REACH Testing for Plastic Pellets: SVHC Screening, Restricted Substances, and Compliance Requirement

REACH testing for plastic pellets is a critical compliance step for manufacturers and exporters supplying polymeric materials into the European Union market. This article explains the regulatory framework under Regulation (EC) No 1907/2006, the specific testing items such as SVHC screening and Annex XVII restricted substances, standard analytical methods, sample requirements, and practical answers to frequently asked questions.

Technical Overview

REACH (Registration, Evaluation, Authorisation and Restriction of Chemicals) is the European Union regulation (EC) No 1907/2006 governing the production and use of chemical substances. For the plastics industry, plastic pellets, granules, and powders are the foundational raw materials for injection molding, extrusion, blow molding, and compounding operations. Although polymers themselves benefit from a registration exemption under REACH, the monomers, additives, and residual substances incorporated into plastic pellets can fall under strict regulatory control.

REACH testing of plastic pellets serves two principal purposes. First, it verifies whether any Substances of Very High Concern (SVHC) from the ECHA Candidate List are present at or above the 0.1% weight-by-weight (w/w) reporting threshold, which triggers notification, communication, and SCIP database obligations down the supply chain. Second, it confirms compliance with the restricted substance limits defined in Annex XVII of the regulation, such as phthalate plasticizers, polycyclic aromatic hydrocarbons (PAHs), cadmium, lead, and certain flame retardants.

Because non-compliance discovered at the finished-article stage can result in product recalls, customs detention, or market withdrawal, testing at the pellet stage allows manufacturers to intercept problematic materials before value is added through processing, significantly reducing commercial and legal risk.

SVHC Candidate List Obligations

The ECHA Candidate List currently contains more than 240 substances and is updated approximately twice per year. Substances are added based on hazard classifications such as carcinogenicity, mutagenicity, reproductive toxicity (CMR), persistent bioaccumulative toxicity (PBT), very persistent very bioaccumulative toxicity (vPvB), endocrine disruption, and respiratory sensitization. When an SVHC is present in an article above 0.1% w/w, EU importers and producers must communicate safe use information to customers (Article 33), notify ECHA if the tonnage exceeds one tonne per year per producer or importer (Article 7(2)), and submit information to the SCIP database established under the Waste Framework Directive.

Annex XVII Restriction Obligations

Annex XVII establishes specific concentration limits for dangerous substances in consumer articles and mixtures. Unlike the SVHC threshold, restricted substances carry legally binding limits that must never be exceeded, regardless of tonnage. For plastic materials, the most commonly cited entries include restrictions on cadmium in plastics (Entry 23), the four regulated phthalates DEHP, DBP, BBP, and DIBP (Entries 51 and 52), the eight PAHs in plastic and rubber components with skin or oral contact (Entry 50), lead in consumer articles (Entry 63), and PFOA-related substances (Entry 68).

Testing Samples

Accredited third-party laboratories accept a wide range of polymeric sample forms for REACH testing. The physical form of the sample does not affect analytical validity as long as the material is homogeneous and representative of the production lot.

Virgin Resin Pellets

Unmodified polymer pellets such as PP, PE, PVC, ABS, PS, EPS, PC, PA6, PA66, PET, POM, PMMA, TPU, and TPE constitute the majority of submitted samples. Virgin resins typically present lower risk, but residual monomers, polymerization catalysts, and processing aids can still introduce SVHC or restricted substances.

Masterbatches and Compounds

Color masterbatches, filler masterbatches, and functional compounds contain high concentrations of pigments, dyes, plasticizers, stabilizers, antioxidants, UV absorbers, and flame retardants. These additive-rich materials carry elevated compliance risk, particularly for heavy-metal pigments (lead chromate, cadmium-based colors), phthalate carriers, halogenated flame retardants, and short-chain chlorinated paraffins (SCCPs).

Recycled and Regrind Materials

Post-industrial and post-consumer recycled pellets present the highest analytical uncertainty because feedstock streams may contain legacy additives, mixed polymer contamination, brominated flame retardants from waste electronics, or restricted plasticizers from flexible PVC. Comprehensive SVHC screening is strongly recommended for any recycled content intended for EU-bound articles.

Liquid and Powder Polymer Additives

Plasticizers, stabilizer packages, slip agents, and curing agents supplied alongside pellets are also testable under the same framework. Testing neat additives can isolate the contamination source when a finished pellet lot fails.

