9.3.5 Record the distance (W) over

9.3.5 Record the distance (W) over which warp counts were taken to the nearest 0.1 cm (1/}s in.). Record the distance (L)over which filling counts were taken to the nearest 0.1 cm (1/}sin.). 9.4 Count by Raveling口ptions-When individual yarns cannot be readily distinguished visually for counting in a fabric, one of the two alternative options shown below may be used. 9.4.1 Ravel a piece of fabric parallel to the direction to be counted, obtain a straight edge, then ravel and count the yarns in a 2.5 cm (1 in.) strip. For example, cut a strip of fabric from each randomly selected place, approximately 3.5 cm (1.5 in.) wide, and of practical length parallel to the yarns to be counted.Then ravel each strip to give a testing width of 2.5 cm (1 in.) by removing an approximately equal number of yarns from each side, prior to counting. 9.4.2 Make a straight cut through the fabric across the yarns to be counted. Place a ruler along the cut edge and mark off a 2.5 cm (1 in.) length. Count the number of yarns protruding between the two marks. If possible, ravel a yarn or two, to ensure that only protruding yarns are being counted. 9.4.3 Record the distance (W) over which end counts were taken to the nearest 0.1 cm (1/}s in.). Record the distance (L) over which pick counts were taken to the nearest 0.1 cm (1/}sin.).10. Calculation 10.1 For each place counted, calculate, to the nearest whole number, the number of yarns per centimeter (inch), using thefollowing equations: Counts}W=yarns/cm (in.)(1) Counts}/W=yarns/cm (in.) (2)where:CountW=number of ends counted in the width direction,W=Distance over which end count was taken, cm (in.),CountL=number of picks counted in the length direction, and丁内、4[C(卜fl .1I=distance over which pick count was taken, (in.).Examples:20 ends/0.6 cm=33 ends/cm 100 picks/2.5 cm=40 picks/cmNote that counts reported in yarns/cm and those reportedyarns/in. may not be exact conversions and may have differ-ent levels of accuracy due to rounding. 10.2 Calculate the average number of ends/cm (ends/in.) to the nearest individual yarn for each roll and for the lot. 10.3 Calculate the average number of picks/cm (picks/in.) to the nearest individual yarn for each roll and for the lot. 10.4 When requested, calculate the thread count of the fabric as the sum of the end and pick counts per cm (in.) to the nearest whole number for each roll and for the lot.