Quote from: sdm on May 06, 2020, 07:24:33 pmQuote from: petejh on May 06, 2020, 04:01:56 pm- stay within your local county, at most crossing one county boundary.I presume this was included just to annoy the Sheffield residents?Because of the dearth of decent climbing between the two counties of Yorkshire and Derbyshire? Yeah poor lambs.
Quote from: petejh on May 06, 2020, 04:01:56 pm- stay within your local county, at most crossing one county boundary.I presume this was included just to annoy the Sheffield residents?
- stay within your local county, at most crossing one county boundary.
This could be calculated as ABV (alcohol by volume) with A simple expt non? Pour some into a measure - let the alcohol evaporate and see what volume of ‘residue’ is left? Might try with an old calpol syringe later :D
"Thanks for your email, the Ethanol content in RT liquid chalk is between70 and 80% and I can confirm that the product is antibacterial."That was the response from Rock Technologies when I emailed.