DZ/T 0101.12-1994
Active
JJF 1837-2020
Active
National Metrology Technical Specifications JJF
JJF 1837-2020 Calibration Specification for A Ultrasonic Biometers of Ophthalmolog Scanner
JJF 1837-2020 Calibration Specification for A Ultrasonic Biometers of Ophthalmolog Scanner
Basic Information
Standard Code:
JJF 1837-2020
Standard Type:
National standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
-
ICS Name:
-
Publish Date:
2020-07-02
Implement Date:
2021-01-02
Pages:
20 pages
Scope
This standard applies to the calibration of ophthalmic Type A ultrasound measuring instruments (including other corneal thickness gauges and eye axis length measuring instruments based on the principle of ultrasonic echo biometry).
Development Information
Referenced Standards
GB/T 18022-2000 Acoustics—Methods for measuring the longitudinal sound speed and attenuation coefficient of rubbers and plastics in the frequency range 1MHz to 10MHz
YY 0107-2005 A mode ultrasonic biometer for ophthalmology
YY/T 0107-2015 A mode ultrasonic biometer for ophthalmolog scanner
YY/T 0107-2024 A mode ultasonic biometer for ophthalmology scanner
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