Atmosphere-Supplying Respirator Parts and Accessories
Other parts and accessories include ASR regulators and reducers that regulate the flow of air to respirator head pieces; and ASR hoses and fittings that enable clean, breathable air to be delivered to hoods, helmets, or full facepieces.
Accessories are optional enhancements of ASRs based on wearer preference or environment. Examples include, but are not limited to, variations of lenses and lens covers, climate control tubes, flow control valves, and caps.
Regulatory compliance details can be obtained at the individual product level.
Grainger Fire Bell Red 8 In.
The Edwards Signaling Fire Bell is a 6 inch diameter, red painted, cast iron fire alarm bell. It produces a loud, penetrating sound to alert building occupants of a fire or other emergency. The bell operates on 24 volts DC and draws 0.33 amps. It is weatherproof and suitable for indoor or outdoor use. The bell has an adjustable volume from 80 to 102 decibels. It can be flush mounted on walls or ceilings. This is a durable and reliable audible signaling device for fire alarm systems, factories, schools, and other facilities.
Grainger Fire Bell Gray 8 In.
The Edwards Signaling 120V AC Fire Bell is a 6 inch diameter bell that produces a loud, penetrating sound to alert people of a fire or other emergency. It has an output of 84 dB at 10 feet and is made of durable red painted steel with the words "FIRE" printed on the front. This bell requires 120V AC power and is intended for indoor or outdoor use. With an ANSI/UL rating of 464, it meets standards for audible signal appliances. The bell works by using an electromagnet to repeatedly strike a gong when power is applied. Overall, this is a reliable, time-tested emergency signaling device.
Electron Microscopy Sciences Optical Resolution Grating with Ronchi Ruling 200 lines/ mm
Metallic grating pattern on glass squares with opaque lines approximately 50% of the pitch. Stock items are on 50 mm x 50 mm squares of glass 1.5 mm thick. The glass is B270 with refractive index of 1.52. Mutually perpendicular pairs produce a screen of square apertures. Vacuum deposited chrome gratings on glass substrate. Typically used for testing of resolution, field distortion and parfocal stability, but may be paired to provide interference patterns. 26mm x 10mm soda. 200 lines per mm ruled over 30mm
Enterprise Technology Solutions Allergen Defense Air Filter
Allergen Defense Air Filter 20 x 30 4/Carton
Enterprise Technology Solutions Allergen Defense Air Filter
Allergen Defense Air Filter 12 x 20 4/Carton