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HF Scientific™ ProCal™ Primary Turbidity Standards for Hach™ 2100N Laboratory Turbidimeter 
Standards not harmful to the environment or to worker safety
Supplier: HF Scientific™ HF52220
Description
- Pre-diluted
- Do not include formazin
- Preservative used enhances stability
- Biodegradable, safe and non-toxic
- Ready and easy to use
- Factory certified by HF scientific
- Custom NTU produced
- Available in different size bottles
Specifications
| Primary Turbidity Standard | |
| 1000 NTU | |
| 8.45 oz. |
| Hach 2100N Turbidimeter | |
| EPA | |
| 250 mL |