International Standard
The International Wool Textile Organisation (IWTO) is the promulgator of the Fabric Labelling Code of Practice which governs the use the "S" and "Super S" designations for fine wool and wool blend fabrics. The Code defines the S number by correlation to maximum fiber diameter. For example, 80s must have maximum fiber diameter of 19.75 micrometres or finer and 90s, 19.25 micrometres or finer. This scale continues to the 210s at 13.25 micrometre or finer. Thus each step of ten (as from 80s to 90s or 90s to 100s) corresponds to 0.5 micrometre less in allowed maximum fiber diameter. It has been proposed to extend the scale to 250s at 11.25 micrometre or finer.
IWTO is the international body representing the interests of the world's wool textile trade and industry. IWTO membership covers wool growers, traders, primary processors, spinners, weavers, garment makers and retailers of wool and allied fibers in its member-countries, as well as all kinds of organizations related to wool products and the wool business in general.
Read more about this topic: S Number (wool)
Famous quotes containing the word standard:
“[The Declaration of Independence] meant to set up a standard maxim for free society, which should be familiar to all, and revered by all; constantly looked to, constantly labored for, and even though never perfectly attained, constantly approximated, and thereby constantly spreading and deepening its influence, and augmenting the happiness and value of life to all people of all colors everywhere.”
—Abraham Lincoln (1809–1865)