ชุดทดสอบเคมี
฿2,889.00
Reagents for HI 3896 test kit, 25 tests
฿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
แบบจานเทียบสี
฿3,959.00
The HANNA Test Kit for phosphate determines the phosphate concentration in irrigation water via checker disc.
แบบเทียบสี
฿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.