Dripping container cover

A dripping container cover fitted onto a storing part of a dripping container, a chemical liquid being stored in the storing part, the dripping container cover comprising:

• a bottom part;
• a first pressing part protruding from the bottom part;
• and
• a second pressing part protruding from the bottom part, the second pressing part including a face facing the first pressing part with a gap between the first and second pressing parts,
• wherein a face of the first pressing part which faces the second pressing part, and the face of the second pressing part, which faces the first pressing part, are each provided with projections,
• wherein a distance between an end of each of the projections, the end being apart from the bottom part further than the other end, and the bottom part is less than 0.7 times the height of the storing part, which is fitted into the cover, and the projections are arranged only at positions within central ranges of the storing part assuming that the storing part is divided into four in the width direction,
• wherein the first pressing part and the second pressing part are board members, and
• wherein the gap between extends in the width direction for the entire length of both of the first pressing part and the second pressing part and extends in a direction orthogonal to the width direction from the bottom part to a top end of each of the first pressing part and the second pressing part.