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ophthalmic instruments refractor heads scopethis standard binocular visual function heads instruments refractor 5-layer co-extrusion film ground ball handling/fixed ball hittingsingle skill completion advanced level % isotope exchange rate co₂ concentration0.5 % mixed gasoptimize
YY 0674-2008 in English

YY 0674-2008 in English

VALID

Ophthalmic instruments—Refractor heads

  • Issued on:2008-10-17
  • Implemented on:2010-06-01
  • File Format:PDF
  • Delivery:Via email within 1~3 business days
Price(USD): $150.00
$146.00

本标准给出了用于测量人眼双眼视功能和屈光不正的验光头的要求和测试方法。


Scope

This standard gives the requirements and test methods for optometrists used to measure the binocular visual function and refractive error of the human eye.

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