$583.21

Conductivity Standard, 100 µS/cm at 25°C (47.2 ppm TDS as NaCl) - 2237-5

$846.01

Conductivity Standard, 150 µS/cm at 25°C (71 ppm TDS as NaCl) - 2236.25-5

$740.25

Conductivity Standard, 50 µS/cm at 25°C (23.6 ppm TDS as NaCl) - 2236.10-5

$616.01

Conductivity Standard, 100,000 µS/cm (100 mS/cm) at 25°C 65,750 ppm TDS as NaCl - 2249-5

$428.45

Conductivity Standard, 10 µS/cm at 25°C (4.7 ppm TDS as NaCl) - 2236-5

$668.50

Conductivity Standard, 500 µS/cm at 25°C (240 ppm TDS as NaCl) - 2241-5

$213.71

Conductivity Standard, 5000 µS/cm at 25°C (2620 ppm TDS as NaCl) - 2245-5