The UKCA regulations and CE Directive both require manufacturers to compile technical documentation. At HPiVS we call it a ‘Technical Construction File’. You may do this your own way but the following tools exist:

Technical documentation should include a series of checklists for each of the applicable standards. Without access to those standards, the task is impossible. 

Cost effective access to the harmonised standards as well as guidance can be found at

HPiVS strongly urges clients and non-clients alike, to make use of the tools above.