EVS-EN ISO 20136:2020

Leather - Determination of degradability by micro-organisms (ISO 20136:2020)

General information
Valid from 03.08.2020
Base Documents
ISO 20136:2020; EN ISO 20136:2020
Directives or regulations
Standard history
This document specifies a test method to determine the degree and rate of aerobic biodegradation of hides and skins of different animal origin, whether they are tanned or not, through the indirect determination of CO2 produced by the degradation of collagen. The test material is exposed to an inoculum (activated sludge from tannery wastewater) in an aqueous medium. If there is not a tannery nearby then urban wastewater can be used as the inoculum. The conditions established in this document correspond to optimum laboratory conditions to achieve the maximum level of biodegradation. However, they might not necessarily correspond to the optimum conditions or maximum level of biodegradation in the natural medium. In general, the experimental procedure covers the determination of the degradation degree and rate of the material under controlled conditions, which allows the analysis of the evolved carbon dioxide produced throughout the test. For this purpose, the testing equipment complies with strict requirements with regard to flow, temperature and agitation control. This method applies to the following materials: — natural polymers of animal stroma (animal tissue/skins); — animal hides and skins tanned (leather) using organic or inorganic tanning agents; — leathers that, under testing conditions, do not inhibit the activity of microorganisms present in the inoculum.
15.86 € incl tax
15.86 € incl tax
Price: 2.40 € incl tax
Standard monitoring
Customers who bought this item also bought

EVS-EN ISO 20645:2005

Textile fabrics - Determination of the antibacterial activity - Agar diffusion plate test
Newest version Valid from 09.02.2005

EVS-EN ISO 20743:2013

Textiles - Determination of antibacterial activity of textile products (ISO 20743:2013)
Newest version Valid from 09.09.2013

EVS-EN 16777:2018

Chemical disinfectants and antiseptics - Quantitative non-porous surface test without mechanical action for the evaluation of virucidal activity of chemical disinfectants used in the medical area - Test method and requirements (phase 2/step 2)
Newest version Valid from 03.01.2019

EVS-EN ISO 17703:2018

Footwear - Test methods for uppers - High temperature behaviour (ISO 17703:2003)
Newest version Valid from 02.11.2018