Bottle Size: 230 mL each

Lead and cadmium (heavy metals)

Total coverage: 48

One Certified Breeze pre-filter

4x20ml, Storage + pH 4 + 7 + 10 Buffer Calibration/Solution/Fluid/Probe/Tester lab testing equipment Bottle Size: 230 mL eachDesign Features Sachet packaging means that you get fresh solution every time Each sachet sealed against light and air Ideal for infrequent or field use Simply open the sachet, insert the tester or electrode and gently stir pH buffers certified to 0. 01 pH accuracy Each sachet contains 20 mL of solution Included 1 x pH 4. 01 calibration buffer solution sachets (20 mL) 1 x pH 7. 01 calibration buffer solution sachets (20 mL) 1 x pH 10. 01 calibration