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Millipore

RapidMicroBio Perforated Lid

400 hole x 0.7 mm, anodized aluminum, for MAS-100 NT® series, MAS-100 VF® and MAS-100 Eco® suitable for Growth Direct cassettes

Sinonimo/i:

Collection head, Sieve head, Perforated lid

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About This Item

Codice UNSPSC:
41122409
NACRES:
NA.74

Materiali

aluminum lid

agenzia

non-compendial

Caratteristiche

no. of holes 400 autoclavavble

Produttore/marchio commerciale

MAS-100 NT®
MAS-100 VF®

top thickness

0.7 mm

applicazioni

air monitoring
cosmetics
food and beverages
pharmaceutical

Compatibilità

for use with Contact Plates
for use with MAS-100 NT®

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Descrizione generale

The Perforated lid 400 x 0.7 mm is made from anodized aluminum and can be used with the portable the MAS-100 NT® series, MAS-100 VF® and MAS-100 Eco® microbial air samplers. This version is specifically designed to work with Growth Direct cassettes instead of Petri dishes. The sieve of the perforated lid is at the core of the viable 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 due to inertia and 50% are exhausted with the airstream) 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 l/min. 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 1.6 μm (d50, calculated) while maintaining the viability of microorganisms during impaction on the agar surface (biological efficiency). The perforated lid can be autoclaved and disinfected with all disinfectants compatible anodized aluminum in order to avoid false positive results in high grade cleanrooms. The sampling efficiency for an instrument must remain identical, irrespective of the lid used.

Applicazioni

The perforated lid with 400 x 0.7 mm hole sieve is used for microbial monitoring of ambient air with portable MAS-100® microbial air samplers in controlled environments. Microbial air sampling devices are extensively used in Pharmaceutical and Personal care industries as well as in Food, Beverage and Environmental applications.

Note legali

MAS-100 is a registered trademark of MBV AG
MAS-100 Eco is a registered trademark of MBV AG
MAS-100 NT is a registered trademark of MBV AG
MAS-100 VF is a registered trademark of MBV AG

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