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One post per day to learn about occupational health

2015-09-16View Original

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This post was last edited by hanyu*a8 on 2015-9-16 at 11:49. When the exposure concentration exceeds the PC-TWA and reaches the PC-STEL level, the continuous exposure time per session should not exceed 15 minutes, and the number of exposures per workday should not exceed 4 times. The interval between successive exposures should be: A. not more than 60 minutes; B. 60 minutes; C. not less than 60 minutes; D. less than 60 minutes
Reply #22015-09-16
When the exposure concentration exceeds the PC-TWA and reaches the PC-STEL level, the continuous exposure time per session should not exceed 15 minutes; the number of exposures per workday should not exceed 4 times. The interval between successive exposures should be no shorter than 60 minutes. A should not exceed 60 minutes; B: 60 minutes; C: should not be shorter than 60 minutes; D: less than 60 minutes
Reply #32015-09-16
When the exposure concentration exceeds the PC-TWA and reaches the PC-STEL level, the continuous exposure time per session should not exceed 15 minutes; the number of exposures per workday should not exceed 4 times. The interval between successive exposures should be no shorter than 60 minutes. A should not exceed 60 minutes; B: 60 minutes; C: should not be shorter than 60 minutes; D: less than 60 minutes
Reply #42015-09-16
When the exposure concentration exceeds the PC-TWA and reaches the PC-STEL level, the duration of a single exposure session should not exceed 15 minutes, the number of exposures per working day should not exceed 4 times, and the interval between consecutive exposures (C)
Reply #52015-09-16
C------------------------------------------------------
Reply #62015-09-16
When the exposure concentration exceeds the PC-TWA and reaches the PC-STEL level, the duration of a single exposure session should not exceed 15 minutes, the number of exposures per working day should not exceed 4 times, and the interval between successive exposures (B
Reply #72015-09-16
When the exposure concentration exceeds the PC-TWA and reaches the PC-STEL level, the duration of a single exposure session should not exceed 15 minutes, the number of exposures per working day should not exceed 4, and the interval between successive exposures should be no shorter than 60 minutes
Reply #82015-09-16
C should not be less than 60 min
Reply #92015-09-16
C should not be less than 60 min
Reply #102015-09-16
When the exposure concentration exceeds the PC-TWA and reaches the PC-STEL level, the continuous exposure time per session should not exceed 15 minutes, the number of exposures per workday should not exceed 4 times, and the interval between successive exposures (C) should not be less than 60 minutes

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Translated at 2026-07-21 01:39:47

Original: https://bbs.hcbbs.com/thread-1436187-1-1.html

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