Start with the exact legal scope and the exact component scope
Do not write a PO line that only says “REACH compliant blanket”. For azo control in EU trade, the operational restriction is REACH Annex XVII, Entry 43. The restriction applies to azo colourants in textile and leather articles, or in dyed parts thereof, which may release one or more of the listed aromatic amines under the prescribed conditions. That wording matters because enforcement is tied to the tested dyed article or dyed part, not to a vague product-level declaration.
The legal threshold is typically managed as 30 mg/kg for each listed aromatic amine, expressed in the regulation as 0.003% by weight, in the article or dyed parts thereof. Buyers should not rewrite this as “30 ppm total azo” or “30 ppm summed across all amines” unless a customer house standard is stricter and separately documented. The analytical conclusion should be based on the listed amines named in Entry 43, not on a generic “azo content” figure.
Operationally, Entry 43 is built around the list of aromatic amines referenced in the restriction. Your file should therefore show that the lab assessed the listed aromatic amines specified by Entry 43, not an undefined screen. In report review, require results to be shown by amine name, or a clear statement that none of the listed amines was detected above the reporting limit under the applied method.
Applicability is to the tested dyed textile component as prepared by the laboratory. A pass on black body yarn does not automatically cover ecru fringe, red overlock thread or a separately sourced woven label. A buyer approval note should therefore say “component-specific compliant based on submitted sample(s)”, not simply “style compliant” unless every dyed textile component in scope was actually covered.
Keep dyed textile components separate from non-textile materials. Body yarns, fringes, textile bindings and woven textile labels can fall into the textile azo workflow. Transfer films, plastisol prints, PU patches, silicone badges, PVC trims and coatings may require other restricted-substance review instead of being bundled into the textile azo report. Keep them on the BOM chemical checklist with a clear handoff rule. For broader shipment control, pair the chemistry file with a physical inspection workflow such as blanket quality control inspection.
What Entry 43 checks and how to describe it without overclaiming
Entry 43 does not ban every azo dye and it does not certify a product as globally “azo free”. It restricts certain azo colourants capable of reductive cleavage to release one or more of the listed aromatic amines under the prescribed test conditions. The compliance question is therefore narrow and technical: does the submitted dyed textile component release any listed amine above the threshold when tested by the applicable method?
That is why the phrase “azo free” is commercially risky. It sounds absolute, but the lab conclusion is conditional on the submitted component, laboratory preparation and method scope. Safer contract language is: “All dyed textile components supplied under this PO shall comply with REACH Annex XVII Entry 43 for listed aromatic amines, supported by a current ISO/IEC 17025 accredited test report using the applicable EN ISO 14362 method part for the submitted component.”
Use legal compliance and commercial house rules as separate layers. Legal compliance is the 30 mg/kg threshold against the listed amines for the tested dyed textile component. House rules are additional sourcing heuristics such as separate testing of dark colours, contrast thread, fringe or high-risk trims. Those heuristics are often sensible, but they are not themselves the legal rule.
For buyer communication, avoid phrases like “product passed azo” without qualifiers. Better wording is “the submitted black acrylic body-yarn component from lot X was tested to the stated EN ISO 14362 part by an ISO/IEC 17025 accredited lab and no listed aromatic amine was reported above the method reporting limit / legal threshold”. That wording is longer, but it is far less likely to cause a dispute later.
Use EN ISO 14362 carefully, not as a one-line default
Buyers often ask for EN ISO 14362 as though it were one single universal test. It is a method series, and the correct part depends on the submitted material, dye system risk and laboratory assessment. Your lab should state the exact part used and why it was selected for the tested component.
