Make Standard Test Buffer Solution 4.01-6.86-9.18 PH Calibration Powder :

PH Calibration Powder Use Method :

1. Firstly, 6.86 calibration powder is poured into 250ml distilled water or pure water and stirred well. Then, the power of PH pen is turned on and the test end is put into the calibration solution.

2. See if the PH pen shows 6.86 or 6.8 in the correction solution of 6.86. If it does not show 6.8 or 6.86, adjust the screw in the screw hole on the back of the PH pen with a random screwdriver and set the value to 6.86 or 6.8 (0.1 to 6.8)?

3. Find a new cup, the same 250 ml of pure water or distilled water. Pour the correction powder of 4.01 red packaging bag into it, mix it well, and put the PH pen corrected just now into the correction solution of 4.01.

4. 4.01 or 4.0 value indicates that the correction is successful, if the display is not 4.01 or 4.0, it needs to be revised in the same way as before.

PH Standard Value Form For PH Calibration Powder :

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.