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  • ISO/IEC 17025 Accredited

Textile Testing Laboratory in Pakistan

SAB Labs is a PNAC accredited textile testing laboratory (ISO/IEC 17025:2017, Accreditation No: LAB 185) with 50 accredited physical tests and 15 accredited chemical tests. We verify the strength, durability, chemical safety, and colorfastness of fibers, yarns, fabrics, and finished garments before commercial shipment.
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LAB-185

PNAC Accredited ISO/IEC 17025 (65 Accredited Tests)

50 kN

Tensile Strength Testing

3–5 Day

Standard Turnaround

12–24 hours

Same-Day Express Testing

Why Manufacturers and Exporters Choose SAB Labs

SAB Labs serves as the technical evaluation partner for textile mills, spinning units, and apparel exporters across Pakistan. Our accredited laboratory supports denim manufacturing, terry towel processing, knitwear production, apparel assembly, home furnishings, and military uniform procurement.

Three reasons exporters partner with an accredited textile testing lab:

1. Production quality validation that prevents buyer rejections at destination ports.

2. Regulatory clearance through accredited test reports accepted by international customs authorities.

3. Brand protection against consumer safety risks, liability claims, and supply chain compliance failures.

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Textiles Testing Services

PNAC Accredited Test Scope Under LAB 185

Every test below falls within our formal PNAC accredited scope under ISO/IEC 17025:2017. Results for these tests are issued on accredited reports bearing the PNAC accreditation mark.

Tensile, Tear and Bursting Strength (10 Accredited Methods)

Test Standard
Tensile Strength, Strip Method ISO 13934-1:2013
Tensile Strength, Grab Method ISO 13934-2:2014
Breaking Strength, Grab Method ASTM D5034-21
Tear Strength, Ballistic Pendulum ISO 13937-1:2000
Tear Strength, Trouser Method ISO 13937-2:2000
Elmendorf Tear Strength ASTM D1424-21
Bursting Strength, Hydraulic ISO 13938-1:2019
Bursting Strength, Pneumatic ISO 13938-2:2019
Bursting Strength, Diaphragm ASTM D3786/D3786M-18
Stretch and Recovery ASTM D3107-07(2019)

Seam Performance (4 Accredited Methods)

Test Standard
Seam Slippage, Fixed Opening ISO 13936-1:2004
Seam Slippage, Fixed Load ISO 13936-2:2004
Seam Strength, Strip Method ISO 13935-1:2014
Seam Strength, Grab Method ISO 13935-2:2014

Abrasion, Pilling and Surface Wear (4 Accredited Methods)

Test Standard
Pilling Resistance, Martindale ISO 12945-2:2020
Pilling Resistance, Random Tumble ASTM D3512/D3512M-16
Abrasion Resistance, Mass Loss ISO 12947-2:2016
Abrasion Resistance, Appearance Change ISO 12947-4:1998

Dimensional Stability, Fabric Properties and Construction (10 Accredited Methods)

Test Standard
Shrinkage after Washing ISO 6330:2021 with ISO 5077:2007
Shrinkage after Dry Cleaning ISO 3175-2:2017 with ISO 5077:2007
Bow and Skew AATCC TM 179-2019
Spirality and Torque AATCC TM 187-2013
Crease Recovery Angle ISO 2313-1:2021
Wrinkle Recovery, Appearance AATCC TM 128-2018
Fabric Stiffness and Drape ASTM D1388-18
Mass Per Unit Area (GSM) ISO 3801:1977
Threads Per Unit Length (EPI/PPI) ISO 7211-2:1984
Fabric Thickness ISO 5084:1996

Yarn Testing (4 Accredited Methods)

Test Standard
Yarn Count, Linear Density ASTM D1907/D1907M-12(2018)
Single Strand Tensile Strength ASTM D2256/D2256M-21
Twist Per Unit Length ISO 17202:2002
Yarn Evenness (CV%) ISO 16549:2004

Functional Performance (4 Accredited Methods)

