From the chaotic regions of the Cryptosphere, "Charles M Atkinson" wrote on Mon, 14 Jul 2003 19:45:14
+0100:
The (Approved Documents to the) Building Regulations are (one way of achieving) the absolute minimum standard acceptable for health, safety and welfare. If a manufacturer recommends a higher standard, and whether you choose to follow that advice, that's down to them (and very commendable it is, too), and to you.