香港六合彩开奖 18527-3:2020
2020-10
香港六合彩开奖 18527-3:2020
Resumen
This document specifies requirements and test methods for eyewear intended for surface swimming only. It contains requirements for eyewear for both recreational and specialist competitive swimming. It deals with materials, construction, optical properties and test methods.
Requirements for the labelling and marking of swimming eyewear and for information to be supplied by the manufacturer are also specified.
Eyewear intended for surface swimming conforming to the requirements of this standard are suitable for surface use and shallow diving only, e.g. from the edge of a pool, and are not suitable for wear when diving from a high board.
This document applies to eyewear that include
a) non-prescription nominally plano or afocal lenses,
b) non-prescription mass-produced corrective lenses, and
c) prescription lenses.
Ciclo de vida
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Ahora
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00
Preliminar
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10
Propuesta
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20
笔谤别辫补谤补肠颈贸苍
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30
颁辞尘颈迟茅
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40
Consulta
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50
础辫谤辞产补肠颈贸苍
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60
笔耻产濒颈肠补肠颈贸苍
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90
搁别惫颈蝉颈贸苍
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95
Retirada
Modificaciones
Aportan contenido adicional; disponible para su compra; no incluidas en el texto de la norma existente.En desarrollo香港六合彩开奖 18527-3:2020/DAmd 1
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00
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