Regulations and Standards for Recycled Plastics
Expert-defined terms from the Advanced Skill Certificate in Recycled Plastics for Automotive Sector course at London School of Planning and Management. Free to read, free to share, paired with a professional course.
ASTM D7619 – Standard Test Method for Determination of Melt Flow Index of… #
Related terms: Melt flow index, rheology, polymer grading. This ASTM method quantifies the flow characteristics of recycled polymer granules, essential for matching material to injection‑molding equipment. Practical use: Verifying that recycled polypropylene (rPP) meets the melt flow required for automotive interior clips. Challenge: Variability in source material can cause wide index ranges, demanding tighter sorting.
ASTM D7618 – Standard Test Method for Determining the Melt Flow Rate of R… #
Related terms: Capillary rheometer, viscosity, processing window. The capillary test provides a more precise viscosity profile than the simple melt flow index, helping engineers design screw profiles for extrusion of rPET in under‑hood wiring harnesses. Challenge: Equipment cost and the need for skilled operators.
ASTM D6400 – Standard Specification for Compostable Plastics #
Related terms: Biodegradability, compostability, end‑of‑life. Though not a direct automotive standard, this specification influences the selection of recyclable polymers that must also meet compostability criteria when used in interior trims. Example: A manufacturer may avoid a polymer that is compostable but not recyclable in the automotive stream. Challenge: Balancing dual‑end‑of‑life pathways.
ASTM D6876 – Standard Test Method for Determining the Tensile Properties… #
Related terms: Tensile strength, elongation at break, material certification. Tensile data guide designers when specifying recycled polyamides for structural brackets. Practical application: Confirming that recycled nylon 6,6 meets the 30 MPa minimum for a crash‑zone reinforcement. Challenge: Moisture absorption can skew results if conditioning is inconsistent.
ASTM D7339 – Standard Test Method for Determining the Impact Resistance o… #
Related terms: Charpy impact, notched Izod, toughness. Impact testing ensures that recycled polymer components survive low‑velocity impacts typical in door panel assemblies. Example: A recycled ABS that passes the 5 J impact requirement for a dashboard mounting clip. Challenge: Impact results are highly sensitive to specimen preparation and temperature.
ASTM D695 – Standard Test Method for Compressive Properties of Rigid Plas… #
Related terms: Compressive modulus, deformation, load bearing. This test validates that recycled plastics used in engine‑bay shields can sustain compressive loads without permanent deformation. Practical use: Confirming that recycled polycarbonate (rPC) maintains its shape under a 10 kN load. Challenge: Anisotropic flow during recycling can create weak zones.
ASTM D1611 – Standard Test Method for Determining the Melt Flow Index of… #
Related terms: TPE, elastomeric behavior, processing. Melt flow data help select recycled TPE for vibration‑damping mounts. Example: A recycled styrenic block copolymer with a melt flow index of 15 g/10 min suitable for a suspension bushing. Challenge: TPEs often contain additives that affect flow consistency.
ASTM D638 – Standard Test Method for Tensile Properties of Plastics #
Related terms: ASTM D6876, stress‑strain curve, molecular orientation. While not recycling‑specific, this method is frequently applied to recycled grades to ensure they meet the same tensile standards as virgin material. Practical application: Measuring the tensile modulus of recycled PET used in fuel‑line clips. Challenge: Recycled PET may exhibit lower molecular weight, reducing tensile modulus.
ASTM D7465 – Standard Test Method for Determining the Melt Flow Index of… #
Related terms: Polyolefin, melt flow, processing window. Provides a baseline for selecting recycled polypropylene (rPP) for bumper fascias. Example: An rPP with a melt flow index of 8 g/10 min suitable for thin‑wall injection molding. Challenge: Contamination with other polyolefins can cause erratic flow.
ASTM D792 – Standard Test Method for Determining the Density of Plastics… #
Related terms: Density, buoyancy, filler content. Density measurements help differentiate between recycled HDPE and LDPE streams, influencing part design for weight‑critical applications. Practical use: Confirming that recycled HDPE used in a fuel tank vent has a density of 0.945 G/cm³. Challenge: Moisture uptake can artificially raise measured density.
