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฿4,119.50
By using the HANNA Soiltest, it is possible to measure pH and the most important elements for plant growth, that is, nitrogen (N), phosphorus (P) and potassium (K).
Checker Disc
฿2,889.00
Reagents for HI 3896 test kit, 25 tests
Out of stock
฿25,680.00
Chemical test kit for the determination of nitrogen: colorimetric: NED phosphorus: colorimetric ascorbic acid Potassium: turbidimetric: tetraphenylborate Package Size: 25/25/25/25 tests
Out of stock
฿1,337.50
Iron can exist as ferrous (Fe2+) or ferric (Fe3+) ions. The HANNA test kit determines total iron levels in water via a colorimetric method. First all ferric ions are reduced by sodium sulfite to ferrous ions.