Speciation Samplers are designed to meet or exceed the EPA’s Speciation requirements. There are two models available: the SASS, which is a 5-channel sampling system, and the SUPER SASS, which is an 8-channel multiple event sampling system. Both models use features pioneered by Met One Instruments, such as the contamination-free Canister, solar radiation shield, and modular design.
The SASS is a portable integrated ambient particulate sampling system that samples PM2.5 at a rate of 6.7 liters/minute. It features a solar shield that maintains cassettes to less than <5°C over ambient temperature, a new multi-cell denuder, and multiple filter medias. The SASS is designed to comply with EPA requirements and has been shown to exceed these requirements in field studies conducted by the EPA and California Air Resources Board.
The SUPER SASS has all the features of the SASS, with the added benefit of sequential programming, which allows for multiple-day operation. It can sample up to eight days, depending on the number of sample channels used per day. The SUPER SASS comes standard with four independent volumetric flow controllers, one for each sampler group, and each channel can be operated independently. Advanced field audit screens are also available.