Hi, I've just translated a text into British English, where it felt natural for me to avoid spaces between numbers and the measurements, i.e. 16.8cm, not 16.8 cm. Now the American proofreader is telling the editor she should add in all these spaces. There are quite a lot of figures like these and I would like to know if there is a standard rule in British English before proceeding with corrections if they are unnecessary. Thanks.