Micro stir bars (L 25 mm x dia 7 mm/ 1×0.3″), specially designed for use with HI 180, and HI 190M, HI 190MB and HI 200M stirrers. The PTFE (PolyTetraFluoro-Ethylene) coating ensures high chemical resistance even with aggressive substances.
Comes with 10 pcs.
น้ำยามาตรฐานสอบเทียบ ค่ามาตรฐานความเค็ม
HI775 Checker HC ® - Alkalinity in fresh water (dKH) 