In buyer language, EN ISO 14362-1 is commonly used for detecting the use of certain azo colourants in textiles where the listed amines can be released and determined from the prepared textile specimen under that procedure. EN ISO 14362-2 is not a blanket “polyester or artificial leather test”; it is selected in specific cases where the laboratory determines that an alternative extraction approach is needed for certain fibre or dye-system situations. EN ISO 14362-3 is used where determination of certain amines, including 4-aminoazobenzene, requires the dedicated procedure under that part. Let the accredited lab define the applicable route based on the actual submitted component.
This matters for acrylic-rich throws because fibre content alone does not settle the method path. Acrylic commonly uses cationic or basic dye systems, but throws may include mixed-fibre sewing thread, polyester labels, acrylic-poly blends, brushed trims or fringe from a different source. If a throw contains multiple dyed textile components with different fibre chemistry, the lab may reasonably apply different preparation logic to different components.
Ask the lab to record the submitted specimen description at component level, for example: “black yarn-dyed acrylic body panel”, “burgundy fringe yarn” or “navy woven polyester label”. That component-specific wording is more useful than a broad line such as “blanket sample”. It is the only way a buyer can later confirm whether the test actually covered the risky dyed parts.
If there is any mixed-fibre trim, acrylic-rich blend or separately sourced dyed accessory, do not assume one method result covers all. Require the lab to confirm whether each dyed textile component was tested separately, tested as a justified composite, or excluded from the textile azo scope pending other chemical review.
Why yarn-dyed acrylic throws need upstream control at yarn level
For yarn-dyed acrylic throws, the main compliance risk usually sits upstream at the spinner, yarn dyer or dyed-yarn trader, not only at the sewing line. If the throw factory buys pre-dyed yarn, the final cut-and-sew plant may have limited visibility unless the buyer forces lot traceability into the approval file.
Ask the supplier to classify the colour source clearly: in-house yarn dyeing, approved contract dyehouse or open-market pre-dyed yarn. Open-market yarn without stable lot records is usually the highest chemical-control risk. If the supplier claims continuity from a previous order, require evidence rather than relying on verbal confirmation.
Minimum supplier records should include yarn lot code, yarn supplier name, shade code, dyestuff declaration or restricted-substance declaration from the yarn source, shade recipe control evidence such as approved recipe version or dyeing card, substitution approval log for any emergency dye or yarn replacement, and lot-to-finished-goods traceability linking yarn lots to loom or knitting batches and packed carton lots.
Multi-colour plaid or jacquard throws need stronger discipline than solid shades because each distinct dyed yarn may be a separate risk unit. A black-red-beige plaid with black fringe can involve at least four dyed components. If the fringe is separately sourced from the body yarn, it should be treated as its own risk component even when the colour appears visually identical.
For broader programme planning, chemical control on dyed textile components sits alongside weight, construction and trim control, but it should not be diluted by generic QC filler. If you need programme-level context on material choices, see fleece weight throw blanket program and recycled-file management such as sustainable recycled blanket sourcing.
Component segregation rules for yarn-dyed throws
Build the testing scope around distinct dyed textile components, not around the finished throw as one unit. For yarn-dyed acrylic throws, the practical components are usually body yarn by colour, fringe yarn, binding tape, overlock thread, decorative sewing thread and any dyed woven textile label. The buyer should define which of these must be sampled separately and which may be grouped with justification.
For multi-colour yarn-dyed throws, each distinct dyed yarn colour should normally be treated as a separate sampling candidate on a first order, a new yarn source or a shade change. If two colours are supplied from the same approved yarn source, same shade recipe family, same production lot window and same supplier declaration set, some buyers group lower-risk light or pale shades for screening. Dark shades and red/orange/black/navy families are usually kept separate because they are common risk heuristics, not because the law names them specially.
If the same colour appears across several throw styles from the same yarn lot, grouping can be justified for that specific lot if the lab specimen and the approval note clearly state the lot continuity basis. Grouping should not cross different yarn lots simply because the shade name is the same. “Navy” from lot A and “Navy” from lot B are not automatically one chemical lot.