Test Standard
Spray Test, Water Repellency ISO 4920:2012
Hydrostatic Head, Water Resistance AATCC TM 127-2013
Air Permeability ISO 9237:1995
Soil Release AATCC TM 130-2010

Fiber Identification and Composition (2 Accredited Methods)

Test Standard
Qualitative Fiber Identification ISO 1833 series
Quantitative Fiber Composition ISO 1833 series

Colorfastness (12 Accredited Methods)

Test Standard
Colorfastness to Washing ISO 105-C06:2010
Colorfastness to Water ISO 105-E01:2013
Colorfastness to Sea Water ISO 105-E02:2013
Colorfastness to Chlorinated Water ISO 105-E03:2010
Colorfastness to Perspiration ISO 105-E04:2013
Colorfastness to Rubbing (ISO) ISO 105-X12:2016
Colorfastness to Rubbing (AATCC) AATCC TM 8-2016
Colorfastness to Light ISO 105-B02:2014
Colorfastness to Dry Cleaning ISO 105-D01:2010
Colorfastness to Hot Pressing ISO 105-X11:1994
Colorfastness to Burnt Gas Fumes ISO 105-G02:1993
Colorfastness to Chlorinated Water ISO 105-E03:2010

Chemical Safety (15 Accredited Methods)

Test Standard What It Measures
pH of Aqueous Extract ISO 3071:2020 Surface acidity or alkalinity
Free and Hydrolyzed Formaldehyde ISO 14184-1:2011 Formaldehyde released in water extraction
Formaldehyde, Vapor Absorption ISO 14184-2:2011 Formaldehyde released into air
Banned Azo Dyes, Certain Amines ISO 14362-1:2017 24 EU restricted aromatic amines
Banned Azo Dyes, 4-Aminoazobenzene ISO 14362-3:2017 Specific carcinogenic amine detection
Note: The remaining 10 accredited chemical methods cover additional analytical parameters. View the complete list on our accreditation page.
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  • Testing Services

Textile & Apparel Testing Service

These baseline services cover every stage from raw fiber to finished garment. All physical and chemical tests within our PNAC accredited scope are issued on accredited reports bearing the LAB 185 mark.

Fiber Testing

Physical and chemical evaluation of natural and synthetic staple fibers including staple length, tensile breaking force, micronaire value, fiber maturity ratio, moisture regain, and fiber identification using the accredited ISO 1833 series.
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Yarn Testing

Performance profiling of single and plied yarns covering tensile strength (ASTM D2256), twist per unit length (ISO 17202), yarn count (ASTM D1907), and evenness (ISO 16549).
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Fabric Testing

Mechanical and surface performance testing for knits and wovens covering tensile strength (ISO 13934), tear (ISO 13937, ASTM D1424), bursting (ISO 13938), Martindale abrasion (ISO 12947), pilling (ISO 12945-2), and dimensional stability (ISO 6330).
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Garment Testing

Finished apparel evaluation covering seam slippage (ISO 13936), seam strength (ISO 13935), button and trim pull-off resistance, fit consistency, and appearance retention after laundering.
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Wool Testing

Fiber diameter measurement, staple length, tensile strength, and VMB clean yield for quality grading, production consistency, and compliance with buyer specifications.
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Functional Testing of Textiles

Technical textile and activewear assessments covering spray rating water repellency (ISO 4920), hydrostatic head (AATCC TM 127), air permeability (ISO 9237), soil release (AATCC TM 130), and wrinkle recovery (AATCC TM 128).
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Chemical, Analytical & Eco-Compliance Services

Regulatory and ecological screening for international customs clearance and buyer RSL compliance. Core chemical tests for pH, formaldehyde, and banned azo dyes are within our PNAC accredited scope.