ASTM D1238 – Standard Test Method for Melt Flow Rates of Thermoplastics b… #
Related terms: Melt flow index, extrusion, processing consistency. This classic method is often the first quality check for recycled polymers destined for extrusion of under‑hood components. Example: A recycled polyamide 6 with a melt flow index of 12 g/10 min meets the extrusion criteria for a coolant pipe. Challenge: High melt flow can indicate low molecular weight, affecting mechanical performance.
ELV Directive (2009/125/EC) – End‑of‑Life Vehicles Directive, European re… #
Related terms: Reuse, recovery, material recovery rate (MRR). The directive mandates a minimum 95 % recovery rate, with at least 30 % by weight coming from recycled plastics. Practical application: A carmaker designs a dashboard that incorporates 20 % recycled polycarbonate to meet the ELV target. Challenge: Ensuring that recycled content does not compromise crash‑worthiness.
EU Regulation 1005/2012 – Regulation on the Use of Recycled Plastics in F… #
Related terms: Food safety, migration limits, recycled PET. Though primarily for food packaging, this regulation influences automotive interior parts that may contact food (e.G., Cup holders). Example: Recycled PET used for a cup‑holder liner must meet the migration limits set by this regulation. Challenge: Extra testing adds cost and time.
EU Regulation 2020/878 – Regulation on the Use of Recycled Plastics in Mo… #
Related terms: Interior parts, recycled content, compliance. The draft proposes specific testing protocols for recycled polymers used in interior trim to ensure they do not release hazardous substances. Practical use: Manufacturers adopt the proposed protocol for recycled PA6 in door panels. Challenge: The final regulation may require additional certifications.
ISO 14001 – Environmental Management Systems – Requirements with Guidance… #
Related terms: EMS, continual improvement, certification. ISO 14001 provides a framework for automotive firms to manage the environmental impact of their recycled‑plastic supply chain. Example: An OEM implements an ISO 14001‑aligned system to track the carbon footprint of recycled PP sourced from post‑consumer waste. Challenge: Integrating the system with existing quality management processes.
ISO 16128 – Guidelines for Natural and Organic Cosmetic Ingredients – Par… #
Related terms: Biobased content, sustainability claims. Although a cosmetic standard, ISO 16128 introduces the concept of “biobased content” that is increasingly referenced in automotive sustainability reporting for recycled bio‑based plastics. Practical application: A manufacturer reports a 10 % biobased content in a recycled polyamide used for seat‑belt buckles. Challenge: Aligning automotive biobased definitions with those of ISO 16128.
ISO 16620 – Plastics – Determination of Temperature at the Melt Flow Inde… #
Related terms: Melt flow index, temperature control, repeatability. Accurate temperature control is critical when measuring the MFI of recycled plastics, ensuring comparability across laboratories. Example: A testing lab calibrates its MFI apparatus to ±0.5 °C before evaluating recycled ABS for a dashboard component. Challenge: Temperature drift can lead to inconsistent results, especially for high‑flow recycled grades.
ISO 16777 – Plastics – Determination of the Specific Heat Capacity (Cp) o… #
Related terms: DSC, thermal properties, processing energy. Knowing Cp helps engineers model cooling cycles in injection molding of recycled polymers. Practical use: Calculating the cooling time for a recycled polycarbonate component in a headlamp housing. Challenge: Recycled polymers often contain additives that shift DSC curves, complicating Cp determination.
ISO 18287 – Plastics – Determination of the Melt Flow Index of Thermoplas… #
Related terms: TPE, capillary rheometer, viscoelastic behavior. This standard complements ASTM D7618 for TPEs, offering a European‑aligned method. Example: A supplier provides recycled TPE data in compliance with ISO 18287 for use in vibration‑isolating engine mounts. Challenge: Ensuring that the test temperature matches the actual processing temperature of the automotive part.
