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This information led to an inquiry in the US Congress. [5] ... Warning label for class 2 and higher. ... A Class 1 laser is safe under all conditions of normal use.
The vast majority of devices containing LEDs are "safe under all conditions of normal use", and so are classified as :"Class 1 LED product"/"LED Klasse 1". At present, only a few LEDs—extremely bright LEDs that also have a tightly :focused viewing angle of 8° or less—could, in theory, cause temporary blindness, and so are classified as ...
As a general guide for Zone 2, unwanted substances should only be present under 10 hours per year or 0–0.1% of the time. [3] Unclassified locations Also known as non-hazardous or ordinary locations, these locations are determined to be neither Class I, Division 1 or Division 2; Zone 0, Zone 1 or Zone 2; or any combination thereof.
Division 1.2: Substances and articles which have a projection hazard but not a mass explosion hazard Division 1.3: Substances and articles which have a fire hazard and either a minor blast hazard or a minor projection hazard or both, but not a mass explosion hazard. Note: The asterisks are replaced by the class number and compatibility code
1.2: Any quantity 1.3: Any Quantity 1.4: 1,001 lb (454 kg) O O: O: O O O 1.5: 1,001 lb (454 kg) 1.6: 1,001 lb (454 kg) Key The absence of any hazard class or division or a blank space in the table indicates that no restrictions apply. : This indicates that segregation among different Class 1 materials is governed by the compatibility group ...
IEC 60211 Maximum demand indicators, Class 1.0; IEC 60212 Standard conditions for use prior to and during the testing of solid electrical insulating materials; IEC 60214 Tap-changers; IEC 60215 Safety requirements for radio transmitting equipment; IEC 60216 Electrical insulating materials – Thermal endurance properties
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