Plastic film inspection service

Plastic Film Inspection Service for Global Packaging and Industrial Applications

As an ISO/IEC 17025 accredited laboratory, we deliver a comprehensive plastic film inspection service that verifies mechanical strength, optical clarity, barrier properties, thermal stability, and chemical compliance. Our plastic film inspection service supports manufacturers and exporters of polyethylene, polypropylene, PVC, polyester, and multi-layer films who must demonstrate conformity to ASTM, ISO, EN, and regional regulations across the European Union, North America, the Middle East, and Asia. Every test is performed under our CNAS-accredited quality system, producing reports accepted by customs authorities, notified bodies, and global procurement teams.

Product Samples We Regularly Test in Our Plastic Film Inspection Service

Polyethylene films — LDPE, LLDPE, MDPE, and HDPE for packaging, agricultural, and construction applications
Polypropylene films — cast, biaxially oriented, and metallized PP for food packaging and labels
Polyvinyl chloride films — rigid and flexible PVC for pharmaceutical blister packs and shrink sleeves
Polyester films — BOPET for flexible packaging, electrical insulation, and solar backsheets
Polyamide films — nylon 6 and nylon 66 for vacuum pouches and retort packaging
Multi-layer barrier films — coextruded and laminated films with EVOH or PVDC barrier layers
Stretch and cling films — for pallet wrapping, silage baling, and food overwrap
Anti-static and conductive films — for electronic component packaging and cleanroom use
Biodegradable and compostable films — PLA, PBAT, and starch-based films for sustainable packaging

Physical and Mechanical Property Testing of Plastic Films

Tensile strength, elongation at break, and modulus per ISO 527-3 and ASTM D882 — measuring the force, stretch, and stiffness of the film in machine and transverse directions to ensure it can withstand printing, laminating, and packaging machine stresses without yielding or tearing.
Tear resistance by Elmendorf method per ISO 6383-2 and ASTM D1922 — the force required to propagate a tear from a controlled slit is measured, verifying the film's resistance to puncturing and catastrophic splitting during handling and transport.
Dart drop impact resistance per ASTM D1709 and ISO 7765-1 — a weighted dart is dropped onto the film to measure the energy required to cause failure, simulating the impact of product corners and sudden shock loads on the packaged film.
Puncture and probe resistance per ASTM D5748 and EN 14477 — a probe is driven through the film at a controlled rate to determine the puncture force and elongation, critical for films used in sharp-edged product wrapping.
Coefficient of friction per ISO 8295 and ASTM D1894 — the static and dynamic friction coefficients are measured to control film slip behaviour on automatic filling and sealing lines, preventing blocking and mis-feeds.
Stiffness and secant modulus per ISO 527-3 and ASTM D882 — the film's resistance to bending and initial stretching is quantified for predicting web handling, die-cutting, and lay-flat performance.

Optical and Surface Quality Inspection for Plastic Films

Haze and total luminous transmittance per ASTM D1003 and ISO 14782 — the percentage of scattered light and the total light transmitted through the film are measured using a spectrophotometer with an integrating sphere, ensuring clarity and visual appeal for retail packaging.
Gloss at specified angles per ASTM D2457 and ISO 2813 — specular reflectance at 20°, 45°, or 60° angles is measured to quantify the surface shine and to match the aesthetic requirements of the brand or end-use.
Color measurement and color difference per ASTM E308, ISO 7724, and CIE L*a*b* — spectrophotometric determination of colour coordinates and delta E values to verify colour consistency across film batches and to ensure printed graphics reproduce accurately.
Surface energy and wetting tension per ASTM D2578 and ISO 8296 — dyne pen or contact angle measurement confirms that corona, flame, or plasma treatment has achieved the required surface energy for ink adhesion and lamination bonding.
Visual defect inspection under D65 illumination — systematic examination for gels, specks, fisheyes, streaks, and die lines that would impair the film's appearance or functional integrity in demanding applications.