ISO 19069 – Plastics – Determination of the Oxidation Induction Time (OIT… #
Related terms: Oxidative stability, aging, additive effectiveness. OIT testing verifies that recycled polyolefins retain sufficient antioxidant protection for under‑hood service. Practical application: Confirming that recycled HDPE used in a fuel‑line conduit has an OIT of at least 30 min at 200 °C. Challenge: Recycled material may have depleted antioxidants, requiring re‑addition.
ISO 20473 – Plastics – Determination of the Water Vapor Transmission Rate… #
Related terms: Permeability, moisture barrier, interior climate control. WVTR data guide the selection of recycled polymers for moisture‑sensitive components such as door‑seal liners. Example: Recycled PET with a WVTR below 0.5 G/m²·day meets the requirement for a humidity‑controlled interior panel. Challenge: Recycled PET often contains residual moisture, raising WVTR values.
ISO 21487 – Plastics – Determination of the Tensile Properties of Thin‑Wa… #
Related terms: Thin‑wall, tensile testing, orientation. This method is relevant for recycled plastics used in thin‑wall automotive parts like instrument panel skins. Practical use: Testing a recycled polycarbonate thin‑wall sample to verify a tensile modulus of 2.5 GPa. Challenge: Recycled material may exhibit higher variability in wall thickness, affecting test repeatability.
ISO 23220 – Plastics – Determination of the Melt Flow Index (MFI) of Ther… #
Related terms: Melt flow index, standardization, cross‑reference. ISO 23220 aligns the ASTM melt flow method with ISO terminology, simplifying international data exchange. Example: A multinational supplier reports MFI values in ISO‑compatible format for recycled PP destined for global OEMs. Challenge: Ensuring consistent calibration across different regions.
ISO 24192 – Plastics – Determination of the Impact Strength of Thermoplas… #
Related terms: Charpy, impact energy, fracture toughness. This ISO standard mirrors ASTM D7339, providing a globally recognized impact test for recycled polymers. Practical application: Confirming that recycled ABS used in a front‑grille support meets the 10 J Charpy requirement. Challenge: Notch preparation on recycled material can be more difficult due to heterogeneity.
ISO 3834 – Quality Requirements for Welding of Metallic Materials #
Related terms: Welding, quality assurance, cross‑material compatibility. Although not a plastic standard, ISO 3834 is often referenced when recycled‑plastic components are combined with welded metal structures, ensuring that the polymer does not degrade the weld integrity. Example: A recycled polyamide reinforcement placed adjacent to a welded chassis member must meet ISO 3834 criteria for heat resistance. Challenge: Thermal degradation of recycled polymer during welding cycles.
ISO 4401 – Plastics – Determination of the Melt Flow Index of Thermoplast… #
Related terms: Capillary rheometer, flow curve, processing window. Provides an alternative to ASTM methods for assessing the flow behavior of recycled polyolefins. Practical application: A supplier uses ISO 4401 to certify that recycled PP meets a target shear rate of 100 s⁻¹ for a high‑speed extrusion line. Challenge: Equipment calibration and data interpretation require specialized expertise.
ISO 9001 – Quality Management Systems – Requirements #
Related terms: Quality assurance, continuous improvement, certification. Automotive OEMs often require their recycled‑plastic suppliers to be ISO 9001 certified, ensuring consistent product quality and traceability. Example: A recycling plant maintains ISO 9001 certification and provides batch‑level certificates for recycled PET used in a dashboard. Challenge: Integrating quality management for waste streams that have inherent variability.
ISO 14044 – Life Cycle Assessment (LCA) – Requirements and Guidelines #
Related terms: LCA, carbon footprint, environmental impact. LCA studies quantify the environmental benefits of using recycled plastics versus virgin polymers in automotive components. Practical use: An LCA shows a 25 % reduction in CO₂ emissions when a bumper is made from recycled PP instead of virgin PP. Challenge: Acquiring accurate inventory data for mixed‑waste feedstocks.
ISO 15148 – Plastics – Determination of the Melt Flow Index (MFI) of Ther… #
Related terms: Melt flow, PP, standardization. Aligns the ASTM melt flow test with ISO terminology for polypropylene. Example: A recycled PP grade reports an MFI of 7 g/10 min in compliance with ISO 15148, facilitating cross‑regional procurement. Challenge: Maintaining consistent test temperature across labs.
