<p>ISO 1833-7:2017 specifies a method, using formic acid, to determine the mass percentage of polyamide fibre, after removal of non-fibrous matter, in textiles made of mixtures of</p>
<p>- polyamide</p>
<p>with</p>
<p>- cotton, viscose, cupro, modal, lyocell, polyester, polypropylene, chlorofibre, acrylic, glass fibre, elastomultiester, elastolefin and melamine, or</p>
<p>- wool (if the wool content is less than or equal to 25 %), or animal hair fibres.</p>
<p>ISO 1833-7:2017 does not apply when the wool content exceeds 25 %; ISO 1833-4 applies.</p>
Registration number (WIID)
70285
Scope
<p>ISO 1833-7:2017 specifies a method, using formic acid, to determine the mass percentage of polyamide fibre, after removal of non-fibrous matter, in textiles made of mixtures of</p>
<p>- polyamide</p>
<p>with</p>
<p>- cotton, viscose, cupro, modal, lyocell, polyester, polypropylene, chlorofibre, acrylic, glass fibre, elastomultiester, elastolefin and melamine, or</p>
<p>- wool (if the wool content is less than or equal to 25 %), or animal hair fibres.</p>
<p>ISO 1833-7:2017 does not apply when the wool content exceeds 25 %; ISO 1833-4 applies.</p>
