Method for inspecting pillar-shaped honeycomb formed body before firing or after firing

A method for inspecting a pillar-shaped honeycomb formed body before firing,

• the pillar-shaped honeycomb formed body having a pillar-shaped honeycomb structure portion comprising an outer peripheral side wall and partition walls disposed on an inner peripheral side of the outer peripheral side wall, the partition walls partitioning a plurality of cells forming flow paths from a first end surface to a second end surface,
• the method comprising:
• a step a1 of capturing at least one of the first end surface and the second end surface of the pillar-shaped honeycomb formed body before firing with a camera to generate an image of the at least one of the first end surface and the second end surface;
• a step b1 of measuring a size of an opening of the cells in the image generated by step a1;
• and
• a step c1 of identifying abnormal cells with the opening having a size deviating from a predetermined allowable range from the cells based on a measurement result of step b1 and measuring a number of the abnormal cells.