Buffer solution pH 10.010, 25 sachets of 20 ml, ± 0.002 pH, millesimal Quality with certificate of analysis
สารละลาย
Buffer solution pH 2.000, 500 ml bottle, ± 0.002 pH, millesimal Quality with certificate of analysis
สินค้าทั้งหมด
Buffer solution pH 3.000, 500 ml bottle, ± 0.002 pH, millesimal Quality with certificate of analysis
Buffer solution pH 4.010, 500 ml bottle, ± 0.002 pH, millesimal Quality with certificate of analysis
Buffer Solution pH 4.010, ±0,002 pH, Millesimal Quality
Buffer solution pH 7.010, 500 ml bottle, ± 0.002 pH, millesimal Quality with certificate of analysis
Buffer Solution pH 7.010, ±0,002 pH, Millesimal Quality
Buffer solution pH 10.010, 500 ml bottle, ± 0.002 pH, millesimal Quality with certificate of analysis
Buffer solution pH 10.010, ±0,002 pH, Millesimal Quality
Buffer solution pH 11.000, 500 ml bottle, ± 0.002 pH, millesimal Quality with certificate of analysis
Buffer solution pH 12,000, 500 ml bottle, ± 0.002 pH, millesimal Quality with certificate of analysis
เครื่องวัดความเป็นกรด-ด่าง/โออาร์พี
Buffer solution pH 13,000, 500 ml bottle, ± 0.002 pH, millesimal Quality with certificate of analysis
081-855-1842
02-541-4199
เครื่องวัดคลอรีน 
HI70030P - EC 12880 µS/cm@25°C - 25x20ml 
น้ำยาสอบเทียบมาตรฐานแบบรวดเร็ว (HI5036-050) 
HI70080C - 800 mg/l (ppm) TDS@25°C Zert. - 25x20ml