Separately sourced fringe should be treated as a separate dyed textile component unless the supplier can prove it is made from the same dyed yarn lot as the body and there is no separate dyeing or finishing step. Fringe is often omitted by mistake because it is seen as a trim, but if it is a dyed textile part, it belongs in the component review.
Mixed-fibre trims need extra care. An acrylic-rich body with polyester overlock thread, nylon binding or a dyed polyester label may require separate component testing and may influence method selection by the lab. Do not collapse mixed-fibre trims into the acrylic body assumption.
Test matrix buyers can actually use
Use a component-level matrix rather than a generic instruction such as “test azo on blanket”. The table below is suitable for a buyer SOP and can be tightened or relaxed depending on supplier history and customer requirements.
| Component | Sampling point | Color-risk trigger | Method part | Pass/fail threshold | Retest rule |
|---|---|---|---|---|---|
| Body yarn, each distinct dark shade | Bulk yarn cone or cut panel from sealed in-line lot | Black, navy, deep red, burgundy, dark brown, supplier change, new dye recipe | Applicable EN ISO 14362 part selected by accredited lab | No listed aromatic amine reported above 30 mg/kg for the tested component | Retest every new yarn lot or any recipe/substitution change |
| Body yarn, light or medium shade | Bulk yarn cone or cut panel from current lot | First order, new supplier, failed history, grouped-color screening only by buyer approval | Applicable EN ISO 14362 part selected by accredited lab | Same threshold; grouped screening only if dilution risk accepted in writing | Retest when lot changes or grouping basis changes |
| Separately sourced fringe | Loose fringe bundle from incoming trim lot | Any separate supplier, separate dye lot, dark shade or unknown continuity | Applicable EN ISO 14362 part selected by accredited lab | No listed aromatic amine above 30 mg/kg | Retest each fringe lot unless proven same dyed-yarn lot as body |
| Contrast overlock, binding or decorative thread | Thread cone or finished-goods extraction if cone unavailable | Visible dark/bright contrast, different fibre, different supplier | Applicable EN ISO 14362 part selected by accredited lab | No listed aromatic amine above 30 mg/kg | Retest when supplier, colour or fibre changes |
| Dyed woven textile label | Incoming label roll | Dyed label, dark ground, different supplier or print-to-weave conversion | Applicable EN ISO 14362 part selected by accredited lab | No listed aromatic amine above 30 mg/kg | Retest on new label lot or supplier change |
Composite testing can be used as a cost-control screen, but only under controlled conditions: same approved source, same lot family, no separate fringe source, and buyer acceptance of dilution risk in writing. If any component in a composite screen shows a concern, move immediately to separate component testing before shipment approval.
For repeat orders with a stable supplier and clean traceability, a reduced matrix can be acceptable: usually the darkest current body shade plus any component that changed supplier, lot continuity, fibre composition or dye source. For first orders, new suppliers, new yarn traders or prior failures, test each high-risk dyed component separately.
Sampling rules and lot matching
Sampling should be tied to the actual production lot, not just to a salesman swatch or development handloom. Best practice is to seal specimens from bulk yarn cones, in-line fabric/blanket panels or incoming fringe lots that are traceable to production records and packed carton lots.
A report from development stage can support initial material approval, but it should not be the only basis for shipment release if the bulk lot uses a different yarn lot, a different spinner, a substitute dyestuff or a late shade correction. Buyers should require lot-matched testing or lot-matched continuity evidence.
For multi-colour throws, specify in the sampling instruction whether the sample is taken from each distinct dyed yarn or from a finished panel from which the lab will isolate each colour. The latter can work, but only if the lab confirms successful component separation in the report or in the sample receipt note.
If the same dyed yarn lot is used across multiple SKUs, grouping can be efficient, but the grouping note should identify the exact lot code and all covered SKUs. Do not allow grouping across visually similar colours from different dye lots without formal continuity evidence. Buyers often lose traceability here because finished-goods carton labels do not always preserve the original yarn-lot code. That gap should be closed before bulk approval.
