HI7041x Refilling Solution for Polarographic Probe

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

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

Range 0.00 - 9.99 ppm NH3-N | Nessler Method | 0.01ppm resolution