Nilit plans to get its nylon yarns tested regularly to ensure they are free from harmful substances - a requirement the company believes is essential for products used in garments worn next to the skin. 

The company, which makes nylon 6.6 for the intimate apparel, legwear, swim, and activewear markets, will get its products certified by the Oeko-Tex Standard 100.

This independent and verifiable certification tests fibres, yarns, fabrics, and manufactured products of all kinds for harmful levels of more than 100 substances.

"Since our yarns are used in close-to-the-body garments, we have always been very sensitive to ensuring that our products do not contain any chemicals that could be potentially harmful to the end wearer," sais Molly Kremidas, Nilit's US marketing director.

"We believe it's our responsibility to provide that reliable assurance to our customers."

The Oeko-Tex Standard 100 test criteria include banned or regulated substances and chemicals that are known to be harmful to human health, and is updated constantly to stay abreast of changes in textile processing chemistry.

To verify that certification standards are maintained, test samples are routinely pulled from retail and tested for compliance.