Where supply chains are less mature, it is worth adding a retained-reference rule: keep a sealed control specimen from each tested component for at least the claim window used in your quality agreement. This does not replace testing, but it helps if there is a dispute after delivery.
How to review the lab report before approving shipment
A buyer should review the report as a technical record, not as a decorative attachment. Start with the sample description. It should match the tested component you intended to cover: colour, component type and, where possible, fibre description. “Blanket sample” is weak. “Black acrylic fringe yarn” is much stronger.
Check the lab status. The report should come from an ISO/IEC 17025 accredited laboratory, and the accreditation scope should cover the relevant azo amine testing. If the test was subcontracted, the report should state that clearly and show how responsibility is controlled.
Check the method identification: exact EN ISO 14362 part, any stated laboratory preparation, and any deviation or limitation. If the lab used a composite specimen, the report or supporting note should say so. If the component was not fully separable, ask whether that creates a dilution or interpretation issue.
Check the reporting limit or LOQ. A pass statement is only meaningful if the reporting capability is fit for the legal threshold. If results are reported as “not detected”, confirm the reporting limit by listed amine. A vague “ND” with no stated reporting limit is weak evidence for release decisions.
Check the result by listed amine. The report should either list the amines individually or clearly indicate compliance against the listed amines under the applied method. If any listed amine is reported above 30 mg/kg, hold shipment. If any amine result sits close to the threshold, many buyers order a confirmatory retest on a retained specimen or a fresh lot-matched sample before release.
Check administrative integrity: report number, issue date, authorized signatory, sample receipt date, and whether the tested lot aligns with the production lot. A current report that does not match the shipped lot is not a valid release basis.
For programmes with multiple components, attach a simple coverage note to the report: which dyed textile components are covered, which are excluded, and which require separate non-textile RSL review. That avoids later disputes about what the report did or did not prove.
Shipment-hold criteria as decision rules
Release decisions should be rule-based. Hold shipment immediately if no current azo report exists for the dyed textile components in scope.
Hold shipment if the report is not lot-matched and there is no documented continuity showing the same yarn lot, same dye source and no substitution. A development-stage report alone is not enough for a changed bulk lot.
Hold shipment if the report is expired under your customer or internal validity rule. Many buyers set their own validity window, but that is a house rule, not the legal text. State the window clearly in your SOP if you use one.
Hold shipment if any dyed textile component in scope is omitted, especially separately sourced fringe, contrast binding, dyed label or contrast thread. Partial coverage should be treated as incomplete evidence, not as a pass.
Hold shipment if the report relies on a composite specimen with material dilution concern and the programme requires component-specific evidence. This is especially relevant where a small dark component is mixed with large low-risk material.
Hold shipment if any listed aromatic amine exceeds 30 mg/kg on the tested component, or if the report includes a deviation, qualification or sample mismatch that prevents a defensible compliance conclusion. Release only after root-cause review, corrective action and a clean retest on the corrected lot.
Separate legal compliance from risk heuristics
Legal compliance under Entry 43 is not triggered by colour depth, fringe presence or contrast stitching by themselves. Those are risk heuristics that help buyers decide where to test more carefully. Keep that distinction clean in your SOP and supplier communication.
Examples of common buyer heuristics are: dark shades tested separately, separately sourced fringe treated as its own component, contrast thread reviewed if visibly dyed and supplied from a different source, and new suppliers placed on component-specific testing rather than composites. Those are sensible because they reduce blind spots, but they are commercial control rules, not the legal threshold.
This separation matters during disputes. If a supplier argues that dark-colour retesting is not in the law, they are correct. It is a buyer house rule adopted to manage risk. Put such rules into your quality agreement and PO terms so they are contractually enforceable.
The same principle applies to report validity windows, sampling intensity and hold/release gates. They should be written as buyer controls layered on top of the legal requirement, not confused with the law itself.
