Hi all
Been reading a couple of threads both on here and another forum and was wondering is there anywhere in the UK to buy a made up reference solution as it seem the DIY way is a bit hit and miss or at least a bit trouble some to make.
Keith
Been reading a couple of threads both on here and another forum and was wondering is there anywhere in the UK to buy a made up reference solution as it seem the DIY way is a bit hit and miss or at least a bit trouble some to make.
Keith