JJG 922-2008
Verification Regulation of Standard Devices of Vertex Power for Eye Refractometers (English Version)
- Standard No.
- JJG 922-2008
- Language
- Chinese, Available in English version
- Release Date
- 2008
- Published By
- National Metrological Verification Regulations of the People's Republic of China
- Latest
- JJG 922-2008
- Replace
- JJG 922-1996
- Scope
- This procedure applies to the initial calibration, subsequent calibration and in-use inspection of the phoropter vertex power standard (including objective standard simulated eye, subjective standard simulated eye, cylindrical standard, and pupil distance standard of the phoropter).
JJG 922-2008 Referenced Document
- ISO 10342:2003 Ophthalmic instruments - Eye refractometers
- JJF 1002-1998 The Rules for Drafting National Metrological Verification Regulation
- JJF 1059-1999 Evaluation and Expression of Uncertainty in Measurement
- JJG 892-2005 Eye Refractometers
JJG 922-2008 history
- 2008 JJG 922-2008 Verification Regulation of Standard Devices of Vertex Power for Eye Refractometers
- 1996 JJG 922-1996 Verification Regulation of The Standard Device of Vertex Power for Refractometers
