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TWL Log

The document provides a schedule of temperature and humidity readings along with corresponding risk levels for outdoor work. It outlines guidelines for work-rest ratios based on the Temperature Wet Bulb (TWL) index, indicating low, moderate, and high-risk levels. Recommendations include ensuring hydration and adjusting work/rest periods according to the risk level indicated by the TWL readings.

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Siyaah.O.Sufaid 2550
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467 views2 pages

TWL Log

The document provides a schedule of temperature and humidity readings along with corresponding risk levels for outdoor work. It outlines guidelines for work-rest ratios based on the Temperature Wet Bulb (TWL) index, indicating low, moderate, and high-risk levels. Recommendations include ensuring hydration and adjusting work/rest periods according to the risk level indicated by the TWL readings.

Uploaded by

Siyaah.O.Sufaid 2550
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as XLSX, PDF, TXT or read online on Scribd
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Location:

Date:

Time Dry Bulb Wet Bulb Globe Humidity Wind TWL Risk Level
Temp (°C) Temp (°C) Temp (°C) (%) Speed (W/m²)
(m/s)

6:00
8:00
10:00
12:00
14:00
16:00

> 220 W/m² Low Risk Normal self-paced work can continue. Ensure hydration.

140-220 W/m² Moderate Risk Work Can continue as per TWL flag 45 Min Work 15 Min Rest

80–140 W/m² High Risk Work as per TWL flag system 15 Min Rest 45 Work
Work/Rest Notes
Ratio

ntinue. Ensure hydration.

flag 45 Min Work 15 Min Rest

5 Min Rest 45 Work

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