1.0 OBJECTIVE:
To
lay down the calibration procedure of Sieve shaker.
2.0 SCOPE:
This
shall be applicable to the Sieve shaker of Quality Control Instrument Laboratory.
3.0 RESPONSIBILITY:
3.1
Technical
Assistant/ Helper.
3.2
Q.C Analyst.
4.0 ACCOUNTABILITY:
4.1
Manager-Quality
Control.
5.0 MATERIAL AND
EQUIPMENT:
5.1
Sieve shaker.
5.2
Sieves.
5.3
Sample (granules).
6.0 PROCEDURE:
6.1
Switch ON the
mains.
6.2
Operate the Sieve
shaker according to the SOP.
6.3
Check the time
with calibrated and certified clock at 10min, 20min, 50min and 90min. The
tolerance should be ±1min.
6.4
Record the result
on the “Calibration Record”,
“Calibration Log Book” & paste the “Calibration
Status Sticker” on Sieve shaker.
6.5
Tolerance: ±1.
6.6
Frequency:
6.6.1
Monthly and after
every maintenance.
6.7
Precautions:
6.7.1
Sieve can be
cleaned regularly.
6.7.2
Frequent use can
cause changes in mesh openings, much of the damage sustained during cleaning.
Often operator hurries to clear the mesh by strongly tapping the frame.
7.0 REVISION LOG:
|
Revision No.
|
Effective Date
|
Reason
|
|
00
|
|
New
SOP
|
8.0 REFERENCES:
8.1 Not Applicable.
9.0 ANNEXURES:
Annexure 1:
Calibration sheet of Sieve.
Annexure:
1
Calibration
sheet of Sieve.
|
Calibration of Sieve
Instrument:
___________________
Date: _______________
Model:
_______________________
Sieves used in order:
___________________________________
Average
particle size= Σ (%age weight retained x mean size)
100
Tolerance:
±1.
Time:
|
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10.0
ABBREVIATIONS:
|
Abbreviation
|
Expanded Form
|
|
SOP
|
Standard operating
procedure
|
|
&
|
And
|
|
No.
|
Number
|
|
Ltd.
|
Limited
|
|
Q.C
|
Quality control
|
|
Q.A
|
Quality assurance
|
|
QCEB
|
Quality control
equipment calibration
|
|
F
|
Format
|
|
Sr.#
|
Serial number
|
|
Min
|
Minute
|
|
g
|
Grams
|
|
%
|
Percentage
|
|
μ
|
Micron
|
|
Σ
|
Sigma
|
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