25pcs/lot PH Buffer Powder 4.00/6.86/9.18 Calibration Point PH Measure Calibration Solution Tool Accessories For PH Test Meter

Battery Included : No Hign-concerned Chemical : None Is Smart Device : No With Backlight Or Not : No Origin : Mainland China Certification : CE 25pcs/lot PH Buffer Powder 4.00/6.86/9.18 Calibration Point PH Measure Calibration Solution Tool Accessories For PH Test MeterItem Describe: 1. Type:4.01/ 6.86 Calibration Point 2. Each Pack Volume: 250 ml. 3. Each powder packet/sachet makes 250ml of solution (when mixed with distilled or deionized water) 4. Accuracy: ±0.01pH at 25°C