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Ear thermometer international standard

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Ear thermometer Main standards
⒈Chinese national standard: GB T 21417.1-2008 medical infrared thermometer
⒉ EU standard: EN 12470-5-2003
⒊ American Standard: ASTM E 1965-1998 R2003


Comparison of main standards
The Chinese national standard temperature measurement accuracy detection method is:
Before testing, the thermometer should be stable under laboratory conditions ((23 ± 2) °C/(50 ± 20) %.) for at least 30 min. If the manufacturer specifies otherwise, the stabilization time can be longer.
In the temperature display range of 35 ℃ ~ 42 ℃, the black body temperature has three temperature points whose intervals are approximately the same. If necessary, the test points can be appropriately increased. The thermometer should be measured 3 times at each temperature and body temperature, and a new disposable detector protective cover (if any) should be replaced after each test reading.
The measurement error of each reading should meet: ±0.2 ℃
The EU standard temperature measurement accuracy detection method is:
Conditions of ambient temperature and humidity for testing an IR ear thermometer with a black body for each of three black body settings
Operating Temperature (℃) Relative Humidity (%)
16 to 18 less than 50
16 to 18 80 to 85
24 to 26 40 to 60
33 to 35 less than 25
33 to 35 80 to 85
The detection method of temperature measurement accuracy in the United States is:
Conditions of Ambient Temperature and Humidity for Testing an IR Thermometer with a Blackbody for Each of Three Blackbody Settings
Operating Temperature Relative Humidity (%)
16 to 18 ℃ (60 to 65 °F)* less than 50
16 to 18 ℃ (60 to 65 °F)* 90 to 95
24 to 26 ℃ (75 to 80 °F) 40 to 60
38 to 40 ℃ (100 to 104 °F)* less than 25
38 to 40 ℃ (100 to 104 °F) 75 to 85

Ear thermometer international standard
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