UNLIMITED FREE ACCESS TO THE WORLD'S BEST IDEAS

close
Already an Engineering360 user? Log in.

This is embarrasing...

An error occurred while processing the form. Please try again in a few minutes.

Customize Your Engineering360 Experience

close
Privacy Policy

This is embarrasing...

An error occurred while processing the form. Please try again in a few minutes.

DIN EN ISO 20697

Sterile drainage catheters and accessory devices for single use (ISO 20697:2018)

inactive
Buy Now
Organization: DIN
Publication Date: 1 October 2018
Status: inactive
Page Count: 46
ICS Code (Syringes, needles and catheters): 11.040.25
scope:

This document specifies a qualitative and quantitative testing method to determine the content of wool, cashmere, yak fibres and their blends in textiles by microscope preliminary screening, protein extraction, enzymatic digestion and specific peptides detection using a liquid chromatography-mass spectrometer equipped with electrospray ionization source (LCI-ESI-MC).

This method can be applied to relevant textile products at each process stage (i.e. from raw material to garment) with a homogeneous distribution of the components. It can be applied to different types of textile materials (e.g. staples, tops, yarns and fabrics) that contain wool, cashmere or yak fibres and their blends. The method is based on a preliminary identification of all fibres in the blend on the basis of their morphology, by light microscopy. The proteins are then extracted by a thiourea/urea/dithiothreitol (DTT) solution. An enzymatic digestion by trypsin of the protein extracted from the fibres is carried out. Analysis of the specific markers is performed by LC-MS and the percent composition is calculated

This method is applicable to samples containing other kinds of fibres than wool, cashmere and yak, by combining its results with the results obtained using the ISO 1833 series and/or the ISO 17751 series.

This document does not apply if fibres of the same animal species are present (e.g. blends of cashmere and mohair); in this case, the quantitative analysis can be performed using microscopic analysis (e.g. ISO 17751 series).

Document History

April 1, 2019
Sterile drainage catheters and accessory devices for single use (ISO 20697:2018, Corrected version 2018-09)
A description is not available for this item.
DIN EN ISO 20697
October 1, 2018
Sterile drainage catheters and accessory devices for single use (ISO 20697:2018)
This document specifies a qualitative and quantitative testing method to determine the content of wool, cashmere, yak fibres and their blends in textiles by microscope preliminary screening, protein...
March 1, 2017
Sterile drainage catheters and accessory devices for single use (ISO/DIS 20697:2017); German and English version prEN ISO 20697:2017
A description is not available for this item.

References

Advertisement