Gruffty the Hiver
Mongoose
.....and yea, the Hiver delivereth 
OK, here are the canon Traveller Trade Classifications, from here on called TCs (I've examined this subject before - can you tell?
):
*: Note the change in the Atmosphere parameters between LBBs 2/6/7 and MT. This table is based on the Trade Classifications table from p. 50, MegaTraveller Referee's Manual (dead tree copy).
References
LBB 2 = Classic Traveller Book 2: Starships (from the trade system);
LBB 6 = Classic Traveller Book 6: Scouts (from the world generation system);
LBB 7 = Classic Traveller Book 7: Merchant Prince (from the trade system);
MT = MegaTraveller Referee's Manual (from both the world generation system - closely related to LBB 6 - and the MT trade system - TCs are closely related to LBBs 6 & 7).
OK, here are the canon Traveller Trade Classifications, from here on called TCs (I've examined this subject before - can you tell?
Code:
TC Sp Sz At Hy Pp Gv Lw TL References
Ag - - 4-9 4-8 5-7 - - - LBB 2, 6, 7 & MT
As - 0 0 0 - - - - LBB 6, 7 & MT
Ba - - - - 0 0 0 - LBB 7 & MT
De - - 2+ 0 - - - - LBB 6, 7 & MT
Fl - - A+ 1+ - - - - LBB 7 & MT
Hi - - - - 9+ - - - LBB 7 & MT
Ic - - 0-1 1+ - - - - LBB 6, 7 & MT
In* - - 0-2,4,7,9 - 9+ - - - LBB 2, 6, 7
In* - - 2-4,7,9 - 9+ - - - MT
Lo - - - - 3- - - - LBB 2 & MT
Na - - 0-3 0-3 6+ - - - LBB 2, 6, 7 & MT
Ni - - - - 0-6 - - - LBB 2, 6, 7 & MT
Po - - 2-5 0-3 - - - - LBB 2, 6, 7 & MT
Ri - - 6,8 - 6-8 4-9 - - LBB 2, 6, 7 & MT
Va - - 0 - - - - - LBB 6, 7 & MT
Wa - - - A - - - - LBB 6, 7 & MT
References
LBB 2 = Classic Traveller Book 2: Starships (from the trade system);
LBB 6 = Classic Traveller Book 6: Scouts (from the world generation system);
LBB 7 = Classic Traveller Book 7: Merchant Prince (from the trade system);
MT = MegaTraveller Referee's Manual (from both the world generation system - closely related to LBB 6 - and the MT trade system - TCs are closely related to LBBs 6 & 7).