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INHERENT BIODEGRADABILITY OF WATER-RESISTANT GREASES

Jasmina Vržina

Sažetak

Abstract
In the process of establishing the biodegradability of water resistant greases by using the method applied to assess the resulting carbon dioxide, the analysis were proceeded according to the international norm ISO 14593 - CO2 headspace test and the CONCAWE test - method to assess the inherent biodegradability of oil products. The CONCAWE method of inherent biodegradability is a modified ISO 14593, which is used to obtain information on potential (inherent) biodegradability of otherwise non degradable substances and hence of their potential ecological acceptability. The modified ISO 14593 method consists in the pre-exposed inoculum applied to the test substance and the extended time of biodegradability test. This paper deals with an analysis of water insoluble greases on synthetic ester or vegetable oil basis, thickened either with a lithium soap or aluminium silicate.

Ključne riječi

Biodegradability testing of materials; Water-resistant greases; Biodegradability; Metabolism and biochemistry of microorganisms

Hrčak ID:

9556

URI

https://hrcak.srce.hr/9556

Datum izdavanja:

28.12.2001.

Podaci na drugim jezicima: hrvatski

Posjeta: 1.952 *