SAB Labs is Pakistan's leading ISO-certified wool testing laboratory in Karachi. We provide accurate fiber composition analysis, tensile strength, shrinkage, RSL compliance, and color fastness testing for textile exporters and manufacturers. Our results are accepted by international buyers worldwide — including suppliers of H&M, Primark, and Marks & Spencer.

What is Wool Testing & Why Does Your Business Need It?

Wool testing is the scientific analysis of wool fiber properties — from chemical composition to physical performance. For Pakistani textile exporters and manufacturers, it is not optional. It is a legal and commercial requirement for accessing international markets.

Without certified wool test reports, your shipment can be rejected at customs, your buyer can cancel the order, and you can face financial penalties. International brands like H&M, Primark, Marks & Spencer, and Zara all require RSL-compliant test certificates before accepting wool-based products from their suppliers.

SAB Labs, as an IWTO and ISO-aligned wool testing lab in Karachi, Pakistan, provides the certifications your business needs to access EU, US, and Middle Eastern markets with complete confidence.

Export Compliance & Buyer Requirements

International buyers require ISO-certified test reports before accepting wool shipments. SAB Labs reports are accepted by EU, US, and Gulf market buyers without question.

RSL & Chemical Safety Compliance

RSL testing ensures your wool products are free from harmful chemicals — a strict requirement for brands like H&M, Primark, and Marks & Spencer. Failure to comply results in shipment rejection and order cancellation.

Quality Assurance & Brand Protection

Regular wool testing protects your brand from quality disputes, customer complaints, and costly product recalls. Know what you are selling before your buyer does.

TDAP & Government Tender Requirements

TDAP export programs and government tenders require third-party lab certification for textile materials including wool and blended fabrics. SAB Labs reports are recognized for these submissions.

Wool Testing Services at SAB Labs Karachi

Comprehensive wool and fiber testing under one ISO-accredited roof. All tests follow internationally recognized IWTO, ISO, and ASTM standards accepted by global buyers and regulatory authorities.

1. Wool Fiber Composition Analysis

Identifies exact fiber content — pure wool percentage, blended materials (polyester, acrylic, nylon), and foreign fiber contamination. Essential for product labelling compliance in EU and US markets.

Standard: IWTO-08 / ISO 1833

2. Tensile Strength & Elongation Testing

Measures how much force wool fabric or yarn can withstand before breaking. Critical for performance textiles, sportswear, and military-grade wool products. Indicates durability and wear resistance.

Standard: ISO 13934-1 / ASTM D5034

3. Wool Shrinkage Testing

Determines dimensional change after washing — one of the most common reasons for buyer complaints. We test using Superwash and machine washability standards for accurate, buyer-accepted results.

Standard: IWTO-31 / ISO 6330

4. Color Fastness Testing

Tests dye stability against washing, rubbing, light, sweat, and dry cleaning. Prevents costly product returns due to color bleeding. Required by all major apparel buyers for dyed wool fabrics and garments.

Standard: ISO 105 Series / AATCC

5. RSL Chemical Testing for Wool

RSL testing screens wool for formaldehyde, heavy metals, pesticides, azo dyes, pH levels, and other hazardous chemicals banned by EU REACH and major brand standards including ZDHC and OEKO-TEX.

Standard: EU REACH / OEKO-TEX / ZDHC

6. Pilling Resistance & Abrasion Testing

Measures how quickly wool fabric forms pills during use — a key quality indicator for sweaters, blankets, and upholstery. Results directly impact product ratings and buyer acceptance criteria.

Standard: ISO 12945 / ASTM D3512

Our Wool Testing Process — Step by Step

Simple, transparent, and fast. Here is exactly what happens from the moment you contact SAB Labs to the delivery of your certified wool test report.

• Step 1 — Contact & Inquiry: Call, WhatsApp, or fill the quote form. Tell us what tests you need and we will advise the best package.
• Step 2 — Sample Submission: Drop off or courier wool samples to our Karachi lab at North Karachi Industrial Area. Pickup can also be arranged.
• Step 3 — Lab Analysis: Our qualified technicians test your samples using calibrated, ISO-standard equipment under controlled conditions.
• Step 4 — Report Generation: Detailed test reports with all parameters, results, pass/fail status, and standard references.
• Step 5 — Report Delivery: Reports emailed in 5–7 working days. Expedited service available in 2–3 days on request.

Pakistan's Most Trusted Wool Testing Laboratory in Karachi

When your business depends on accurate, internationally accepted test results, you cannot afford to choose the wrong lab. Here is why 141+ companies trust SAB Labs for their wool testing needs.

• ISO/IEC 17025 Accredited: Our accreditation means reports are legally accepted by buyers worldwide, customs authorities, and regulatory bodies.
• State-of-the-Art Equipment: Modern, regularly calibrated instruments ensure accurate, repeatable results that stand up to international scrutiny.
• Fast 5–7 Day Turnaround: Export deadlines are tight. Standard results in 5–7 days; expedited service available in 2–3 days on request.
• Expert Technical Team: Qualified lab technicians with years of experience in IWTO-standard wool analysis and compliance testing.
• Karachi & Lahore Labs: Two conveniently located labs in Pakistan's two biggest industrial cities — serving clients nationwide.
• 141+ Satisfied Clients: Textile exporters, manufacturers, and brands trust our reports for export compliance and quality assurance.

Wool Testing Standards We Follow

All tests are conducted under globally recognized, buyer-accepted international standards.

What Our Clients Say About SAB Labs Wool Testing

Real feedback from textile exporters and manufacturers across Pakistan who rely on SAB Labs for their wool testing and export compliance needs.

"We have been relying on SAB Labs for wool fiber composition and RSL testing for over a year. Their reports are consistently accurate and our European buyer has never raised a single query. Excellent professional service."

— Umar Javeed, Textile Export Manager, Karachi

"SAB Labs is our go-to lab for all wool and blended fabric testing. Reliable, professional, and their turnaround time is better than any other lab we have used in Pakistan. Highly recommended for exporters."

— Kiran Baloch, QC Manager, Garment Factory, Lahore

"We needed urgent wool shrinkage and color fastness testing before a shipment deadline. SAB Labs delivered the expedited report in 3 days — accurate and fully formatted for our buyer. Absolutely reliable."

— Ali Haider, Director, Wool Products Company, Karachi

Frequently Asked Questions About Wool Testing in Karachi

Everything you need to know before submitting your wool samples to our lab.