do you issue a fire certificate when applying fire retardent ? if so where do you accuire such a thing.
The reason I ask is, I am in the process of recovering some bench seating at a club, the material is grade 5 and passes every test thats laid down for a public place, a fire certificate was issued along with the material when purchased, and it reads like a book :

, how ever 1 thing ic concerning me slightly , I intend to apply retardent to the foam seating, and was wondering if a seperate certificate was needed !
geoff