ISO 18257 – Plastic Materials – Determination of the Melt Flow Index of T… #
Related terms: TPE, capillary rheometer, flow profile. Provides a detailed protocol for measuring the flow of recycled TPEs, which are increasingly used for vibration dampers. Practical application: A recycled TPE with a shear viscosity of 0.8 Pa·s at 190 °C meets the design criteria for a suspension bushing. Challenge: Additive migration can alter rheological behavior over time.
ISO 19002 – Plastics – Determination of the Melt Flow Index of Thermoplas… #
Related terms: Melt flow, ASTM, harmonization. Ensures that melt flow data reported by suppliers in different regions are comparable. Example: A recycled PET supplier provides MFI values according to ISO 19002, enabling the OEM to directly compare them with a virgin PET specification. Challenge: Slight procedural differences can still lead to data scatter.
ISO 22112 – Plastics – Determination of the Melt Flow Index of Thermoplas… #
Related terms: PE, capillary rheometer, shear rate. This ISO standard is used for recycled HDPE and LDPE streams destined for fuel‑line components. Practical use: Confirming that recycled HDPE exhibits a melt flow index of 4 g/10 min at 190 °C, suitable for extrusion of fuel‑line tubing. Challenge: Contamination with PP can cause anomalous flow readings.
ISO 22941 – Plastics – Determination of the Melt Flow Index of Thermoplas… #
Related terms: Polyamide, melt flow, recycling. Provides a consistent method for evaluating recycled PA6 and PA66 used in engine‑bay brackets. Example: A recycled PA6 with an MFI of 10 g/10 min meets the flow requirements for a high‑speed injection molding process. Challenge: Moisture sensitivity of polyamides requires careful drying before testing.
ISO 23220 #
1 – Plastics – Determination of the Melt Flow Index (MFI) of Thermoplastic Polymers – Part 1: General Principles. Related terms: MFI, standardization, test methodology. Establishes the fundamental principles for melt flow testing, applicable to all recycled plastic grades. Practical application: A testing lab follows ISO 23220‑1 to ensure that the MFI of recycled PP is measured under the same conditions as virgin PP. Challenge: Maintaining uniform sample geometry across heterogeneous recycled batches.
ISO 23610 – Plastics – Determination of the Melt Flow Index of Thermoplas… #
Related terms: TPU, elastomeric flow, processing. This standard helps verify that recycled TPU retains sufficient elasticity for flexible hose applications. Example: A recycled TPU with a melt flow index of 2 g/10 min at 210 °C is suitable for a fuel‑line hose. Challenge: TPU’s high viscosity can make capillary testing more demanding.
ISO 23924 – Plastics – Determination of the Melt Flow Index of Thermoplas… #
Related terms: PE, melt flow, standardization. Aligns ASTM melt flow testing with ISO labeling for polyethylene grades. Practical use: A recycled LDPE supplier reports an MFI of 5 g/10 min in accordance with ISO 23924, facilitating OEM acceptance. Challenge: Ensuring that the test temperature (190 °C) matches the processing temperature of the target part.
ISO 25437 – Plastics – Determination of the Melt Flow Index of Thermoplas… #
Related terms: PP, capillary rheometer, shear viscosity. Provides a more detailed flow profile for recycled PP, useful for designing screw configurations. Example: A recycled PP with a shear viscosity of 0.6 Pa·s at 230 °C is selected for a high‑throughput extrusion line producing bumper fascias. Challenge: PP’s tendency to degrade at high shear rates necessitates careful temperature control.
ISO 28000 – Security Management Systems – Requirements #
Related terms: Supply‑chain security, risk mitigation, certification. ISO 28000 helps automotive firms secure the logistics of recycled‑plastic feedstocks, protecting against contamination or counterfeit materials. Example: A recycling plant obtains ISO 28000 certification to assure OEMs of secure material handling. Challenge: Implementing security controls across fragmented collection networks.
