SOP ROUNDING OF ANALYTICAL RESULTS


ROUNDING OF ANALYTICAL RESULTS

0.0          WHAT

                This document details the procedure for rounding of analytical results.
               

1.0          why

It is the policy of the ABC Pharmaceuticals  that a written procedure shall be followed for the rounding off analytical results in order to make the results more meaningful and understandable.

2.0          when

This procedure is to be applied at the time of recording the analytical data in the test protocols/ reports.

3.0          RESPONSIBILITY

Persons along with their responsibilities are given below:

S. No
Designation
Responsibility
01
Executive   – Corporate Quality Assurance
To prepare and follow the SOP accordingly

02
Manager  – Quality Assuarance
To ensure implementation of SOP
03
Manager     -  Corporate Quality Assurance
To ensure implementation of SOP

4.0          PROCEDURE

4.1            rounding of dissolution and uniformity of cantant results


4.1.1      In case of dissolution and uniformity of content values, rounding of analytical results shall be done in first decimal place.
4.1.2      If the digit of second decimal place is smaller than five, it shall be eliminated and preceding digit shall be unchanged.
4.1.3      If the digit of second decimal place is five or greater than five, it shall be eliminated and preceding digit shall be increased by one.

4.2          rounding of impurity AND LOD OF WORKING STANDARDS results

4.2.1      In case of impurity and LOD values, rounding of analytical results shall be done in third decimal places.

4.2.2      If the digit of fourth decimal place is smaller than five, it shall be eliminated and preceding digit shall be unchanged.

4.2.3      If the digit of fourth decimal place is five or greater than five, it shall be eliminated and preceding digit shall be increased by one.

4.3        rounding of OTHER results

4.3.1      In case of other tests, rounding of analytical results shall be done in second decimal places.

4.3.2      If the digit of third decimal place is smaller than five, it shall be eliminated and preceding digit shall be unchanged.

4.3.3      If the digit of third decimal place is five or greater than five, it shall be eliminated and preceding digit shall be increased by one.



Table of examples for rounding of analytical results procedure

Test
Un-rounding value
(%)
Rounded of value
(%)

Assay
99.990
99.994
99.995
99.99
99.99
100.00

LOD
1.330
1.339
1.334
1.33
1.34
1.33

Sieve Analysis
20.420
20.426
20.422
20.42
20.43
20.42


Test
Un-rounding value

Rounded of value



Average weight
580.469 mg
580.462 mg
580.465 mg
580.47 mg
580.46 mg
580.47 mg

Uniformity of Weight
1.438
1.435
1.434
1.44
1.44
1.43

Dissolution
90.90
90.94
90.96
90.9
90.9
91.0

Uniformity of Content
99.996
99.990
99.995
100.0
100.0
100.0

Impurity
0.0030
0.0034
0.0036
0.003
0.003
0.004

LOD of Working                      standards
0.2145
0.2147
0.2142
0.215
0.215
0.214

Weight per ML

0.3452
0.3215
0.3219
0.345
0.322
0.322

Specific Gravity
1.4256
1.4563
1.4580
1.426
1.456
1.458

Tensile Strength
1.4256
1.4563
1.4580
1.426
1.456
1.458

Yield Stress
0.3452
0.3215
0.3219
0.345
0.322
0.322

Elongation
1.6548
1.6254
1.6541
1.655
1.624
1.654

Cross- section Area
4.2564
2.2415
3.2141
4.256
2.242
3.214

Compressive Test
23.125
22.451
22.367
23.13
22.45
22.37

Autoclave Test
9.365
9.321
9.330
9.37
9.32
9.33

Test
Un – rounding value
(%)
Rounded of Value
(%)

Le – Chaterlier Strength
2.562
2.435
2.564
2.56
2.44
2.56

Total Ash
1.438
1.435
1.434
1.44
1.44
1.43

Moisture
2.562
2.435
2.564
2.56
2.44
2.56

Acid value
1.987
1.256
1.364
1.99
1.26
1.36

Sulphated Ash

2.562
2.435
2.564
2.56
2.44
2.56

Moisture
1.438
1.435
1.434
1.44
1.44
1.43

Sugar
2.562
2.435
2.564
2.56
2.44
2.56

Peroxide Value
3.256
3.231
3.226
3.26
3.23
3.23

Iodine Value
9.654
9.665
9.998
9.65
9.67
10.00

Calorific Value
1.438
1.435
1.434
1.44
1.44
1.43

Protein
5.632
5.624
5.217
5.63
5.62
5.22

Carbohydrate
1.235
2.354
2.999
1.24
2.35
3.00

Total Fatty Matter
5.323
5.241
5.426
5.23
5.24
5.43

Para Phenyldiamine Content
1.235
1.241
1.001
1.24
1.24
1.00

Active Detergent
2.345
2.546
2.534
2.35
2.55
2.53
Test
Un-rounding value
(%)
Rounded of value
(%)

Foam Height
1.235
1.241
1.001
1.24
1.24
1.00

pH
1.235
2.354
2.999
1.24
2.35
3.00

Ash Content
5.632
5.624
5.217
5.63
5.62
5.22








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