穿孔盖

产品名称：

Perforated Lid
Perforated Lid for MAS-100NT, 400 hole x 0.7mm
collection head, sieve head
穿孔盖

产品介绍：

产品说明

一般描述

The Perforated 400 x 0.7 mm hole lid is made from anodized aluminum and can be used with all portable MAS microbial air samplers, especially designed for the MAS-100 Eco. The sieve of the perforated lid is at 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 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 1.62 1μm (D50) while maintaining the viability of microorganisms during impaction on the agar surface. The aluminium perforated lid can be autoclaved and disinfected with all disinfectants compatible anodized aluminium in order to avoid false positive results in high grade cleanrooms. This permit using a new lid for each sampling position or production batch or using lids while others are in the sterilization process and inaccessible. The sampling efficiency for an instrument must remain identical, irrespective of the lid used. Our perforated lids allow the exchange of several lids with identical sieve pattern on the MAS air sampler without the need of re-calibration.

应用

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. Especially MAS-100 Eco. Microbial air sampling devices are extensively used in Pharmaceutical and Personal care industries as well as Food, Beverage and Environmental applications. Additionally, a regulation for compounding pharmacies, USP797, that requires active air sampling in the level 5 and above areas.

联系

Replaces: 1.09088.0002

法律信息

MAS-100 Eco is a registered trademark of MBV AG
MAS-100 ISO MH 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

产品性质

物料	aluminum lid
agency	non-compendial
特点	autoclavable no. of holes 400
包装	pkg of 1 unit
参数	11 m/s impaction speed (at flow rate of 100 L/min)
孔直径	0.7 mm
application(s)	air monitoring cosmetics food and beverages pharmaceutical
相容性	for use with MAS-100 Eco^® for use with MAS-100 Iso MH^® for use with MAS-100 NT^® Ex for use with MAS-100 NT^® for use with MAS-100 VF^® for use with settle plates (ICR, ICRplus, LI)
储存温度	no temp limit

安全信息

储存分类代码

10-13 - German Storage Class 10 to 13