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C H A P T E R 1 0
Extending the result
P a g e 1 0 . 6
G e t t i n g
S t a r t e d
12
10
8
d' µm
6
A1
4
2
B2
0
B1
The shape correction factors are stored as a shape file. The shape file can be
created and edited using the Edit-Shape Factors dialogue. As the shape
correction factors are generated for a specific Mastersizer size range, the correct
range must be selected when creating and editing the shape file. The selected size
range is also saved with the shape file. When a shape correction is required a shape
file is selected and loaded during the process of modification. All shape files have
extension .SHA.
Details of creating and editing shape files and selecting shape file for the result
modification are described under Edit-Shape Factors and Setup-Result
Modification in the Software reference manual.
If you want to measure samples with a broad range of sizes, some of which are
above the size limit of the Mastersizer, then you may consider using the range
extend facility. The Extend Result modification adds results measured by
another method, usually by sieving, to those of the Mastersizer.
To extend the result at least one measurement by the other method must lie
within the measurement range of the Mastersizer. You need to calculate the
cumulative result distribution using the other method ready for entering into the
Mastersizer software. The values you will need are:
. The size for which 100% of the result is smaller.
. Up to 8 results, consisting of size and cumulative percent smaller, at sizes
above the range of the Mastersizer.
Slope = A1
2
4
6
d µm
A2
Slope = A2
8
10
12
M A N
0 1 0 1
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