Based on your query, there are two distinct technical contexts for "AV2022" and "12.7z" that likely relate to the paper you are looking for. 1. Actuarial Valuation (Avon Pension Fund)

: "Effectiveness of AV2022 (9, 10 Anthraquinone) as an Avian Repellent" .

Is this for a report or wildlife/medical research?

is also the technical designation for a chemical compound (25% 9, 10-anthraquinone) used in agricultural research papers, specifically for repelling blackbirds from sunflower crops.