ISO 10256-3:2016

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.