Parameter

Code

Method

Range*

Smallest
Increment

Number
Of Tests

Weight

Glycol

HI 3859

Visual

Present/Absent

----

25

380 g

Hardness
(as CaCO₃)

HI 3812

HI 3840
HI 3841
HI 3842

Titration

Titration
Titration
Titration

0-30 mg/L
0-300 mg/L
0-150 mg/L
40-500 mg/L
400-3000 mg/L

0.3 mg/L
3 mg/L
5 mg/L
20 mg/L
100 mg/L

100

50
50
50

460 g

120 g
120 g
120 g

Hydrazine
(as N₂H₄)

HI 3849

Checker disc

10-1 mg/L

5 mg/L

100

800 g

Hydrogen
Peroxide
(as CH₂O)

HI 3844

äµàµÃ´
Titration

0-2 %
0-10 %

001 %
1 %

100

450 g