MAS-100 ISO NT® Perforated Lid is made from stainless steel and can be used with MAS-100 ISO NT® and MAS-100 ISO MH® microbial air samplers. It is compatible with the standard and easy clean base. The sieve of the perforated lid is the core of the air sampler. Each hole must have an identical diameter and length to accelerate the aspirated air correctly. The 3mm thickness of the perforated sieve guarantee a well-defined impaction jet. The impaction speed defines the physical sampling efficiency. The cut-off value D50 (the particle size at which 50% of the particles impact in the agar) must be identical between holes and between lids. That is why intense quality control of the sieves is performed. The sieve pattern with 400 holes of a diameter of 0.7 mm provides an impaction speed of approximately 11 m/s at a flow rate of 100 SLPM. This impaction speed allows a high physical efficiency, meaning a sampling efficiency of more the 50% of small particles at a size of less than 1.62 μm (D50, calculated) while maintaining the viability of microorganisms during impaction on the agar surface. The edge protection prevents scratching of the sealing surface which would lead to aspirating air through the gap. The perforated lid can be autoclaved and disinfected with all disinfectants compatible to stainless steel in order to avoid false positive results in high grade cleanrooms.
Aplicação
MAS-100 ISO NT® Perforated Lid, Stainless Steel 400-hole edge protected is used for microbial monitoring of ambient air with MAS-100 Iso family microbial air samplers in isolators, RABS and high-grade cleanrooms. Microbial air sampling devices are extensively used in Pharmaceutical applications.
Informações legais
MAS-100 is a registered trademark of MBV AG
MAS-100 ISO MH is a registered trademark of MBV AG
MAS-100 ISO NT is a registered trademark of MBV AG
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