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V-Notch
Test
APPROXIMATE YIELD IN L.P.H., (Litres Per Hour) for a 90°
"V"- Notch.
Yield = The continuous unrestrained flow of Water from a Bore-Well.
V-Notch Test Scale or Conversion Table (Accuracy 60% to 70%)
| V-Notch
Reading in Inches |
Approximate
Discharge Rate in l.p.h. |
Class |
| 1/2 |
95.40 |
|
| 3/4 |
261.00 |
Low
Yield |
| 1 |
597.00 |
|
| 1
1/4 |
1,045.00 |
|
| 1
1/2 |
1,650.00 |
Average
Yield |
| 1
3/4 |
2,425.00 |
|
| 2 |
3,382.00 |
|
| 2
1/4 |
4,558.80 |
High
Yield |
| 2
1/2 |
5,919.00 |
|
| 2
3/4 |
7,501.00 |
|
| 3 |
9,329.00 |
|
| 3
1/4 |
11,402.60 |
Very
High Yield |
| 3
1/2 |
13,720.00 |
|
| 3
3/4 |
16,284.60 |
|
| 4 |
19,148.00 |
|
| 4
1/4 |
22,285.60 |
|
| 4
1/2 |
28,695.20 |
|
| 4
3/4 |
29,459.20 |
|
| 5 |
33,350.00 |
|
| 5
1/4 |
37,914.00 |
|
| 5
1/2 |
42,551.00 |
|
| 5
3/4 |
47,461.00 |
|
| 6 |
52,644.00 |
|
| 6
1/4 |
58,372.00 |
|
| 6
1/2 |
64,373.00 |
Superlative
Yield |
| 6
3/4 |
70,919.00 |
|
| 7 |
77,464.00 |
|
| 7
1/4 |
84,557.00 |
|
| 7
1/2 |
92,195.00 |
|
| 7
3/4 |
1,00,105.00 |
|
| 8 |
1,08,288.00 |
|
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Copyright 2003. Michael J. Davis. All Rights Reserved.