Testing Items

REACH test packages for plastic pellets are generally structured in tiers, allowing clients to select the scope that matches their regulatory exposure and customer requirements.

SVHC Candidate List Screening

A full screening covers all substances on the current ECHA Candidate List against the 0.1% w/w threshold. Laboratories apply targeted quantitative methods for well-known SVHC groups and non-targeted screening techniques for broader coverage. Typical substance groups relevant to plastics include:

• Phthalate and adipate plasticizers (DEHP, DBP, DIBP, BBP, DEHA, and others)
• Bisphenol A and related bisphenols
• Short-chain and medium-chain chlorinated paraffins (SCCPs, MCCPs)
• Brominated flame retardants (HBCDD, decaBDE, HBB, and PBDE congeners)
• Organophosphate flame retardants and plasticizers (TCEP, TCIPP, TDCIPP, TPhP)
• Non-halogenated flame retardants including TBBPA and its derivatives
• PAHs and relevant intermediates such as anthracene and coal-tar derivatives
• Heavy metals and organometallics: lead compounds, cadmium compounds, cobalt salts, arsenic compounds
• Organotin compounds (DOT, DBT, TBT, DOTE)
• Nonylphenol, octylphenol, and their ethoxylates
• Per- and polyfluoroalkyl substances (PFAS), including PFOA and HFPO-DA
• Aniline, methoxy anilines, and other aromatic amines from certain azo processes
• Formaldehyde and releaser substances
• UV stabilizers and antioxidants such as MBMTZ, DPTU, and certain hindered phenols on the list

Annex XVII Restricted Substance Testing

Restricted substance testing is quantitative and compared against legally defined limits. Common items for plastic materials include:

• Cadmium and its compounds in plastics: 0.01% (100 mg/kg) by weight
• DEHP, DBP, BBP, and DIBP, individually or in combination: 0.1% w/w in plasticized materials
• Eight restricted PAHs, each limited to 1 mg/kg (0.0001% w/w) in plastic or rubber parts of consumer articles with direct skin or oral contact
• Lead and lead compounds in consumer articles: 0.05% w/w
• PFOA and its salts and related substances: 25 ppb for PFOA and its salts, 1000 ppb for related compounds
• PFOS and its derivatives: 10 ppb in articles
• Dioctyltin (DOT) and dibutyltin (DBT) compounds in specified consumer and PVC applications
• HBCDD in articles: 100 mg/kg under the POPs-aligned restriction
• SCCPs: 1% w/w in articles and mixtures
• Nickel release limits where plastic-metal composite parts are involved

Extended and Application-Specific Packages

Certain end markets impose extended scopes. Toy and childcare article suppliers frequently add EN 71-3 element migration testing alongside REACH. Food-contact and electronics applications may combine REACH with EU 10/2011 migration testing or RoHS Directive (EU) 2015/863 ten-substance screening, since analytical preparation for both regulations overlaps substantially.

Testing Methods

REACH analysis follows internationally recognized standards where available, supplemented by validated in-house methods aligned with ISO/IEC 17025 quality management principles. The workflow consists of sample preparation, screening, and confirmatory quantification.

Sample Preparation

Pellets are homogenized by cryogenic milling at liquid nitrogen temperatures to produce a uniform powder without thermal degradation of additives. Representative subsamples are then extracted under solvent systems appropriate to each analyte class. Standard extraction techniques include ultrasonic extraction (USE), Soxhlet extraction, and accelerated solvent extraction (ASE). For elemental analysis, samples are digested by microwave-assisted acid digestion.

Elemental Analysis Techniques

• EDXRF (energy-dispersive X-ray fluorescence) for rapid non-destructive screening of lead, cadmium, mercury, chromium, bromine, and chlorine as indicator elements
• ICP-OES and ICP-MS for precise quantification of lead, cadmium, arsenic, cobalt, and other metallic SVHC and restricted elements after acid digestion
• UV-Visible spectrophotometry for hexavalent chromium determination
• Cold vapor atomic absorption spectroscopy (CVAAS) for mercury

Organic Analysis Techniques

• GC-MS with both EI and NCI ionization for phthalates, PAHs, SCCPs, MCCPs, brominated flame retardants, organotin compounds (following derivatization), and nonylphenol ethoxylates
• LC-MS/MS and HPLC-UV/FLD for bisphenol A, PFAS compounds, benzotriazole UV stabilizers, and thermally labile SVHC
• Ion chromatography for PFAS and ionic species where applicable
• Headspace GC-MS for volatile residual monomers such as styrene, acrylonitrile, vinyl chloride, and formaldehyde releasers

Reporting Logic and Decision Thresholds

Laboratories report quantitative results with limits of detection (LOD) and limits of quantification (LOQ), typically set at or below one-tenth of the regulatory threshold to provide clear pass or fail judgments. For SVHC screening, results are compared against 1000 mg/kg (0.1% w/w); for Annex XVII items, results are compared against the specific legal limit of each entry. A non-detect result below the LOQ supports a conformity conclusion, while any detection above threshold triggers corrective action such as supplier substitution or reformulation.

