Bringing Workers Home Safely Since 1936; Saf T Gard operates the Voltgard Test Lab, the largest, independent, NAIL4PET accredited test lab in the United States using state of the art equipment for the full service and complete testing and recertification of rubber goods including gloves, sleeves, blankets all to applicable ASTM standards and ask Tim how he can help you with your Electrical Safety Program, Blankets ...