ASTM D580-99 pdf free

04-13-2021 comment

ASTM D580-99 pdf free.Standard Specification for Greige Woven Glass Tapes and Webbings.
Determine the weave type as directed in SpecificationD 579 using one test specimen from each of the rolls in thelaboratory sample.Determine the length per unit mass in yards per poundor tex of the tape or webbing as directed in Test MethodD 1059, using a skein length of 2 m (2 yd) for each specimenand three specimens from each of the selected rolls in thelaboratory sample except:A length of tape or webbing 2.5 m (21/ yd) long fromeach laboratory sample shall be smoothly laid on a flat surfaceusing sufficient tension to keep the sample flat.A specimen 2 m(2 yd) long shall be accurately measured from the center of thispiece and cut off with a sharp instrument. The 2 m (2 yd)specimen shall then be weighed.Determine the thickness of the tape or webbing as directed in Test Method D 1777 using ten test specimens fromeach roll in the laboratory sample and using the gage with a presser foot with a diameter of 6.35 0.03 mm (0.25 0.001 in.) that is weighted to apply a total load of 5.5 0.5 N, unlessotherwise specified.
Determine the breaking strength in newtons or pounds-force of tape or webbing in the warp direction as directed inTest Method D 5035,excluding preconditioning using fivespecimens from each of the rolls in the laboratory sample.Testtapes and webbings 38 mm (1 1/ in.) and under in width in fullwidth.
Determine the width of the tape or webbing as directedin Test Methods D 3774,Option A,and the free of tensionprocedure,except that five measurements per roll shall bemade on each of the rolls in the lot sample.
Measure the length of each roll in the lot sample asdirected in Test Methods D 3773 using any one of the fouroptional procedures. Verify that none of the sample rolls doesnot contain more than the allowable number of pieces.Total theyardages for each of the rolls measured and compare the totalto the total of the yardages specified on the identification labelsfor those rolls.In case of dispute, use Option A of Test MethodsD 3773 to resolve the dispute.
Determine the ignition loss as directed in Test MethodD 4963, unless otherwise agreed to between the purchaser andthe supplier.
Determine the visual appearance as directed in Speci-fication D 579 on each of the rolls in the lot sample.ASTM D580 pdf download.

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