This is used to calibrate your pH meter. This should be done on a regular basis to ensure ongoing accuracy from your meter.
230 Unit 5 Woodbourn Road, Sheffield
Directions to Sheffield Branch
Mon-Fri 10am - 6pm
Sat 10am - 5pm
Sun 10am - 4pm
Unit 6 Rockingham business park, Rockingham row, Barnsley
Directions to Barnsley Branch