Environmental Reference Materials, Inorganics, Turbidity Turbidity QC Check Standards 25 NTU #QCI-154 $80.00 – $254.00 A formazin based CRM available as a 500mL bottle or as a case of 4 x 500mL bottles. Stable and ready to use as received. Do not freeze. read more Options Choose an option500 mL4 x 500 mLClear Add to cart Compare Catalog Number: 25 NTU Options 500 mL, 4 x 500 mL Related products Quick View Choose Options Compare $45.00 – $102.00 Environmental Reference Materials Potassium ICP CRM #TM-025L Quick View Choose Options Compare $45.00 – $102.00 Environmental Reference Materials Antimony CRM #TM-002L Quick View Choose Options Compare $45.00 – $102.00 Environmental Reference Materials Molybdenum ICP CRM #TM-013L Quick View Choose Options Compare $45.00 – $102.00 Environmental Reference Materials Thallium – HNO3 #TM-017L
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