Deriving the number of sampling locations.
Earlier the numbers of locations for monitoring of Non Viable Particle Counts was as per square root of the total area but now it has been revised and the numbers of the location has been fixed with respective of the area in square meter. If considered area falls in between the two values, then
greater of the two values shall be selected
Area (m2) Less than or equal
to
|
Minimum number of sample locations
|
Area (m2) Less than
or equal to
|
Minimum number of sample locations
|
|
2
|
1
|
76
|
15
|
|
4
|
2
|
104
|
16
|
|
6
|
3
|
108
|
17
|
|
8
|
4
|
116
|
18
|
|
10
|
5
|
148
|
19
|
|
24
|
6
|
156
|
20
|
|
28
|
7
|
192
|
21
|
|
32
|
8
|
232
|
22
|
|
36
|
9
|
276
|
23
|
|
52
|
10
|
352
|
24
|
|
56
|
11
|
436
|
25
|
|
64
|
12
|
636
|
26
|
|
68
|
13
|
1000
|
27
|
|
72
|
14
|
>1000
|
N = 27 X (area of clean room
in m2 / 1000)
|
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