Non-Hazardous Exposures require no further evaluation if the emitters are below which threshold?

Non-Hazardous Exposures require no further evaluation if the emitters are below which threshold?

• A. Emitters producing less than 50 W upper tier or less than 10 W lower tier
• B. Emitters producing less than 1 W upper tier or less than 0.5 W lower
• C. Emitters producing less than 28 W upper tier or less than 5.6 W lower
• D. Emitters producing less than 100 W upper tier or less than 20 W lower

Answer: (C)

The test is checking how non-hazardous exposures are screened using two tier thresholds based on emitter power. If the device’s output is below the upper-tier threshold or below the lower-tier threshold, the exposure is considered non-hazardous and requires no further evaluation. The standard thresholds are 28 watts for the upper tier and 5.6 watts for the lower tier. So, when an emitter produces less than 28 W (upper tier) or less than 5.6 W (lower tier), it doesn’t need additional review. The values reflect a quick screening that low-power emitters are unlikely to reach exposure limits under typical conditions.

The test is checking how non-hazardous exposures are screened using two tier thresholds based on emitter power. If the device’s output is below the upper-tier threshold or below the lower-tier threshold, the exposure is considered non-hazardous and requires no further evaluation. The standard thresholds are 28 watts for the upper tier and 5.6 watts for the lower tier. So, when an emitter produces less than 28 W (upper tier) or less than 5.6 W (lower tier), it doesn’t need additional review. The values reflect a quick screening that low-power emitters are unlikely to reach exposure limits under typical conditions.