This line of buffers with millesimal accuracy (±0.002 pH), HI 60xx, has been prepared to meet the increasing need for assured accuracy in pH measurements. Each bottle of the series HI 60xx is provided with a certificate of analysis, prepared by comparison with NIST standards.
The colors on the HI 60xx series packaging correspond to a given standard pH value. They make it easy and safe to identify the buffers to be used.
เครื่องวัดปริมาณแอมโมเนีย ในน้ำ รุ่น HI715
HI7072 Electrolyte Solution, 1M KNO³, 4 x 30 ml
HI96711-11 CalCheck ™ Chlorine Total Calibration-Set 



