Gastec Soluble Ion Tubes

For measuring gas ion levels in water

Gastec Soluble Ion tubes enable the measurement of dissolved substances in solution by simply immersing the tube into a solution vertically. Pointing upward, the solution will rise up through the tube due to capillary action and react with the reagent in the tube, giving a reading without the need for laboratory analysis. Applications include soil and water contamination.

Tubes are supplied in packs for 10 tests.

ChemicalTube NameMeasuring RangePart Number
Sulphide ion in solution

S2-
Sulphide ion10 ppm – 1000 ppmGST_211H
Sulphide ion in solution

S2-
Sulphide ion2 ppm – 300 ppmGST_211M
Sulphide ion in solution

S2-
Sulphide ion1 ppm – 100 ppmGST_211
Sulphide ion in solution

S2-
Sulphide ion0.5 ppm – 20 ppmGST_211LL
Ozone in solution

O3
Ozone1 mg/L – 10 mg/LGST_218
Bromide ion in solution

Br
Chloride ion55 mg/L – 2200 mg/LGST_221L
Bromide ion in solution

Br
Chloride ion24-480 mg/LGST_221LL
Chloride ion in solution

Cl
Chloride ion25 mg/L – 1000 mg/LGST_221L
Chloride ion in solution

Cl
Chloride ion10 mg/L – 200 mg/LGST_221LL
Free residual chlorine

ClO
Free residual chlorine0.1 mg/L – 10 mg/LGST_222
Mercury in solution

Hg
Mercury1 mg/L – 20 mg/LGST_271
Chromium (VI) ion in solution

Cr6+
Chromium (VI) ion0.5 mg/L – 50 mg/LGST_273
Iron ion in solution

Fe2+
Iron ion5 mg/L – 50 mg/LGST_281
Copper ion in solution

Cu2+
Copper ion1 mg/L – 20 mg/LGST_284 *
Zinc in solution

Zn
Zinc3 mg/L – 20 mg/LGST_285
Nickel in solution

Ni
Nickel5 mg/L – 50 mg/LGST_291

* Refrigerated storage – tubes to be stored at ≤10°C