$149.74

Conductivity Standard, 1000 µS/cm at 25°C (495 ppm TDS as NaCl) - 2243-1

$668.50

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

$701.19

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

$62.29

Conductivity Standard, 1000 µS/cm at 25°C (495 ppm TDS as NaCl) - 2243-32

$740.25

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

$267.80

Conductivity Standard, 10 µS/cm at 25°C (4.7 ppm TDS as NaCl) - 2236-2.5

$846.01

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