$257.43

Turbidity Standard, Primary Standard Stock Formazin Suspension, 4000 NTU - 8830-1

$183.49

Turbidity Standard, Primary Standard Stock Formazin Suspension, 4000 NTU - 8830-32

$152.82

Turbidity Standard, 40 NTU, Formazin - R8819040-500C

$94.24

Turbidity Standard, 1000 NTU, Formazin - 8825-16

$92.89

Turbidity Standard, 40 NTU, Formazin - R8819040-100C

$247.51

Turbidity Standard, 40 NTU, Formazin - R8819040-1C

$69.22

Turbidity Standard, 500 NTU, Formazin - R8819500-100C