What are textile testing labs in India and when should wholesale buyers use them?

Textile testing laboratories perform scientific tests on fabric and garment samples to verify their composition, physical properties, and safety compliance. In India, the following are the main accredited labs:

• SITRA (South India Textile Research Association): Coimbatore — one of the most comprehensive
• ATIRA (Ahmedabad Textile Industry Research Association): Ahmedabad
• BTRA (Bombay Textile Research Association): Mumbai
• SGS India, Bureau Veritas, Intertek: Global testing agencies with Indian labs

Common tests available:

• Fibre content analysis (confirms "100% cotton" claim)
• Colour fastness (wash, rub, light fastness)
• GSM and weight measurement
• Shrinkage testing
• pH testing (skin safety)
• Harmful substance testing (azo dyes, formaldehyde)

When to use: Export shipments, premium product authentication, or when a supplier's fibre content claim seems suspicious.