Nextteq Sulphide Ion Dissolved Substance Detector Tubes. Options:

Sulphide Ion Dissolved Substance Detector Tubes
Detection Range: 2 - 1,000 ppm
P/N 200SA

Sulphide Ion Dissolved Substance Detector Tubes
Detection Range: 0.5 -10 ppm
P/N 200SB

Immerse the end filled with the solution, with white end plug, into prepared sample solution. Capillary action will occur immediately and the solution sample will rise through the reagent. If Sulphide Ion is present in the solution sample, a discoloration will occur