Reagents for HI 761 Checker HC ®, 25 Tests

Range 0-999 ppb | ASTM Method D1687-92 diphenylcarbonate | Resolution 1 ppb

Range 0 - 20 ppm | ESPA method | Resolution 0.1ppm

Range 0:00 to 3:50 ppm | USEPA Method 330.5 / DPD | Resolution 0.01ppm