฿1,658.50
		Buffer solution pH 4.01, color-coded, 500 ml bottle, ± 0.01 pH, Certificate of Analysis
	฿2,889.00
		Buffer Solution pH 4.01, 3.78L (Gallon), ±0,01pH,
	฿2,407.50
		Buffer Solution pH 5.00
	฿2,889.00
		Buffer Solution pH 6.86, 3.78L (Gallon), ±0,01pH,
	฿1,658.50
		Buffer solution pH 7.01, color-coded, 500 ml bottle, ± 0.01 pH, Certificate of Analysis
	฿2,889.00
		Buffer Solution pH 7.01, 3.78L (Gallone), ±0,01pH,
	฿2,889.00
		Buffer Solution pH 9.18, 3.78L (Gallone), ±0,01pH,
	฿3,745.00
		Standard-Leitfähigkeitslösung 12880 µS/cm, 3.78L Kanister (Gallone)
	฿3,745.00
		Standard-Leitfähigkeitslösung 1413 µS/cm, 3.78L Kanister (Gallone)
HI739 Checker HC ® - Fluoride. HR						
HI708 Checker HC ® - Nitrite, HR