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Table 3 Standard deviations of 10 sub-samples (3 parallel examinations) of a house-dust sample in the 63-μm fraction in cfu/g × 10,000 (DG18, 25°C).

From: Evaluation of errors and limits of the 63-μm house-dust-fraction method, a surrogate to predict hidden moisture damage

Number 1 2 3 4 5 6 7 8 9 10 Mean % TCC SD SD%
Aspergillus 12 7 8 8 7 10 15 11 8 6 9 34 3 29
Penicillium 5 4 5 2 4 3 3 7 4 4 4 15 2 35
Cladosporium 10 6 8 6 7 8 5 5 6 7 7 24 2 24
Alternaria 2 5 3 2 4 3 3 3 2 2 3 10 1 39
Other 5 4 3 4 3 4 4 3 5 9 5 16 2 36
TCC 35 26 28 21 25 28 29 30 25 28 28 100 4 13
  1. SD- Standard deviation, SD% - relative percent standard deviation, % TCC- percent proportion of total colony count