|
热重分析仪参数 |
Moisture - 150 ºC, Plateau Deviation 0.051% |
|
Conclusions |
Moisture and ash analysis can be performed on the same sample in 4 - 5 hours depending on sample size. Moisture within day standard deviation was consistently around 0.02. Between day moisture standard deviation was artificially high due to moisture loss during the three-week testing period. Within day standard deviation for ash was consistently less than 0.006 for both sample types and sizes. The 4.5g sample allows for ash values to have a standard deviation of approximately 0.005 over time compared to 0.007 for the 3g. |
|
Flour Type |
Hard |
Hard |
Hard |
Soft |
Soft |
|||||
|
Sample Weight (g) |
3.0 |
4.5 |
3.0 |
4.5 |
3.0 |
4.5 |
3.0 |
4.5 |
3.0 |
4.5 |
|
n |
27 |
26 |
26 |
26 |
26 |
25 |
27 |
27 |
27 |
26 |
|
Moisture Avg |
13.98 |
13.96 |
13.86 |
13.85 |
13.89 |
13.88 |
11.31 |
11.33 |
12.95 |
12.94 |
|
Within Day Std (n=3) |
0.02 |
0.03 |
0.02 |
0.02 |
0.02 |
0.02 |
0.02 |
0.01 |
0.02 |
0.02 |
|
Between Day Std (n=9) |
0.08 |
0.08 |
0.16 |
0.16 |
0.10 |
0.10 |
0.02 |
0.01 |
0.06 |
0.06 |
|
Ash Avg |
0.472 |
0.478 |
0.508 |
0.512 |
0.567 |
0.572 |
0.384 |
0.390 |
0.508 |
0.509 |
|
Within Day Std (n=3) |
0.005 |
0.005 |
0.005 |
0.005 |
0.005 |
0.004 |
0.006 |
0.003 |
0.005 |
0.003 |
|
Between Day Std (n=9) |
0.007 |
0.005 |
0.008 |
0.005 |
0.008 |
0.005 |
0.007 |
0.003 |
0.007 |
0.003 |
|
Mst Time (min) |
60 |
77 |
60 |
77 |
60 |
77 |
60 |
77 |
60 |
77 |
|
Ash Time (min) |
183 |
225 |
183 |
225 |
183 |
225 |
183 |
225 |
183 |
225 |
|
Total Time (min) |
243 |
302 |
243 |
302 |
243 |
303 |
243 |
303 |
243 |
302 |
