General answer is that you can't. There is usually insufficient information in the spec sheet. That said, some specs are better than others like what you show. In those cases, I am able to approximate them and not worry about small variations. If i get 0.003% and they say 0.002%, I consider that good enough verification.
IMHO the investment in a used AP or other "serious" audio analyzer quickly pays off, and be it only their robustness when abused. There still is a steep learning curve because more often than not the operator is the limit, not the gear. If your budget is very limited but your knowledge is not then you can go a long way with any reasonable ADC/DAC combo unit plus a set of self-made custom accessories and some helper hardware like protected auto-ranging units offered as DIY kits or ready-made units, etc. On the software side, we have, among others, Multitone and REW free-ware/donation-ware programs, both of which are excellent.
