中华人民共和国国家职业卫生标准 - chinacdc.cn

1 ICS CCS C 52.. GBZ/T XXX XXXX. GBZ/T 2010.. Classification of work (job) under heat stress at workplaces . XXXX - XX - XX XXXX - XX - XX . GBZ/T XXX XXXX.. GBZ/T 2010 3 . GBZ/T . 1 . 2 . 3 . 4 . GBZ/T 2010 . 1 2020. 1 .. 4 . 5 2010 . 4 . 2010 . 6 2010 5 . 7 . B B .. 2010 GBZ/T 2010 .. 1. GBZ/T XXX XXXX.. 1 .. 2 .. GBZ 1 . GBZ 2 . GBZ/T 7 . 10 . GBZ/T 224 . 3 . GBZ/T 224 . workplace . work site / . wet-bulb globe temperature index ( wbgt index). wbgt / wbgt = . ( ) + ( ) + ( ) . wbgt = ( ) + ( ) .. work (job) under heat stress wbgt . 2. GBZ/T XXX XXXX.. hot weather 35 . work (job) under hot weather . the working time exposed in hot environment . allowable continuous heat exposure time ACHET.. necessary rest time NRT.. productive hot source . temperature of work site . the difference between indoor and outdoor temperature . maximum temperature of work site Tmax.

2 Environment heat intensity 3. GBZ/T XXX XXXX. wbgt . heat stress ( ) .. heat strain . heat balance , , . heat adaptation . heat acclimatization . clothing thermal insulation , Clo . - work (job) under heat stress & work-rest regimen ( ) . 4 .. 4. GBZ/T XXX XXXX. 5 .. / .. wbgt . wbgt . wbgt . wbgt wbgt . GBZ B .. (min) .. 4 I II . III IV . wbgt 1 .. 5. GBZ/T XXX XXXX. 1 .. t 25 26 27 28 29 30 31 32 33 34 36 38 wbgt . min wbgt <25. wbgt <26 wbgt <27 wbgt <28 wbgt <29 wbgt <30 wbgt <31 wbgt <32 wbgt <33 wbgt <34 wbgt <36 wbgt <38 wbgt <40 40. wbgt . I t 60 . 60<t 120 . 120<t 240 . 240<t 360 . 360<t 480 . t 60 . II 60<t 120 . 120<t 240 . 240<t 360 . 360<t 480 . t 60 . 60<t 120 . 120<t 240 . 240<t 360 . 360<t 480 . t 60 . 60<t 120 . 120<t 240 . 240<t 360 . 360<t 480 . 1 - wbgt GBZ 2 2 A 3 .. 1. GBZ/T XXX XXXX. 6 .. I .. III . IV .. B .. 35 37 .. 37 40.

3 6 3 . 40 . 7 .. 1. GBZ/T XXX XXXX. A.. wbgt GBZ/T wbgt . 2. GBZ/T XXX XXXX. B.. 75% 2 .. 2 . I . (Tmax)/ . 30 Tmax 32 80 70 60. 32 Tmax 34 70 60 50. 34 Tmax 36 60 50 40. 36 Tmax 38 50 40 30. 38 Tmax 40 40 30 20. 40 Tmax 42 30 20 15. 42 Tmax 44 20 10 10. T max .. 13-14 3d . T differ = T site - T out .. 1 . T max = T fore + T differ .. 2 . 1 2 . T max . T fore . T differ . T site . 3d . T out . 3d . 15min . 75% 10% . 2 .. 3. GBZ/T XXX XXXX. 4.. Classification of occupational exposure to heat stress at workplaces .. 2021 8 20 . 1.. , . 2021 881 2021 .. 2010 3 .. 1 . 1 . / .. / . 1 .. / . 2 .. / . 3 .. / . 4 .. / . 5 .. 2. / . 6 .. / . 7 .. 8 .. 9 .. 10 .. 1.. 10 .. 2.. 2021 6 .. 3.. 1 . / / .. 3. 2021 6 .. 2 . GBZ/T 2010 3 . / GBZ/T . 2010 3 .. 3 .. B.. 4.. 1 . 2021 7 .. 2 . 2021 8 .. 3 . 2021 9 XX xx .. 2021 9 . 2020 8 .. 4. GB/T 1.

4 GBZ 2007. 2 GBZ/T 224 2010. GBZ/T 2007 7 . GBZ/T 2007 10 . GB/T4200 2008 GB/T 934 2008 . GB/T 934-2008 . GB/T4200 2008 2017 12 15 31 .. GBZ. GBZ224 . GBZ GBZ224 .. 2010 2020 .. 1h 2h .. 2 . 2 .. RMR wbgt CET . ~1 ~2 ~3 ~4 5. ~5 relative metabolic rate RMR . RMR RMR [ . ]/ 3 .. kcal/h . RMR . ~1 ~130. ~2 ~190. ~3 ~250. ~4 ~310. ~5 ~370. 3 .. wbgt , , . wbgt . correctedeffectivetemperature CET 6 CET Brief wbgt CET Brief . CET . National Institute for Occupational Safety and Health NIOSH 2016 4 .. RALs . 1 2 wbgt .. RAL [ - wbgt ]= log 10 M [W]. REL [ - wbgt ]= log 10 M [W]. * M . 70 154 ).. 6.. 60 45 30 15min/h .. 1 RALs . RELs . 7. 2 RELs . NIOSH . 95% .. RALs . RELs . ISO ISO 7243 . HOT ENVIRONMENTS - ESTIMATION OF THE HEAT STRESS ON WORKING. MAN, BASED ON THE wbgt -INDEX (WET BULB GLOBE TEMPERATURE .. wbgt = nw + g . wbgt = nw + g +.

