Sample

Brands

Final reading (mL)

Initial reading (mL)

Volume (ml) used for blank sample (B)

Volume (ml) used H₂SO₄ (A)

Nitrate

(mg/L)

TEX

1.9

0.0

0.1

1.9

20.16

Blue Diamond

2.6

1.9

0.1

0.7

6.72

JAH

3.6

2.6

0.1

1.0

10.08

JAGISA

4.4

3.6

0.1

0.8

7.84

KUMA

5.1

4.4

0.1

0.7

6.72