Documentation:High Heat Temperatures

Workers are exposed to high temperatures when working with the molten wax and machinery .

Health Impacts

Burns

Molten wax is approximately 370 °C . Contact with heat at this temperature causes third degree burns that can leave long term effects and scars . Workers can either be in direct contact with the molten wax or accidentally touch the heated tin molds when working with the candle molding machine.

Distress

Working with hot objects in high temperatures is extremely stressful. Working long hours in non-ventilated and non-airconditioned settings can cause distress to workers .

Measurements and Exposure

The Wet Bulb Globe Temperature (WBGT)

The wet bulb globe temperature is calculated using a formula that takes into account air temperature, speed of air movement, radiant heat from hot objects, sunshine and body cooling due to sweat evaporation .

OSHA Guideline

According to OSHA's Heat Index Guideline, a heat index of less than 91℃ is at a risk lower/caution risk level and basic heat safety and planning is needed . For heat indexes between 33℃ and 39℃, the risk level is high moderate and it is important to implement precautions and heighten awareness at this level . Heat indexes of 39℃ to 46℃ is considered at a high risk level and additional precautions to protect workers from the heat is suggesting . Last but not least, a heat index of 46℃ or higher is considered to be a very high to extreme risk level so it is extremely important to implement aggressive protective measures at this level .

Controls

Engineering

Engineering controls can provide a cooler workplace.Ventilation and Air Conditioning can cool work stations and reduce humidity.

Administrative

Implement a policy that allows workers to have frequent breaks when working in the molding process. Furthermore, promote safe work practices to reduce exposures to hazards. Lastly, train employees to be able to recognize, prevent and treat heat illnesses. Safe work practices to reduce worker exposure.

Personal Protective Gear

Wearing thin and lightweight clothing can prevent the worker from being overheated. Moreover, loose clothing can easily get caught in machinery and molten wax and catch on fire, so workers are encouraged to wear tight, but lightweight clothing.

References

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