1.1 These test methods cover four options for measuring fabric length and are applicable to full rolls or bolts of materials. 1.2 There are four approved options of measuring length as follows: 1.2.1 These test methods cover four options for measuring fabric length and are applicable to full rolls or bolts of materials. There are four approved options of measuring length as follows: option A - hand, option B - drum, option C - clock, and option D -