$744.10

NaCl Cond Std, 18.53 mS/cm - R2246853-20F

$428.45

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

$665.78

Conductivity Standard, 10,000 µS/cm (10 mS/cm) at 25°C 5400 ppm TDS as NaCl - 2246-5

$1,606.61

pH/Cond/turbidity Std, pH 4.01, 4.49 mS, 0 NTU - 2232.6-5

$701.19

Conductivity Standard, 200 µS/cm at 25°C (95 ppm TDS as NaCl) - 2238-5

$616.01

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

$583.21

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