$589.29

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

$63.93

Conductivity Standard, 2000 µS/cm at 25°C (1000 ppm TDS as NaCl) - 2244-32

$152.64

Conductivity Standard, 20,000 µS/cm (20 mS/cm) at 25°C (11,000 ppm TDS as NaCl) - 2247-1

$149.74

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

$701.19

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

$63.51

Conductivity Standard, 20,000 µS/cm (20 mS/cm) at 25°C (11,000 ppm TDS as NaCl) - 2247-32

$154.36

Conductivity Standard, 3000 µS/cm at 25°C (1534 ppm TDS as NaCl) - 2244.50-1