Restricted Substances List (RSL) Testing

Aqueous extract pH (ISO 3071), formaldehyde content (ISO 14184-1 and ISO 14184-2), and banned azo dye screening (ISO 14362-1 and ISO 14362-3). Accredited results issued with the PNAC mark.
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Chemical Testing

Hazardous substance screening against global brand protocols, US CPSIA directives, and buyer-specific restricted substances lists covering heavy metals, phthalates, APEO, and additional restricted chemicals.
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Analytical Testing

Instrumental chromatography and spectrometry (GC-MS, HPLC, UV-Vis) for unknown additive identification, trace heavy metal detection, and quantitative chemical profiling.
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Supply Chain, Packaging and Allied Services

Specialized testing and support services beyond our accredited textile scope. Results for these services are issued on SAB Labs professional letterhead with full method references.

Corrugated Box & Packaging Testing

Export carton validation using Edge Crush Tests (ECT), Box Compression Tests (BCT), and Mullen bursting strength for ocean transport durability.
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Water and Effluent Testing

Textile wet-processing intake water and factory discharge analysis for COD, BOD, total suspended solids, heavy metals, and ZDHC wastewater guideline compliance.
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Microbial & Antibacterial Testing

Antibacterial efficacy (AATCC 100 / ISO 20743), anti-odor performance, bioburden analysis, and mold and fungi resistance evaluation for treated fabrics.
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ZWICK Lab Mechanical Testing

High-load stress-strain, elongation, and mechanical testing using calibrated ZWICK universal testing machinery for technical textiles, webbing, and industrial fabrics.
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Elevate Training, Quality Consultancy & R&D

Laboratory staff training, factory audit readiness consulting, ISO/IEC 17025 implementation support, and collaborative R&D for sustainable textile development.
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International Standards and Export Compliance

Compliance verification enables frictionless customs clearance and eliminates buyer chargebacks, shipment rejections, and port detentions.

Standard Body Region Testing Focus SAB Labs Scope Status
ISO International Physical, chemical, colorfastness ISO 13934, 13937, 13938, 13936, 13935, 12945-2, 12947, 6330, 5077, 3801, 7211-2, 5084, 4920, 9237, 1833, 105 series, 3071, 14184, 14362 PNAC Accredited
ASTM United States / Global Tensile, tear, burst, yarn, pilling ASTM D5034, D1424, D1388, D1907, D2256, D3107, D3512, D3786 PNAC Accredited
AATCC United States Colorfastness, water resistance, dimensional stability AATCC TM 8, TM 127, TM 128, TM 130, TM 179, TM 187 PNAC Accredited
BS EN United Kingdom / EU Chemical migration, abrasion EN ISO 14362, EN ISO 12947 PNAC Accredited
CPSC United States Flammability (16 CFR 1610), lead, phthalates US children's safety scope Additional Service
GB China GB 18401 / GB 31701 safety thresholds pH, formaldehyde, azo dyes, colorfastness Additional Service
SASO Saudi Arabia / Gulf Textile import regulations SASO conformity verification Additional Service
AS/NZS Australia / New Zealand UPF, mechanical strength, care labeling AS/NZS textile frameworks Additional Service
KS South Korea KC Mark, hazardous substance screening Korean import conformity Additional Service
DIN Germany Construction and performance DIN textile test methods Additional Service
Note: Tests marked "PNAC Accredited" are within our formal accredited scope under LAB 185 and results carry the PNAC accreditation mark. Tests marked "Additional Service" are performed using validated international methods with results on SAB Labs professional letterhead.
EU REACH, ZDHC MRSL and OEKO-TEX Screening

SAB Labs screens raw materials, dyestuffs, and finished textiles against the industry’s strictest chemical restrictions:

EU REACH: Compliance screening against Annex XVII of Regulation (EC) No 1907/2006 for phthalates, short-chain chlorinated paraffins (SCCP), polycyclic aromatic hydrocarbons (PAH), and alkylphenol ethoxylates (APEO/NPEO).

ZDHC MRSL: Analytical screening to verify input formulations comply with ZDHC Manufacturing Restricted Substances List V3.1 thresholds for sustainable wastewater management.

OEKO-TEX Standard 100 Support: Product screening for pesticides, chlorinated phenols, organic tin compounds, and allergenic disperse dyes across Product Classes I through IV.

Our testing supports preparation for OEKO-TEX certification by verifying the relevant chemical parameters.

