Black-body primary standard apparatus consisting of:- a) cylindrical beaker made of silica, b) crucible for melting platinum c) crucible lid [edge slightly chipped] d) Thoria tube e) a plano-convex lens and a lens holder (lens chipped) f) one right-angled prism (chipped at one corner) g) metal coil for induction heating
Crucible for melting platinum, crucible lid, Thoria tube, plano-convex lens and lens holder, and one right-angled prism, all for black-body primary standard apparatus.
Cylindrical beaker made of silica, for black-body primary standard apparatus.
Metal coil for induction heating for black-body primary standard apparatus.