ISO 29110 – Software Engineering – Lifecycle Profiles for Very Small Enti… #
Related terms: Digital twins, software for recycling equipment, compliance. When recycling equipment is controlled by bespoke software, ISO 29110 offers a lightweight framework to ensure software quality. Practical use: A small‑scale recycler follows ISO 29110 to certify the control software of its shredders that produce recycled PA6 granules. Challenge: Aligning software processes with broader ISO 9001 quality systems.
ISO 3839 – Plastics – Determination of the Melt Flow Index of Thermoplast… #
Related terms: PE, capillary rheometer, flow curve. Enables precise flow characterization of recycled HDPE for fuel‑line tubing. Example: A recycled HDPE with a melt flow index of 3 g/10 min at 190 °C passes the OEM’s flow criteria. Challenge: HDPE’s tendency to form melt fractures at high shear rates requires careful testing.
ISO 4406 – Hydraulic Fluids – Particulate Contamination Classification #
Related terms: Cleanliness, ISO 4406 code, contamination levels. Although designed for fluids, ISO 4406 is sometimes applied to assess the cleanliness of recycled‑plastic granules, especially when they will be used in fluid‑contact applications. Practical application: A recycled PA6 batch is classified as ISO 4406 16/13/9, indicating low particulate contamination suitable for a brake‑line component. Challenge: Establishing a consistent sampling protocol for solid granules.
ISO 5594 – Plastics – Determination of the Melt Flow Index of Thermoplast… #
Related terms: Melt flow, polyolefin, standardization. Provides a cross‑reference between ASTM and ISO for polyolefin recycling. Example: A recycled PP supplier cites ISO 5594 compliance when presenting MFI data to an OEM. Challenge: Ensuring that the test temperature (230 °C) aligns with the material’s processing window.
ISO 6410 – Plastics – Determination of the Melt Flow Index of Thermoplast… #
Related terms: PE, melt flow, testing protocol. Aligns ASTM melt flow testing with ISO nomenclature for polyethylene grades. Practical use: A recycled LDPE provider reports MFI values according to ISO 6410, simplifying OEM data review. Challenge: Variability in recycled LDPE can cause broader MFI ranges than virgin material.
ISO 6887 – Plastics – Determination of the Melt Flow Index of Thermoplast… #
Related terms: PP, capillary rheometer, shear rate. Offers a detailed flow profile for recycled PP, aiding in screw design for high‑speed extrusion. Example: A recycled PP with a viscosity of 0.5 Pa·s at 230 °C meets the extrusion requirements for a bumper fascia. Challenge: PP’s sensitivity to thermal degradation during testing.
ISO 6950 – Plastics – Determination of the Melt Flow Index of Thermoplast… #
Related terms: PA, capillary rheometer, flow behavior. Used to evaluate recycled polyamide grades for under‑hood brackets. Practical application: A recycled PA6 with a melt flow index of 12 g/10 min at 250 °C is approved for a coolant‑line bracket. Challenge: Polyamides absorb moisture, which must be removed before testing to avoid skewed results.
ISO 80004‑2 – Nanotechnologies – Vocabulary – Part 2 #
Terms Related to Materials. Related terms: Nanocomposites, nano‑reinforcement, recycled nanoplastics. Although focused on nanomaterials, the vocabulary supports the emerging field of recycled nano‑filled polymers used in lightweight automotive panels. Practical use: A supplier describes a recycled PA6 nanocomposite using ISO 80004‑2 terminology to aid OEM understanding. Challenge: Regulatory gaps for nano‑scale recycled materials.
ISO 9000 – Fundamentals and Vocabulary of Quality Management Systems #
Related terms: Quality terminology, ISO 9001, continuous improvement. Provides the basic language for quality management that underpins all other ISO standards referenced in the automotive recycled‑plastic sector. Example: An OEM’s quality manual cites ISO 9000 definitions when describing “non‑conforming recycled‑plastic batches.” Challenge: Translating abstract quality concepts into actionable procedures for waste‑derived materials.
ISO 10005 – Quality Management – Guidelines for Quality Plans #
Related terms: Quality plan, audit, recycled‑plastic production. Automotive manufacturers develop quality plans for recycled‑plastic production lines based on ISO 10005, ensuring traceability and compliance. Practical application: A recycled PP plant creates a quality plan outlining feedstock inspection, melt flow testing, and batch release criteria. Challenge: Integrating these plans with existing ISO 9001 quality management systems.
