My experience is that civil designers do not make use of anthropometric tables for certification purposes, but because they want people to buy their aeroplanes and be happy with them. The standards do vary considerably.
Having said that, the BAe 146 was designed by DH in the 1960s so may have used the UK RAF anthropometric tables.
The "RAF tables", published in the 1950s are widely available and cover a wide range of measurements (buttock to knee, knee to heel, buttock to top of head, back of shoulder to stretched fingertip, etc.) and although the data only covers 1950s RAF aircrew, does give a good exmaple of how tables work. If memory serves (I don't have access to the document in question any more) Def-Stan 00-970 part 1, which is the UK military standard for fixed wing aircraft reproduces these tables but you can probably get them from a good aeronautical library.