Global retailers enforce testing manuals that frequently surpass federal laws. SAB Labs tests finished goods against buyer-specific matrices for major US, UK, and EU retail brands, verifying compliance with CPSIA, 16 CFR 1610, and EN 71 requirements.

Third-Party Quality Audits and Inspection

SAB Labs provides independent inspection across Pakistan’s industrial manufacturing hubs to verify product quantity, packaging, labeling, and craftsmanship before export dispatch.

1

Pre-Production and Raw Material Inspection

Quality auditors inspect greige and processed fabric rolls using the international 4-Point System (ASTM D5430) for weaving flaws, yarn slubs, barre, hole defects, and color shading. Trims, interlinings, threads, zippers, and care labels undergo shade matching under D65 lighting, tensile stability checks, and dimensional verification before cutting.
2

During Production Inspection (DUPRO)

DUPRO takes place when 15% to 40% of the order is completed. Inspectors assess semi-finished units on the sewing lines for stitching defects, assembly errors, and sizing drift from approved tech packs. Root-cause feedback goes directly to factory floor managers for immediate correction.

3

Pre-Shipment Inspection (PSI / FRI) to AQL Standards

Final Random Inspection occurs when the order is 100% produced and 80% packaged. Sample quantities follow ISO 2859-1 (ANSI/ASQ Z1.4) at AQL 1.5 (critical), AQL 2.5 (major), and AQL 4.0 (minor). Inspections cover carton drop tests, weight verification, barcode scans, polybag warning label audits, and container loading supervision.

Why Choose SAB Labs for Textile testing

1. 65 PNAC Accredited Test Methods

Accredited by PNAC under LAB 185 with 50 physical and 15 chemical test methods for textiles, verified through regular proficiency testing and external assessment.

2. Calibrated Equipment in Controlled Conditions

All testing instruments maintain traceable calibration chains. Samples are conditioned in controlled standard atmospheres before every test.

3. 3 to 5 Day Turnaround

Standard reports delivered within 3 to 5 business days. Express testing available within 12 to 24 hours for urgent production and export needs.

4. QR-Code Verified Reports

Every test certificate includes a digital QR code for instant online verification. Accredited test reports additionally carry the PNAC accreditation mark.

Frequently Asked Questions (FAQs) About Textile Testing

Standard test reports are delivered within 3 to 5 business days from sample receipt. Express testing is available with results in 12 to 24 hours for urgent requirements.

SAB Labs tests textile products against global standards including AATCC, ASTM International, ISO, BS EN, DIN, and Chinese GB standards. Our laboratories configure test parameters to fulfill buyer-specific protocols for major retail chains across North America, the UK, Europe, and Australia.

A complete physical, chemical, and colorfastness testing package requires 1.5 linear meters (1.64 yards) of full-width fabric. For garment evaluation, submit 3 to 4 finished garments; for yarn testing, supply 2 full yarn bobbins (approximately 500 grams total).

Yes, SAB Labs provides complete chemical compliance testing for EU REACH Regulation (EC) No 1907/2006 and US Consumer Product Safety Commission (CPSC) requirements. Our analytical chemistry division tests for banned azo dyes, formaldehyde, lead, heavy metals, phthalates, and flammability under 16 CFR 1610.

SAB Labs tests shrinkage and torque in circular knitted fabrics by conditioning specimens under ISO 139 standard atmosphere, marking dimensional bench coordinates with precision templates, and subjecting them to standardized laundering cycles per AATCC 135 or ISO 6330. Technicians measure dimensional change to calculate shrinkage percentages, and evaluate angular seam displacement using ISO 16322-2 to calculate percentage spirality and torque.

Our PNAC accreditation (LAB 185) covers 65 textile test methods including tensile strength, tear, bursting, pilling, abrasion, seam performance, dimensional stability, 12 colorfastness evaluations, pH, formaldehyde, and banned azo dyes. The full accredited scope is listed above on this page and on our accreditation page. Tests outside this scope are performed using validated methods and issued on SAB Labs professional letterhead.

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