Stem Cells International / 2016 / Article / Tab 7

Review Article

Mesenchymal Stem Cells as Therapeutics Agents: Quality and Environmental Regulatory Aspects

Table 7

Recommended limits for viable airborne particles on surfaces according to EU-GMP and USP.

Clean area typeMaximal number of cfu on surfaces
EU GMPUSP
FS209EISOEU GMPContact plates (diam. 55 mm; cfu/plate)Contact plates (area 24–30 cm2; cfu/plate)
SurfacesFloor

M3.5 (100)5A<133
M4.5 (1,000)6
M5.5 (10,000)7B5510
M6.5 (100,000)8C25
D50

Contact plate areas vary from 24 to 30 cm2. When swabbing is used in sampling, the area covered should be greater than or equal to 24 cm2 but no larger than 30 cm2.

We are committed to sharing findings related to COVID-19 as quickly as possible. We will be providing unlimited waivers of publication charges for accepted research articles as well as case reports and case series related to COVID-19. Review articles are excluded from this waiver policy. Sign up here as a reviewer to help fast-track new submissions.