CSA Z94.3:2015 pdf download.Eye and face protectors
1.1 CSA Z94.3 applies to eye and face protectors used in all occupational and educational operations or processes involving hazards to the eyes or face. Typical hazards include flying objects and particles,splashing liquids, molten metal, and ultraviolet, visible, and infrared radiation, but do not include X-rays,gamma rays, high-energy particulate radiation, radioactive materials, or masers.
Note: The guidelines for protection outlined in Annex A should be followed when similar potentially hazardous activities are conducted in the home, at leisure, and in recreational environments. For certain sports activities,other Standards should be consulted (e.g., CSA 2262.2).
1.2 This Standard sets minimum performance requirements in the tests described herein but does not cover factors of design such as comfort, service life, or appearance.
Note: The conformance of protectors with these requirements does not imply equality of performance, nor should it be interpreted to mean that protectors are capable of affording greater protection than is specified in this Standard.
1.3 In this Standard,“shall" is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the standard; "should" is used to express a recommendation or that which is advised but not required; and "may" is used to express an option or that which is permissible within the limits of the standard.
Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying a clause is to separate from the text explanatory or informative material.
Notes to tables and figures are considered part of the table or figure and may be written as requirements.
6.1.3.1 Except as specified in Clause 6.1.3.2, the test for impact resistance shall be either the impact of a 6.00±0.05 mm diameter steel ball travelling at a speed of 50.9±0.5 m/s or a 6.35±0.05 mm diameter steel ball travelling at a speed of 46.5±0.5 m/s . The test shall be performed in accordance with Clause 12.2.2. No contact with either eye of the headform shall be permitted, nor shall any part become detached from the inner surface of the protector, nor shall the protector fail as defined below:
a) lens failure: a lens shall be considered to have failed if it fractures through its entire thickness into two or more separate pieces, or if any lens material visible to normal or corrected-to-normal vision,including a laminar layer, if any, becomes detached from the ocular surface (see Annex F for exemplars); or
b) housing failure: housing (such as a front, side shield, frame, body, lift-front, or lens holder) shall be considered to have failed if parts or fragments that could contact either eye of the headform are ejected from the protector.CSA Z94.3 pdf download.