Page 100 - Practical Technology 2025

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Clinical Pharmacy-Pharm D Level Three 2 Semester 2024/2025 Pharmaceutical Technology (PT 607)

4. A powder size analysis was carried out on 100 gm powder D using the
sieve method, the following data were obtained

• Draw a cumulative % frequency under and over size
• Calculate the mean granule diameter

Weight retained
Med point of size range Frequency
(n)

2 mm 2.7701
1 mm 5.4483
600 micron 6.2652
212 micron 36.3656
63 micron 44.6668
50 micron 4.484

Solution

Med point of Weight
size range retained
Frequency
(n)

2 mm 2.7701
1 mm 5.4483
600 micron 6.2652
212 micron 36.3656
63 micron 44.6668
50 micron 4.484

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