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Heat Hazard Assessment
Heat Hazard Assessment
Daniel Oswald

Heat Hazard Assessment

When weather or workplace conditions will exceed 70 °F (21 °C), a heat hazard assessment must be conducted to consider environmental and work factors associated with heat stress and heat-related illnesses. Temperature, humidity, wind speed and solar irradiance are environmental factors that must be considered. Work factors include metabolic work rate (physical exertion) and clothing. These factors are all accounted for using an effective wet-bulb globe temperature (WBGT-Effective). Use of a heat index, which only considers temperature and humidity, is not recommended. The heat index does not consider wind speed, radiant heat, clothing and metabolic heat from physical exertion, which are all factors that can contribute to heat stress and heat-related illnesses.

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Free Heat Hazard Assessment Checklist

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Title Page

  • Site conducted

  • Conducted on

  • Prepared by

  • Location

  • Using the WGBT device, measure the temperature, humidity, and heat stress index. Take at least 3 readings that will correlate with the workday activities.

  • Air Temperature:

  • Humidity %:

  • Wind Speed:

  • Barometric Pressure ( Inches )

  • Cloud Cover Chart- Answer the next question by utilization of this chart.

    cloud_cover_table-v2.png

  • What is the Cloud Cover?

  • WGBT (HI- HEAT INDEX ) date and time reading at the start of the workday:

  • Heat Index Reading:

  • The reading is rated as "Caution" on Heat Index Chart. Did you ensure all procedures for a caution rating on the WGBT device are met?

  • The reading is rated as "Extreme Caution" on Heat Index Chart. Did you ensure all procedures for an extreme caution rating on the WGBT device are met?

  • The reading is rated as "Danger" on Heat Index Chart. Did you ensure all procedures for a Danger rating on the WGBT device are met?

  • The reading is rated as "Extreme Danger" on Heat Index Chart. Did you ensure all procedures for an extreme danger rating on the WGBT device are met?

  • WGBT (HI- HEAT INDEX ) date and time at the end of first break:

  • Heat Index Reading:

  • The reading is rated as "Caution" on Heat Index Chart. Did you ensure all procedures for a caution rating on the WGBT device are met?

  • The reading is rated as "Extreme Caution" on Heat Index Chart. Did you ensure all procedures for an extreme caution rating on the WGBT device are met?

  • The reading is rated as "Danger" on Heat Index Chart. Did you ensure all procedures for a Danger rating on the WGBT device are met?

  • The reading is rated as "Extreme Danger" on Heat Index Chart. Did you ensure all procedures for an extreme danger rating on the WGBT device are met?

  • WGBT (HI- HEAT INDEX ) reading date and time at the end of second break:

  • Heat Index Reading:

  • The reading is rated as "Caution" on Heat Index Chart. Did you ensure all procedures for a caution rating on the WGBT device are met?

  • The reading is rated as "Extreme Caution" on Heat Index Chart. Did you ensure all procedures for an extreme caution rating on the WGBT device are met?

  • The reading is rated as "Danger" on Heat Index Chart. Did you ensure all procedures for a Danger rating on the WGBT device are met?

  • The reading is rated as "Extreme Danger" on Heat Index Chart. Did you ensure all procedures for an extreme danger rating on the WGBT device are met?

Heat Hazard Assessment
Daniel Oswald

Heat Hazard Assessment

When weather or workplace conditions will exceed 70 °F (21 °C), a heat hazard assessment must be conducted to consider environmental and work factors associated with heat stress and heat-related illnesses. Temperature, humidity, wind speed and solar irradiance are environmental factors that must be considered. Work factors include metabolic work rate (physical exertion) and clothing. These factors are all accounted for using an effective wet-bulb globe temperature (WBGT-Effective). Use of a heat index, which only considers temperature and humidity, is not recommended. The heat index does not consider wind speed, radiant heat, clothing and metabolic heat from physical exertion, which are all factors that can contribute to heat stress and heat-related illnesses.

Use this Template
The templates available in our Public Library have been created by our customers and employees to help get you started using SafetyCulture's solutions. The templates are intended to be used as hypothetical examples only and should not be used as a substitute for professional advice. You should seek your own professional advice to determine if the use of a template is permissible in your workplace or jurisdiction. You should independently determine whether the template is suitable for your circumstances.

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