IS 1229-1957

标准号：IS 1229-1957
发布日期：1958/8/1 12:00:00
实施日期：1999/12/31 12:00:00
适用范围：1.1 This standard prescribes a method for deter-mination of commercial weight of continuous filament rayon yarn and acetate yarn, and their mixture.1.2 The method prescribed in this standard is generally applicable to continuous filament rayon yarns and acetate yarns or their mixture which have been treated with readily removable lubri-cants and sizes. The method is inapplicable if the yarns have received a special treatment such as synthetic resin or anti-swelling treatment.