Range:0.1, 0.2, 0.5 , 1, 2, 5mg/l

Color Comparison Method:4-Aminoantipyrine Color Comparison Method with Enzyme

Reaction Time:1min

Quantity(pcs/box): 50

Interferences

Standard colors were determined from standard solutions. However, coexisting substances will

cause inaccurate results. The list below reports ion concentrations under which ones interferences

are insignificant:

≤ 1000 mg/L : Ag+, B3+, Ba2+, Ca2+,Cl-, F-, I-, K+, Mg2+, Na+, NH4

+, NO3

-, PO4

3-, SO4

2-, Zn2+

≤ 500 mg/L : NO2

-, Phenol

≤ 200 mg/L : Ni2+

≤ 100 mg/L : Al3+, Cr3+, Anionic surfactant

≤ 50 mg/L : Cu2+

≤ 20 mg/L : Co2+, Mn2+

≤ 5 mg/L : Cr6+

≤ 2 mg/L : Mo6+

≤ 1 mg/L : CN-, Fe3+

Sub-ppm level : Fe2+, Residual chlorine

The Ozone PACKTEST is suitable for sea water samples.

Oxidizing compounds like residual chlorine or hydrogen peroxide interfer positively.

Example:

Residual chlorine 1 mg/L ������ 0.2 mg O3/L

Residual chlorine 0.5 mg/L ������ 0.1 mg O3/L

Reductive substances can interfere by ozone consumption.