Bs En 12390-2:2019 Link
: Guidelines for safely moving specimens from the site to the laboratory without causing internal damage. Why It’s Important
This is sometimes used for – initial slow heat development followed by standard curing. The standard allows this, but the precise regime must be agreed between the specifier and the tester. bs en 12390-2:2019
BS EN 12390-2:2019 the British and European standard that defines the procedures for making and curing concrete specimens for strength tests : Guidelines for safely moving specimens from the