ISO 10256-3:2016 specifies performance requirements and test methods for face protectors (including visors) for use in ice hockey and is intended to be used in conjunction with ISO 10256-1.Requirements and the corresponding test methods, where appropriate, are given for the following:a) construction and area of coverage;b) resistance to puck impact;c) penetration;d) field of vision;e) geometric (visual) optics and acuity;f) transmittance and haze;g) marking and information.ISO 10256-3:2016 applies to face protectors worn by- players other than goalkeepers, and- certain functionaries (e.g. referees).NOTE 1 The requirements of a Clause take precedent over a figure.NOTE 2 The intent is to reduce the risk of injury to the face without compromising the form or appeal of the game.