EN ISO 11721-1 Textiles - Determination of the Resistance of Textiles Containing Cellulose to Microorganisms - Part 1: Evaluation of Antifouling Finish

Material Testing

EN ISO 11721-1 Textiles - Determination of the Resistance of Textiles Containing Cellulose to Microorganisms - Part 1: Evaluation of Antifouling Finish

EUROLAB laboratory provides testing and compliance services within the scope of EN ISO 11721-1 standard. This part of the EN ISO 11721 standard specifies a method for determining the resistance of chemically pretreated textiles to the action of microorganisms present in the soil compared to untreated textiles.

EN ISO 11721-1 Textiles - Determination of the Resistance of Textiles Containing Cellulose to Microorganisms - Part 1: Evaluation of Antifouling Finish

This method can be applied to plain textiles made of cellulosic-containing yarns (tentage, tarpaulin, webbing and tapes) that will typically come into contact with the soil during use.

Because of the inherent resistance of most synthetic fibers to attack by microorganisms, fabrics with a high content of synthetic fibers can only be evaluated for changes in structure and appearance by these methods.

Although this method allows for good reproducibility of results, it is intended for comparative performance rather than providing absolute values. Heavy tarpaulin fabrics and woven fabrics may be of such a nature that unfinished samples can be resistant within a 14-day soil burial period. Also in such cases, the decay rate of the untreated sample determines the length of the embedding period.

Textiles containing cellulose are considered resistant to attack by microorganisms present in the soil if their structure, appearance and tensile strength have not been substantially altered after the soil burial test. Resistance to deterioration is assessed by measuring the relative decrease in tensile strength between buried and unburied samples.

If long-term resistance assessment is required, the procedure described in ISO 11721-2 applies. Due to the biological nature of the soil burial test and the test soil not being fully standardized, this standard is only intended to evaluate a fabric's resistance to micro-organisms after comparing the performance of finished and unfinished samples.

This standard specifies a method for determining the resistance of chemically pretreated textiles to the action of microorganisms present in the soil compared to untreated textiles. This method is applicable to plain textiles made of cellulosic-containing yarns (tentage, tarpaulin, webbing and tapes) that will typically come into contact with the soil during use.

EUROLAB, with its more than 25 years of experience, state-of-the-art accredited laboratories and expert team, helps you get precise and fast results. Do not hesitate to contact our laboratory for your testing and certification requests.

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