Synonyms: FORMVAR(R) SOLUTION, FOR MICROSCOPY,1% I N ETHYLENE CHL.;FORMVAR 15/95E;FORMVAR(R) SOLUTION, FOR MICROSCOPY,0.25 % IN ETHYLENE C;FORMVAR(R)15/95E;formvar(r);Polyvinyl formal resins;FORMVAR(R);Vinylacetalpolymers,formal;FORMVAR(R) SOLUTION, FOR MICROSCOPY,0.5% IN ETHYLENE CH;