Reagents for HI 770 Checker HC ®, 25 Tests

Range 0 - 200 ppb | ascorbic acid method | Resolution 1 ppb

Range 0:00 to 2:00 ppm | ASTM D859 Method | 0.01ppm resolution

Range 0:00 to 5:00 ppm | EPA Method 315 B | 0.01ppm resolution