Determinant

Unit

Method

Method number

1

2

3

4

5

6

7

8

Aluminum

Arsenic

Copper

Iron

Manganese

Sodium

Uranium

Zinc

mg/L

Determined either by atomic absorption spectroscopy or inductively coupled plasma optical emission spectroscopy (ICP-OES)

ICP1

9

10

11

12

Ammonia

Chloride

Nitrate and nitrite

Sulfate

mg/L

Determined by colorimetric method on a discrete analyser

GL 7-1

GL 7-5

GL 7-2

GL 7-4

13

Color

mg/L Pt

Determined with colorimeter

WL4*

14

15

Cyanide recoverable

Orthophosphate

mg/L

Determined by colorimetric method on a continuous flow analyser

CFA-1D*

CFA-1B*

16

Electrical conductivity

mS/m

Determined with electrode

WL2

17

pH

pH units

Determined with electrode

WL1

18

Total chlorophyll

µg/L

Determined by Sartory’s extraction method [9]

AL2

19

Total organic carbon

mg/L

Determined by a persulfate-ultraviolet oxidation method

AAL5

20

Turbidity

NTU

Determined with turbidity meter

WL3