ISO 4854:1981
$50.70
Personal eye-protectors — Optical test methods
| Published By | Publication Date | Number of Pages |
| ISO | 1981-05 | 20 |
Specifies the optical test methods the requirements for which are given in ISO 4849 to ISO 4853. The other test methods are given in ISO 4855. The following tests are described: test for refractive, astigmatic and prismatic powers, diffusion test, test for quality of material and surface, determination of transmittance. Annex A describes testing of unmounted oculars. Annexes B and C describe two other optional methods for prismatic power measurement.
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