Steristoppers

Steristoppers and Steristoppers fit are closing plug of cellulose for microbiology. They are used in bacteriology, in hygiene institutes, food and forensic laboratories as well as in schools.

History

The Steristoppers was developed and filed on March 13, 1965 patent and as a brand in the early 1960s by Heinz Herenz.

Properties

Steristoppers suitable for sterile closure of bacterial cultures in test tubes, Erlenmeyer flasks and culture. They are autoclavable up to 200 ° C, bakterienfilternd, sterilizable, permeable to air and are designed for single use only. They eliminate the need for the cumbersome and labor-intensive screwing of cotton, which was the common method for closing of laboratory glassware to the development of Steristoppers.

Production

Steristoppers are wound in Germany of a special, made ​​specifically for this product pulp at high speed and with the aid of a product- neutral adhesive specially developed for this purpose around a mandrel. The individual shapes and sizes are set by appropriate templates.

Product variants

The Steristoppers be suitable for all common internal diameter of 4 mm to 70 mm in 73 different versions normally hard by default, made ​​soft or extra hard. In addition, special plugs for outer diameter of 6, 12 and 14 mm for laboratory test tubes are produced as Steristoppers swab for gynecological screening for cancer antigen 125 as well as customized copies.