issued under the fixed designation D5430;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 These test methods describe a procedure to establish anumerical designation for grading of fabrics from a visualinspection.1.2 These test methods may be used for the delivery andacceptance of fabrics with requirements mutually agreed uponby the purchaser and the supplier.1.3 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:2D123 Terminology Relating to TextilesD3990 Terminology Relating to Fabric DefectsD4850 Terminology Relating to Fabrics and Fabric TestMethods2.2 ANSI Standards:3ANSI/ASQC Standard A1-1978 Definitions,Symbols,Formulas,and Tables for Control ChartsANSI/ASQC Standard Z1.4-1981 Sampling Procedures andTables for Inspection by Attributes.3.Terminology3.1 For all terminology relating to D13.59,Fabric TestMethods,General,refer to Terminology D4850.3.1.1 The following terms are relevant to this standard:critical defect,defect,in inspection and grading,grade,inspection,major defect,minor defect.3.2 For all terminology related to Fabric Defects,refer toTerminology D3990.3.3 For all other terms related to textiles,refer to Terminol-ogy D1234.Summary of Test Method4.1 Rolls or bolts of fabric are visually inspected andindividually graded at an examination station using an agreedupon point system.4.2 Fabric is normally inspected and graded on one sideonly.Certain types of end use fabrics may be inspected andgraded on both sides as agreed upon between the purchaser andsupplier.5.Significance and Use5.1 Test Method D5430 is considered satisfactory for ac-ceptance testing a commercial shipments since the method hasbeen used extensively in the trade for grading of fabric andfabric acceptance determination.5.2 The penalty points obtained in grading the same rolls orbolts of fabric may vary considerably when using each of thethree options listed herein.For this reason,the same pointassignment option should be used in cases of disagreementarising from differences of values reported by the purchaserand the supplier.5.3 If there are differences of practical significance betweenreported test results for two laboratories(or more),compara-tive test should be performed to determine if there is astatistical bias between them,using competent statistical assis-tance.As a minimum,ensure the test samples to be used are ashomogeneous as possible,are drawn from the material fromwhich the disparate test results ere obtained,and are randomlyassigned in equal numbers to each laboratory for testing.Thetest results from the two laboratories should be compared usinga statistical test for unpaired data,at a probability level chosenprior to the testing series.If a bias is found,either its causemust be found and corrected,or future test results for thatmaterial must be adjusted in consideration of the known bias.6.Apparatus6.1 A suitable fabric inspection machine providing a flatviewing area and an interruptible speed controlled fabric1These test methods are under the jurisdiction of ASTM Committee D13 onTextiles and is the direct responsibility of Subcommittee D13.59 on Fabric TestMethods,General.Current edition approved Jan.1,2013.Published January 2013.Originallyapproved in 1993.Last previous edition approved in 2011 as D543007(2011).DOI:10.1520/D5430-13.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.3American Society for Quality Control,310 W.WisconsinAve.,Milwaukee,WS53203.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 rewind.Examination and grading are usually done with over-head direct lighting.The inspection machine may be equippedwith the option of back lighting(transmitted)light providingthe choice by prior agreement depending on the fabric end use.The overhead direct lighting source shall be mounted parallelto the viewing surface so as to illuminate with direct perpen-dicular impinging light rays.The surface illumination levelshall be a minimum of 1075 lux(100 foot candles).6.2 The lighting source should be cool white preheat rapidstart fluorescent lamps with white reflectors and without bafflesor glues,or by agreement between the purchaser and supplier.7.Sampling7.1 With