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ProCal Primary Turbidity Standards for Hach 1720 instrument
 The USEPA approves new HF scientific Primary Turbidity Standard!
“...the Office of Ground Water and Drinking Water’s Technical Support Center has concluded that HFscientific’s solution is an acceptable equivalent to currently approved primary polymer turbidity standards”
EPA, Feb. 2010
ProCal primary turbidity standards are pre-diluted, factory certified, and ready for use with not only the HF scientific turbidimeter product line but with other manufacturer’s instrumentation. The ProCal standard formulation utilizes a preservative that enhances stability, yet is safe and biodegrades rapidly in aquatic environments. |
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| ProCal standards certified for use with other manufacturer's instrumentation |
| *Hach 1720 c/d/e Process |
| *Hach part# |
**GFS part# |
HF part# |
Kit: |
NTU value |
Bottle size |
| n/a |
85558 |
52000 |
High range |
0.0, 20 |
1 liter |
| n/a |
85559 |
52010 |
High range |
0.0, 20 |
1 gallon |
| n/a |
86340 |
52020 |
Low range |
0.0, 1.0 |
1 liter |
| n/a |
86307 |
52030 |
Low range |
0.0, 1.0 |
1 gallon |
| 2659600 |
|
52040 |
High range |
0.0, 20 |
4 x 1 liter |
| 2659753 |
85005 |
52050 |
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0.0 |
1 liter |
| n/a |
85006 |
52060 |
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0.0 |
1 gallon |
| 2659853 |
85575 |
52070 |
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1.0 |
1 liter |
| n/a |
86291 |
52080 |
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1.0 |
1 gallon |
| 2660153 |
|
52090 |
|
20 |
1 liter |
| n/a |
85474 |
52100 |
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20 |
1 gallon |
| 2746353 |
|
52110 |
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40 |
1 liter |
| 2746356 |
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52120 |
|
40 |
1 gallon |
| *Hach is a registered trademark of the Hach Company |
| **GFS stands for GFS Chemical of Powell, Ohio |
| Click to download the ProCal literature |
| Contact customer service for substantial savings |
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For more information or to place an order please contact our customer service department or call 888-203-7248 |
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