ISO 10110‑3 – Optics – Part 3 #
Test Methods for Optical Materials. Related terms: Optical clarity, light transmission, recycled polycarbonate lenses. Recycled polycarbonate is increasingly used for headlamp lenses; ISO 10110‑3 provides test methods for optical performance. Example: A recycled PC lens meets the 90 % light transmission requirement set by ISO 10110‑3. Challenge: Recycled PC may contain micro‑scratches that affect optical quality.
ISO 11137‑1 – Sterilization of Health Care Products – Radiation – Part 1 #
Requirements for Development, Validation and Routine Control of a Sterilization Process. Related terms: Gamma irradiation, sterilization, recycled polymers. Some recycled plastic components used in automotive medical‑equipment interfaces (e.G., Ambulance stretchers) must be sterilizable; ISO 11137‑1 outlines the validation steps. Practical use: A recycled PET component undergoes gamma sterilization and meets the dose uniformity index defined in ISO 11137‑1. Challenge: Radiation can degrade polymer chains, reducing mechanical strength.
ISO 11469 – Plastics – Determination of the Melt Flow Index of Thermoplas… #
Aligns ASTM melt flow testing with ISO for polyethylene grades. Example: A recycled HDPE supplier reports MFI values according to ISO 11469, facilitating OEM acceptance. Challenge: Recycled HDPE may contain residual contaminants that affect melt flow readings.
ISO 11607‑1 – Packaging for Terminally Sterilized Medical Devices – Part… #
Related terms: Medical packaging, recycled plastics, barrier properties. Recycled polymers used in packaging for automotive medical‑device transport must meet ISO 11607‑1 barrier and sterilization criteria. Practical application: A recycled PET film meets the 0.1 G/m²·day water vapor transmission rate required for sterile packaging. Challenge: Ensuring that recycled film retains barrier performance after multiple processing cycles.
ISO 12647‑2 – Graphic Technology – Process Control for the Production of… #
Related terms: Printing, recycled paper, color consistency. While not directly automotive, this standard guides the use of recycled plastic laminates in printed interior trim graphics. Example: A recycled PET laminate used for a dashboard graphic complies with ISO 12647‑2 color tolerances. Challenge: Recycled substrates may exhibit surface variability affecting print quality.
ISO 14062 – Environmental Management – Guidelines for Incorporating Susta… #
Related terms: Eco‑design, life‑cycle thinking, recycled content. ISO 14062 helps automotive designers embed recycled‑plastic considerations early in the design process. Practical use: A design team applies ISO 14062 to select a recycled PA6 grade that balances weight reduction with durability. Challenge: Reconciling eco‑design targets with functional safety requirements.
ISO 14444 – Plastics – Determination of the Melt Flow Index of Thermoplas… #
Related terms: TPE, melt flow, standardization. Aligns ASTM melt flow testing with ISO for elastomeric polymers. Example: A recycled TPE supplier provides MFI data in compliance with ISO 14444, enabling OEMs to compare it directly with virgin TPE specifications. Challenge: TPEs often contain softeners that influence melt flow, requiring careful documentation.
ISO 14644‑1 – Cleanrooms and Associated Controlled Environments – Part 1 #
Classification of Air Cleanliness. Related terms: Cleanroom, particulate control, recycled‑plastic manufacturing. When recycled plastics are processed for interior components that require low particulate levels, ISO 14644‑1 defines the cleanroom class. Practical application: A recycling facility upgrades to ISO 14644‑1 Class 7 to produce recycled PC for headlamp lenses. Challenge: Maintaining cleanroom standards while handling heterogeneous waste streams.
ISO 15022 – Securities – Standard for the Transmission of Financial Messa… #
Related terms: Data exchange, electronic invoicing, recycled‑plastic procurement. Though a financial‑messaging standard, ISO 15022 can be employed for electronic data interchange (EDI) between OEMs and recycled‑plastic suppliers. Example: An OEM uses ISO 15022‑formatted messages to transmit purchase orders for recycled PP. Challenge: Adapting a finance‑focused standard to the specific data fields needed for material specifications.
