ISO 23537-2-2016 pdf download.Requirements for sleeping bags一 Part 2: Fabric and material properties.
3.2 Filling material
3.2.1 Feather and/or down
3.2.1.1 ComposItion
The composition of the filling material shall be determined in accordance with EN 12934.
3.2.1.2 Hygienic state
The filling material shall conform to the requirements according to EN 12935.
3.2.1.3 Filling power
The filling power shall be tested in accordance with EN 12130.
The deviation of the filling power from the declared nominal value shall be <5 %. 3.2.1.4 Filling material mass The filling material mass, in g. shall be measured according to EN 13088. The deviation of the filling material mass from the declared nominal value shall be <7 %. 3.2.2 Filling material other than feather and/or down — Mass per unit area The mass per unit area, in g/m2, shall be measured according to EN 29073-1. The deviation of the mass per unit area from the declared nominal value shall be <7 %. 3.3 Finished articles 3.3.1 Inside dimensions 3.3.1.1 Inside length To enable labelling of the sleeping bag, the inside length of the sleeping bag shall be measured within ±3 cm. The measurement is made by turning the sleeping bag inside out and measuring the length from the position of the seam where the heel of the foot is placed to the top of the sleeping bag (excluding any vertical components of the hood), without applying any force to extend the sleeping bag length. 3.3.1.2 Maximum inside width To enable labelling of the sleeping bag, the maximum inside width shall be measured within ±2 cm. The measurement is made by turning the sleeping bag inside out and measuring the circumference at the widest point without stretching the fabric. If the maximum inside width of the sleeping bag is not in the chest area, then the position of the widest point of the sleeping bag shall be indicated on the label. The circumference is halved to provide the width of the sleeping bag. lithe sleeping bag has elastic seams, a force of (10 ± 1) N may be used to extend these seams prior to measurement, for instance by using a spring balance.ISO 23537-2 pdf download.