Iron Test Strips 3-500ppm, 0-3-10-25-50-100-250-500ppm

pH Buffer Powder Pillows for pH electrode calibration. Each powder pillow prepares 50 mL of fresh buffer solution. Color-coded for easy identification (Blue). pH is 10.01 ±0.02 at 25°C. Pack of 50 Powder Pillows Traceable to NIST standard reference materials Design for use with Hach and other meters. Product Type: Single Parameter Test Method: Test Strips Analyte/Chemical: Iron NOTE: PLEASE ALLOW 2-3 DAYS FOR PACKING AND SHIPPING ON ALL TEST STRIPS AND KITS.