5 T nw t g t . wbgt . wbgt =( wbgt +2 wbgt + wbgt )/4. 1989 2017 ISO 7243 wbgt 4 5 . 8. 4 wbgt 1989 . W/m 2. wbgt .. <65 33 32. 65~130 30 29. 130~200 28 26. 200~260 25(26)* 22(23)*. >260 23(25)* 18(20)*. 38 * .. 5 wbgt 2017 . W/m2 wbgt .. 0 115 33 32. 1 180 30 29. 2 300 28 26. 3 415 26 23. 4 520 25 20.. 1.. 1960 7 1 .. 2005 2005 138.. 2007 . 186 .. 2007 103 2009 .. 9. 2010 .. 2010 19 2011 12 1 . 166 .. 2012 118 . 2012 6 1 . 2007 103 . 2010 19 2012 6 .. 2012 89 1960 . 2015 .. [2015]63 . 2017 . 2017 .. 2017 98 2017 . 2019 2019 . 2019 562 . 2019 2020 . 2020 2020 434. 2020 2021. 2021 . 2021 346 . 2.. 10.. 35 90 . 30 95 .. 28 38 ~41 85 98 . 2006 44 . 40 ~43 .. wbgt 1997 . GB4200 84 .. 2 2 . 51997 GB/T4200 1997 wbgt .. wbgt 25 6 . GB/T4200 2008 2010. wbgt .. GBZ . 11. 2 . wbgt 25 GBZ/T 224-2010 .. wbgt 4 . 2012 89 .. 80%RH wbgt .. 3 GB/T4200-2008.

6 2017 11 10 GB/T4200-2008 wbgt . GB/T8170-1987 . 6 . 6 GB/T4200-2008 . wbgt .. min 25-26 27-28 29-30 31-32 33-34 35-36 37-38 39-40 41-42 43. 120 . 121 . 241 . 361 . wbgt 25 . 120min . wbgt . 3 . wbgt . I II .. , 7 . 12. wbgt 29 29 . 60min 60min . 60min 1h . 7 . wbgt . 29-30 31-32 33-34 35-36 37-38 39-40 41- min 28-29 30-31 32-33 34-35 36-37 38-39 40- . 60-120 . I 121-240 . 241-360 . 361- . 60-120 . II 121-240 . 241-360 . 361- . 60-120 . 121-240 . 241-360 . 361- . 60-120 . 121-240 . 241-360 . 361- . wbgt .. GBZ/T 2010 3 .. 13.. 1 .. GBZ/T .. - . 1 [work job under heat stress].. GB/T 4200-2008 GBZ 2007 . 2 . wbgt 25 . GBZ 1-2010 GBZ/T 224 2010 . 4 . 2012 89 . wbgt . GBZ/T 3 .. GBZ 1 2010 GBZ/T 224 2010 .. wbgt . 2 work job under hot weather 4 . 2012 89 .. 3 workplace 14. GB/T 4200 2008 . GBZ 1 2010 GBZ/T 224 2010 . GBZ 1 2010 GBZ/T 224 2010.

7 4 work site GB/T 4200-2008 .. GBZ 1 2010 . GBZ/T 224 2010 . GBZ 1 2010 GBZ/T 224 2010 .. 5 heat stress GBZ/T 224-2010 .. 6 productive hot source GB/T 4200 2008 .. 7 hot weather 4 . 2012 89 . 35 . 8 the working time exposed in hot environment GB/T 4200-2008 . min . 9 allowable continuous heat exposure time ACHET. 15. GB/T 4200-2008 .. 10 necessary rest time NRT. GB/T 4200-2008 .. 11 temperature of work site GB/T 4200 2008 .. 12 the difference between indoor and outdoor temperature GB/T 4200-2008 .. 2 .. 35 . 90 30 95 .. 16.. 28 38 ~41 . 85 98 2006 44 . 40 ~43 .. 3 . 1 wbgt .. GBZ/T . GBZ/T 100% GBZ/T.. 100% GBZ/T 1 . I wbgt . 10 8 . 2 wbgt . GBZ/T 1 wbgt 29 wbgt . 29 . 60min 60min .. wbgt 25~26 27~28 . 17. 60min wbgt .. 3 . 1 wbgt GBZ 2007 . 2 . wbgt . 4 .. 4 . 2012 89 . 2020 . 2021 .. 2010 3 . wbgt . I II .. wbgt .. 5 .. 18.. GB/T4200 2008.

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