China Releases New Recycled Polyester Fiber Standard

SGS, the world’s leading testing, inspection and certification company, is advising stakeholders that the Standardization Administration of China has issued a new national standard covering the ecological technical requirements for recycled poly(ethylene terephthalate) fiber – GB/T 40351-2021 Ecological technical requirements for recycled Poly(ethylene terephthalate) fiber.

The standard follows increasing global demand for recycled polyester in the wake of the promotion of circular economies. It was included in China’s No. 11 announcement of approved national standards in 2021 and provides guidance to industry on the development and promotion of quality recycled polyester fibers.

It covers both:

  • Undyed recycled polyester
  • Spun-dyed recycled polyester

Manufacturers and users of other forms of recycled polyester can also refer to this document.

Recycled poly(ethylene terephthalate) fibers are made from recycled polyethylene terephthalate (PET) waste materials.

The standard includes technical requirements for:

  • pH value
  • Odor
  • Free and hydrolyzed formaldehyde content
  • Extractable heavy metal content
  • Volatile organic compounds
  • Residual surfactants
  • Polycyclic aromatic hydrocarbons (PAH)
  • Other chemical residues
  • Total phthalates
  • Total chlorobenzenes and chlorinated toluenes
  • Banned azo colorants
  • Carcinogenic dyestuffs
  • Allergenic dyestuffs
  • Other harmful dyestuffs

The new standard came into effect on March 1, 2022.

SGS Softlines Services

SGS has a worldwide network of over 40 state-of-the-art laboratories, including 10 in China, specializing in testing of apparel, footwear, and home textiles. Their committed team is drawn from multi-disciplinary backgrounds, allowing them to conduct a comprehensive range of physical, chemical, and functional testing services for components, materials and finished products. SGS helps companies ensure quality, performance, and compliance with international, industrial, and regulatory standards worldwide. In the end, it’s only trusted because it’s tested. Learn more about SGS’s Softlines Services.

SGS SafeGuardS keep you up to date with the latest news and developments in the consumer goods industry. Read the full New Ecological Technical Requirements for Recycled Poly(ethylene terephthalate) Standard in China SafeGuardS.

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For further information contact:

Louann Spirito

Consumer and Retail — Softlines

US & Canada Softlines Business Head

Tel: +1 973 461 7919



LinkedIn: sgs-consumer-goods-&-retail

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