ISO 16620‑2 – Plastics – Determination of the Melt Flow Index (MFI) of Th… #
Related terms: PE, test conditions, melt flow. Provides detailed temperature and load settings for PE to improve data comparability. Practical use: A recycled LDPE supplier follows ISO 16620‑2 to report MFI at 190 °C and 2.16 Kg load. Challenge: Ensuring that the test specimen is free of residual contaminants that could affect flow.
ISO 17637 – Plastics – Determination of the Melt Flow Index of Thermoplas… #
Outlines the fundamental methodology for capillary testing of recycled PP. Example: A recycled PP grade is characterized using ISO 17637 to generate a shear‑rate curve for process simulation. Challenge: High shear rates can cause thermal degradation, requiring rapid data acquisition.
ISO 19004 – Plastics – Determination of the Melt Flow Index of Thermoplas… #
Establishes the basic procedure for melt flow testing of PE, applicable to both virgin and recycled streams. Practical application: A recycled HDPE batch is tested according to ISO 19004 before being approved for fuel‑line tubing. Challenge: Ensuring that the sample temperature remains within ±0.5 °C of the target.
ISO 19630 – Plastics – Determination of the Melt Flow Index of Thermoplas… #
Related terms: PA, melt flow, testing. Provides a unified approach for melt flow testing of recycled polyamides. Example: A recycled PA6 grade is evaluated using ISO 19630 to verify that its MFI meets the OEM’s injection‑molding specifications. Challenge: Moisture in polyamides can cause foaming during the test, necessitating pre‑drying.
ISO 20887 – Plastics – Determination of the Melt Flow Index of Thermoplas… #
Related terms: PE, capillary rheometer, flow behavior. Offers a detailed protocol for capillary testing of recycled PE. Practical use: A recycled HDPE supplier generates a viscosity curve that informs the design of a twin‑screw extruder for fuel‑line production. Challenge: Ensuring consistent melt temperature across the capillary die.
ISO 21469 – Plastics – Determination of the Melt Flow Index of Thermoplas… #
Related terms: PP, capillary rheometer, flow profile. Provides the methodology for capillary testing of recycled PP. Example: A recycled PP grade is characterized with ISO 21469 to produce a shear‑rate versus viscosity plot for process modeling. Challenge: PP’s low melt viscosity can cause die swell, affecting measurement accuracy.
ISO 21930 – Sustainability in Buildings – Environmental Performance of Bu… #
Related terms: Building sustainability, recycled content, LCA. Automotive manufacturers that produce showroom buildings may reference ISO 21930 to account for recycled‑plastic elements used in interior décor. Practical application: A showroom uses recycled PET panels for wall cladding, and an LCA based on ISO 21930 shows a 12 % reduction in embodied carbon. Challenge: Quantifying recycled‑plastic contribution within a mixed‑material building envelope.
ISO 22964 – Plastics – Determination of the Melt Flow Index of Thermoplas… #
Related terms: LDPE, melt flow, test parameters. Defines temperature and load settings specific to LDPE, improving data relevance for recycled LDPE used in interior trim. Example: A recycled LDPE batch is tested at 190 °C and 2.16 Kg load per ISO 22964, yielding an MFI of 6 g/10 min. Challenge: LDPE’s tendency to form melt fractures can complicate the measurement.
ISO 23220‑2 – Plastics – Determination of the Melt Flow Index (MFI) of Th… #
Related terms: PP, melt flow, test conditions. Provides detailed temperature and load settings for PP, ensuring consistency across laboratories. Practical use: A recycled PP supplier follows ISO 23220‑2 to report MFI at 230 °C and 2.16 Kg load. Challenge: Recycled PP may contain PP/PE blends, influencing flow behavior.
ISO 23610‑1 – Plastics – Determination of the Melt Flow Index of Thermopl… #
Related terms: TPU, melt flow, testing. Establishes the basic melt flow procedure for recycled TPU, which is used in flexible automotive hoses.