Calibration Test Powder Packets For Making PH 4.01 Buffer Calibration Solution :

PH 4.01 buffer calibration solution​​ is used to make buffer solution for the calibration of PH meter,it provides long shelf life and stable buffer solution, which is ideal for low volume use.
Each pack makes 250ML of buffer solution.
It's lightweight, cheap and takes up very little space.
These buffers are accurate to within ±0.01PH units @ 25°C and remain stable over long periods of time.

PH Standard Value Form For PH 4.01 Buffer Calibration Solution :

FY EP Sci-Tech Co., Ltd (Holding Company: HT Engineering Machinery Limited) is a professional enterprise engaged in the research and production of water purifiers, water testing devices and other environmentally-friendly high-tech products.

We own a professional team for quality & technology management and quality assurance, have attained ISO quality management system and CE certificate. The product design bases on the original research findings from the top lab in China.

We adhere to the development concept of "pragmatic innovation, going beyond ourselves, pursuing excellence, customer first" and the technical concept of "for each passing day, one step ahead" to pursue the win-win situations between our company and customers.

After years of efforts, our products have been sold to more than 100 countries and regions, mainly including Asia, Europe, North America, South America, Africa, Oceania markets and improving the reliability than ever.

With high quality products,innovative R&D capacity,reasonable prices and perfect after-sale services,we sincerely welcome you for business cooperation.