$589.29

Conductivity Standard, 1000 µS/cm at 25°C (495 ppm TDS as NaCl) - 2243-5

$154.36

Conductivity Standard, 2000 µS/cm at 25°C (1000 ppm TDS as NaCl) - 2244-1

$152.64

Conductivity Standard, 100,000 µS/cm (100 mS/cm) at 25°C 65,750 ppm TDS as NaCl - 2249-1

$152.20

Conductivity Standard, 500 µS/cm at 25°C (240 ppm TDS as NaCl) - 2241-1

$63.46

Conductivity Standard, 10,000 µS/cm (10 mS/cm) at 25°C 5400 ppm TDS as NaCl - 2246-32

$152.48

Conductivity Standard, 10,000 µS/cm (10 mS/cm) at 25°C 5400 ppm TDS as NaCl - 2246-1

$154.80

Conductivity Standard, 30,100 µS/cm (30.1 mS/cm) at 25°C (17,200 ppm TDS as NaCl) - 2247.30-1