TPP test plates – produced conform to the SBS-3d-standard - exhibit finest workmanship, ease of inscription and uniform growth treatment. The lid has an air-venting system and guarantees a controlled gas exchange. The sloped edge of the lid ensures that it can be placed in one position only on the test plate. The yellow inscription areas support this positioning inasmuch that yellow goes to yellow!

The growth area is only available on the spherical base and not on the sides. This causes a flattening of the meniscus and thus a reduction of light scattering.

The 96-size is standardized with an interleaved barcode 2/5. The white base color is embossed firmly on the polystyrene and eliminates the possibility of loss of identification through detachment. The absolutely flat floor area, free from inclusions, guarantees the highest level of transparency.