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Wearing full-face shield to release sulfuryl fluoride. Image courtesy of Edmond Bonjour
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Clothes or shoes that have become contaminated with liquid should not be reused until thoroughly ventilated.
During the application, wear loose-fitting or well-ventilated long-sleeve shirt, long pants, shoes, and socks. Also, wear splash resistant goggles or a full-face shield during the introduction of the fumigant or when working around any lines containing the product under pressure.
When handling compressed gas cylinders, it is recommended to wear steel-toed safety shoes because of the weight of the cylinders.
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Full-face respirator with phosphine canister. Image courtesy of Edmond Bonjour
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RESPIRATORY PROTECTION
Phosphine
Respiratory protection is required when concentration levels of phosphine are unknown or when concentrations exceed permissible exposure limits of 0.3 ppm. A NIOSH/MSHA approved full-face gas mask phosphine canister combination may be used at phosphine levels above 0.3 ppm up to 15 ppm.
If the phosphine level is above 15 ppm or in situations where the phosphine concentration is unknown, a NIOSH/MSHA approved self-contained breathing apparatus (SCBA) must be worn.
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If phosphine is to be applied from within the structure to be
fumigated, an approved full-face gas mask, phosphine canister combination, or SCBA must be available at the site of application in case it is needed. Respiratory protection must also be available for applications from outside the area to be fumigated such as the addition of tablets or pellets to automatic dispensing devices and outdoor applications.
Sulfuryl Fluoride For sulfuryl fluoride, if the concentration in the fumigated area does not exceed 1 ppm, then no respiratory protection is required. When the concentration is above 1 ppm or when the concentration is unknown, wear a NIOSH approved positive pressure self-contained breathing apparatus (SCBA), approval number prefix TC-13F, or combination air-supplied/SCBA respirator. The SCBA must be at the fumigation location and operational before the fumigation begins. It is important to know how to use it correctly.
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