Applications

REACH-compliant plastic pellets are a prerequisite across a broad spectrum of end-use sectors that ship finished goods into the EU market:

• Automotive: interior trim, dashboards, door panels, seals, and under-hood components, where OEM specifications reference REACH SVHC and Annex XVII limits directly
• Electrical and electronic equipment: housings, connectors, cable insulation, and wire jackets, tested in combination with RoHS requirements
• Toys and childcare articles: skin-contact and mouthable plastic parts subject to PAH and phthalate restrictions at the strictest limits
• Consumer goods: kitchenware, appliances, stationery, sporting goods, and textile accessories with plastic components
• Packaging: food-contact and non-food packaging materials requiring REACH plus food-contact framework verification
• Medical devices and healthcare products: housings, tubing, and single-use components where SVHC control supports biocompatibility documentation
• Construction products: pipes, profiles, flooring, insulation, and roofing membranes subject to flame retardant and plasticizer scrutiny
• Footwear and apparel: TPU films, EVA midsoles, PVC trims, and synthetic leather substrates

Buyers and brand owners increasingly require pellet-level REACH test reports as a condition of supplier qualification, since material-level documentation transfers cleanly to every article manufactured from the same lot.

FAQ

Is REACH testing legally mandatory for plastic pellets?

REACH does not mandate laboratory testing per se; it mandates compliance. Testing is the accepted means of demonstrating compliance and generating the evidence needed for Article 33 communication, Article 7(2) notification, SCIP submissions, and customer declarations. In practice, EU importers, brands, and retailers require accredited third-party test reports as contractual and documentary proof.

How is SVHC testing different from Annex XVII restriction testing?

SVHC screening checks the ECHA Candidate List against the 0.1% w/w information threshold and primarily triggers communication and notification duties. Annex XVII testing verifies legally binding concentration limits for specific substances in specific applications. A material can contain an SVHC below 0.1% and still be compliant, whereas an Annex XVII limit can never be exceeded.

How much sample is required, and how should it be submitted?

A full SVHC screening typically requires approximately 50 to 100 grams of pellets, while targeted single-item tests require about 20 to 50 grams. Samples should be sealed in clean polyethylene bags or containers, labeled with material designation, lot number, color, and supplier information, and shipped with a completed application form identifying the required test scope.

What is the typical turnaround time?

Standard turnaround for a full SVHC screening is five to seven working days from sample receipt. Targeted Annex XVII items generally complete within three to five working days. Express services of two to three working days are commonly available for urgent commercial situations, subject to method suitability.

How often should testing be repeated?

Reports should be refreshed whenever the Candidate List is updated with substances plausibly relevant to the material formulation, when the formulation, supplier, or additive package changes, and at a minimum annually for ongoing production lots. Recycled material lots warrant testing at a higher frequency due to feedstock variability.

Does REACH apply to recycled plastic pellets?

Yes. Recyclers and downstream users remain responsible for SVHC content in recycled materials. If a recycled pellet contains an SVHC above 0.1% w/w, the same notification, communication, and SCIP obligations apply as for virgin materials, which is why recycled feedstocks benefit from full-list screening before introduction into EU supply chains.

How long is a REACH test report valid?

There is no fixed legal expiration date. However, because the Candidate List is updated twice per year, most buyers accept reports dated within twelve months, or dated before the most recent list update. Reports must reference the Candidate List version in effect at the time of testing to remain technically meaningful.

Can one report cover both REACH and RoHS?

Many laboratories issue a combined report because phthalate, heavy-metal, and flame-retardant analyses overlap between the two frameworks. The scopes remain legally distinct: RoHS covers ten restricted substances in electrical and electronic equipment, while REACH covers the Candidate List and Annex XVII across all article categories. Clients should confirm with their laboratory that both scopes are explicitly listed on the report.