Detail of GB/T 41526.1-2022

Introduction of GB/T 41526.1-2022

Protective equipment for sports - Protective equipment for winter sports - Part 1: Safety requirements and testing methods for helmets of alpine skiers and snowboarders 1 Scope This document specifies the safety requirements, marking and packaging, and requirements for product instructions in connection with helmets of alpine skiers and snowboarders, and describes the testing methods related to the safety requirements. This document is applicable to the safety performance testing during the design, production and sale of helmets worn by alpine skiers and snowboarders (hereinafter referred to as "helmets"). 2 Normative references The following documents contain requirements which, through reference in this text, constitute indispensable requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition (including any amendments) applies. GB/T 191-2008 Packaging - Pictorial marking for handling of goods GB 18401-2010 National general safety technical code for textile products GB 20400-2006 Leather and fur - Limit of harmful matter GB 24429-2009 Sports helmets - Safety requirements and testing methods for sports helmets for cyclists and users of skateboards and roller skates 3 Terms and definitions For the purposes of this document, the terms and definitions given in GB 24429-2009, as well as the following, apply. 3.1 helmets of alpine skiers and snowboarders item to be worn on the head, intended to absorb the energy of a foreseeable impact, thus reducing the risk of injury to the head   3.2 shell outer layer which provides part of the whole general form of the helmet [Source: GB 24429-2009, 3.2] 3.3 retention system complete assembly by means of which the helmet is maintained in position on the head, including any devices for adjustment of the system or strap to enhance the wearer's comfort [Source: GB 24429-2009, 3.5] 3.3.1 strap part of the retention system that passes under the wearer's chin to keep the helmet in position, excluding the chin padding [Source: adapted from GB 24429-2009, 3.6] 3.3.2 chin buckle device arranged near the chin to adjust the tightness of the strap 3.4 testing headform benchmark model of the head built by simulating the appearance structure of human head using standard human body size 3.5 basic plane of the human head plane at the level of the center of the external ear openings and the lower edge of the right (or left) eye socket Note: See plane O-O' in Figure 1. Key: 1——plane O-O’; 2——the center of the external ear openings; 3——the lower edge of the right (or left) eye socket. Figure 1 Side view of the basic plane of the human head (O-O') [Source: adapted from GB 24429-2009, 3.7] 3.6 basic plane of the testing headform plane relative to the testing headform that corresponds to the basic plane of the human head Note: As shown in Figure 2. Dimensions in millimeters Headform size a X Y 540 23±0.5 87±0.5 560 25±0.5 95±0.5 580 27±0.5 103±0.5 600 30±0.5 110±0.5 a The tolerance is ±1%. Key: 1——reference plane of the testing headform; 2——basic plane of the testing headform; X——the distance between the reference plane and basic plane of the testing headform; Y——the distance from the reference plane of the testing headform to the top of the testing headform. Figure 2 Reference plane and basic plane of the testing headform 3.7 reference plane of the testing headform plane on the headform, with a distance (X) above and parallel to the basic plane of the testing headform, where such distance (X) is determined by the headform size Note: See Figure 2. 3.8 headform size length of the curve formed by the intersection of the reference plane and the outer surface of the headform, which can be divided into standard headforms in four sizes Note: See Figure 2. 3.9 protection class different helmet classes determined with reference to skiing venues and intensity 3.10 coverage area minimum area on the corresponding testing headform wrapped by the helmet

Contents of GB/T 41526.1-2022

Foreword i Introduction ii 1 Scope 2 Normative references 3 Terms and definitions 4 Specification and classification 4.1 Specification 4.2 Classification 5 Safety requirements 5.1 Structure 5.2 Mass (including accessories) 5.3 Visual fields 5.4 Coverage area 5.5 Testing area 5.6 Stability of the retention system 5.7 Strength performance of the retention system 5.8 Impact energy absorption performance 5.9 Puncture resistance 5.10 Safety performance of textile components 5.11 Safety performance of leather components 6 Testing methods 6.1 Conditioning 6.2 Structure inspection 6.3 Mass inspection 6.4 Inspection for visual field 6.5 Inspection for coverage area 6.6 Inspection for testing area 6.7 Stability test of the retention system 6.8 Strength performance test of the retention system 6.9 Impact energy absorption performance test 6.10 Puncture resistance test 6.11 Safety performance test of textile components 6.12 Safety performance test of leather components 7 Marking, packaging and product instructions 7.1 Marking 7.2 Packaging 7.3 Product instructions Bibliography