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Cooling Water Treatment Comparison:
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Better Corrosion Control
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| Test Information | ||||||
| Coupon Surface Area: | 21.81 | cm² | ||||
| Exposure Duration: | 170 | Hours | ||||
| Alloy Density: | 7.86 | g/cm³ | ||||
| Control Initial: | 11.6250 | g | ||||
| Control Final: | 11.6133 | g | ||||
| Cleaning Correction: | 0.0117 | g | ||||
| Weight Loss Data | ||||||
| Coupon | M1 | M2 | Loss | Corrosion Rate | ||
| # | g | g | g | mpy | ||
| 65971 | 11.7027 | 11.6302 | 0.0608 | 7.20 | Jar 1 |
Blank |
| 65972 | 11.7413 | 11.6622 | 0.0674 | 7.98 | Jar 1 |
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| 65973 | 11.6140 | 11.5960 | 0.0063 | 0.75 | Jar 2 |
300 ppm AS-8310, 6 PPM Tin |
| 65974 | 11.7124 | 11.6928 | 0.0079 | 0.94 | Jar 2 |
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| 65975 | 11.6453 | 11.6273 | 0.0063 | 0.75 | Jar 3 |
400 ppm AS-8310, 8 PPM Tin |
| 65976 | 11.6704 | 11.6556 | 0.0031 | 0.37 | Jar 3 |
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| 65977 | 11.6776 | 11.6492 | 0.0167 | 1.98 | Jar 4 |
9 ppm orthophosphate, 1.5 ppm zinc |
| 65978 | 11.6484 | 11.6208 | 0.0159 | 1.88 | Jar 4 |
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| 65979 | 11.6630 | 11.6306 | 0.0207 | 2.45 | Jar 5 |
18 ppm orthophosphate, 3 ppm zinc |
| 65980 | 11.7040 | 11.6738 | 0.0185 | 2.19 | Jar 5 |
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Tests conducted during February 2009
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