(1) Whether his department commissioned a (a) research and (b) survey on approved products listed with the SA Bureau of Standards (SABS); if not, why not, in each case; if so, (i) in each case, what was the (aa) scope and (bb) findings, (ii) which products failed quality assurance and (iii) what are the further relevant details; (2) what measures has his department implemented to prevent any oversight in the quality assurance process by the SABS?