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EPA Chart
For this activity you will need this chart:

The best way to memorize this chart is to memorize it as shown below. When you walk in to take the test, quickly sketch this chart on the back on your test booklet or on scratch paper if they provide it:
Note: the last item isn't on the chart below but you will find it helpful
| Ref |
Charge |
Before |
After |
| 22 |
under |
0 |
0 |
| 22 |
over |
4 |
10 |
| high |
under |
0 |
0 |
| high |
over |
4 |
15 |
| very |
(blank) |
0 |
0 |
| low |
(blank) |
25 |
25mm |
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