One 500 mL whole-volume bottle is ready to analyze. The CRM is also certified for sodium at 10–400 mg/L. For a Sodium PT, order Hardness, Cat. #555. To be eligible to order Extra Volume, the PT item must be purchased first.
| Item no. | Name | Product Type | Study Frequency | Study Type | Accreditations | Study |
|---|---|---|---|---|---|---|
| 698 | Inorganics, PotableWatR™ | CRM | | Water Supply (WS) | ISO 17034 | |
| 528 | Inorganics PT (Extra Volume) | PT | Monthly | Water Supply (WS) | ISO 17043 |
|
| 591 | Inorganics | PT | Monthly | Water Supply (WS) | ISO 17043 |
|
| 698QR | Inorganics, WS QR | QR | | Water Supply (WS) | ISO 17043 |
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