Yes

Nitrite

pH

1.5 Years

Nitrate

Ammonium

Phosphate

Total hardness

15−25 °C

VISOCOLOR

No

Nitrate - 0 • 1 • 5 • 10 • 20 • 50 • 90 mg/L NO₃⁻ / 50 tests / Refill REF 933200, VISOCOLOR School Nitrate

Nitrite - 0 • 0.02 • 0.05 • 0.1 • 0.2 • 0.5 mg/L NO₂⁻ / 50 tests / Refill REF 933200, VISOCOLOR School Nitrite

pH - 4.0 • 5.0 • 6.0 • 7.0 • 8.0 • 9.0 / 50 tests / Refill REF 933200, VISOCOLOR School pH 4.0–9.0

Phosphate - 0 • 0.5 • 1.5 • 3 • 6 • 15 mg/L PO₄³⁻ / 50 tests / Refill REF 933200, VISOCOLOR School Phosphate

Ammonium - 0 • 0.2 • 0.5 • 1 • 3 mg/L NH₄⁺ / 50 tests / Refill REF 933200, VISOCOLOR School Ammonium

Total hardness - 1 drop corresponds to 1.25 °e / 50 tests / Refill REF 933200, VISOCOLOR School Total hardness

Reagents, spoon