Barrier Performance Testing in Our Plastic Film Inspection Service

Oxygen transmission rate per ASTM D3985 and ISO 15105-2 — the oxygen permeability of the film is measured using a coulometric sensor at controlled temperature and humidity, verifying the oxygen barrier needed to extend the shelf life of oxygen-sensitive foods and pharmaceuticals.
Water vapor transmission rate per ASTM F1249 and ISO 15106-2 — a modulated infrared sensor measures the moisture vapor transmission rate to confirm the film provides the required moisture barrier for the intended product and storage conditions.
Carbon dioxide and nitrogen transmission rate per ASTM F2476 and internal methods — for modified atmosphere packaging films, the permeability to CO2 and N2 is measured to predict the package headspace composition changes over shelf life.
Aroma and solvent barrier by gravimetric permeation cells — the film's ability to retain flavour compounds and resist penetration by organic solvents is evaluated using a sealed cup method with analytical balance or GC detection.

Thermal and Dimensional Stability Testing of Plastic Films

Differential scanning calorimetry per ISO 11357-3 and ASTM D3418 — melting temperature, glass transition, and crystallinity are measured to define the processing window for heat sealing, thermoforming, and shrink operations.
Dimensional stability under heat per ASTM D1204 and ISO 11501 — the film is exposed to elevated temperature and the percentage linear shrinkage or expansion is recorded to verify that the film remains stable during hot filling, retort, or warm storage.
Vicat softening point and heat deflection temperature per ISO 306 and ISO 75-2 — the temperature at which the film begins to soften under load is determined to predict performance in high-temperature applications.
Low-temperature flexibility and brittleness per ASTM D1790 and ISO 8570 — the film is conditioned at sub-zero temperatures and then bent or impacted to ensure it remains flexible and does not crack during frozen food packaging or cold chain transport.
Heat seal strength and hot tack per ASTM F88 and ASTM F1921 — the force required to peel a heat seal and the strength of the seal while still hot are measured to validate the film's sealing performance on high-speed form-fill-seal machines.

Chemical Safety and Regulatory Compliance Testing for Plastic Films

RoHS compliance per IEC 62321 and EU Directive 2011/65/EU — quantitative screening for lead, mercury, cadmium, hexavalent chromium, PBBs, and PBDEs in the film, pigments, and printed layers, ensuring the film meets substance restrictions for electronic product packaging.
REACH Annex XVII and SVHC screening — targeted analysis of Substances of Very High Concern including specific phthalate plasticizers, organotin stabilizers, and short-chain chlorinated paraffins present in the plastic film formulation.
Phthalates and plasticizers per CPSC-CH-C1001-09.4 and EN 14372 — GC-MS determination of the six restricted phthalates in flexible PVC and other plasticized films for children's products and food contact applications.
Heavy metals in packaging per EU Directive 94/62/EC — verification that the sum concentration of lead, cadmium, mercury, and hexavalent chromium is below 100 ppm for the film and its packaging.
Overall migration and specific migration for food contact per EU Regulation 10/2011 and FDA 21 CFR — the plastic film is exposed to food simulants under time and temperature conditions representative of the intended use, and the total extractable mass and specific levels of restricted monomers or additives are quantified.
Polycyclic aromatic hydrocarbons per AfPS GS 2019:01 PAK — for carbon-black-coloured or recycled-content films, the 15 restricted PAHs are extracted and quantified to confirm compliance with European product safety limits.
Halogen content by combustion ion chromatography per EN 14582 — the total fluorine, chlorine, bromine, and iodine content is measured to support halogen-free declarations for environmentally conscious packaging and electronics manufacturing.

Report Recognition and ISO/IEC 17025 Compliance

All methods described in this plastic film inspection service are included within our ISO/IEC 17025 scope of accreditation. Our test reports are accepted by European notified bodies for food contact materials and packaging waste compliance, by North American retailers and brand owners referencing ASTM and ISTA standards, and by regulatory and customs authorities across the Gulf, Australia, and Asia Pacific. Whether you require a complete qualification dossier for a new plastic film, a batch release inspection for an import shipment, or a root cause investigation of a film performance defect, our laboratory provides the measurement accuracy and technical depth that the global plastics and packaging industries demand.