Non-textile parts are not automatically in scope, but they are not ignored
A textile azo report is not a universal chemical clearance for the whole throw pack. Transfer films, coatings, prints, silicone badges, PU or PVC patches, zipper pulls, packaging inks and other non-textile materials may require different restricted-substance checks depending on the material and destination market.
The handoff rule should be explicit. If a component is a dyed textile part, review it in the Entry 43 workflow. If it is a non-textile component or coating, send it to the broader RSL review for the applicable material category rather than forcing it into the textile azo report.
This is especially relevant where buyers see phrases such as “printed or coated” in construction notes. Printed or coated does not automatically remove a part from chemical review; it simply means the review path may differ. A transfer print film on a throw edge may not belong in the textile azo report, but it still needs a documented chemical handoff.
For integrated sourcing files, add a BOM column stating “Entry 43 textile azo in scope / other RSL route” for each component. That simple step prevents both over-testing and dangerous omissions. Related context on backing and material-route choices appears in picnic blanket backing PEVA PU TPU.
Buyer SOP: approval gate sequence
A short SOP is more useful than a long narrative. Use a fixed approval sequence for each PO or lot.
Gate 1: BOM mapping. List every dyed textile component and every non-textile component. Mark which items fall into Entry 43 textile azo review and which go to other RSL review.
Gate 2: Supplier record check. Collect yarn lot code, yarn supplier, shade code, dyestuff declaration, recipe control evidence, substitution approval log and lot-to-finished-goods traceability. If any of these is missing on a new or changed lot, escalate testing intensity.
Gate 3: Sampling plan. Decide whether each distinct dyed yarn colour, fringe, label or contrast trim will be tested separately or screened in a justified composite. Record the rationale in writing.
Gate 4: Lab submission. Submit component-specific specimens to an ISO/IEC 17025 accredited lab and ask the lab to select and state the applicable EN ISO 14362 part for each submitted component.
Gate 5: Report review. Verify sample description, method part, reporting limit, result by listed amine, deviations, accreditation scope and authorized signatory. Map the report back to the lot being shipped.
Gate 6: Release or hold. Release only if all in-scope dyed textile components are covered by acceptable evidence and no listed amine exceeds 30 mg/kg. Otherwise hold shipment and trigger corrective action.
PO clause and lab-report acceptance clause
Use contract language that can actually be enforced. A workable PO clause is: “Supplier warrants that all dyed textile components supplied under this purchase order comply with REACH Annex XVII Entry 43 regarding listed aromatic amines released from certain azo colourants. Supplier shall maintain lot-level traceability for dyed yarn and dyed textile components, including yarn lot code, shade code, dye source, substitution log, and linkage to finished-goods lots. Before shipment, supplier shall provide a current ISO/IEC 17025 accredited test report using the applicable EN ISO 14362 method part for the submitted dyed textile component(s), or other buyer-approved equivalent evidence where applicable.”
A workable lab-report acceptance clause is: “Buyer will accept azo test evidence only where the report identifies the submitted dyed textile component(s), states the applied EN ISO 14362 method part, shows reporting capability appropriate to the 30 mg/kg legal threshold, and is traceable to the production lot being shipped. Composite reports may be rejected where component dilution could mask risk or where separately sourced dyed components are not individually covered.”
If you need a shorter commercial version for order confirmations, use “Entry 43 compliant by dyed textile component, not generic product-level claim”. That phrase is plain enough for merchandisers and precise enough for QA.
For lead-time planning, remember that chemical approvals should sit ahead of cargo booking rather than after final packing. Related timing guidance appears in custom blanket lead times shipping.
Frequently asked
Does a single azo test report cover the entire acrylic throw? Only if every dyed textile component in scope is actually covered by the submitted sample set and the report wording supports that conclusion. In practice, buyers should assume compliance is component-specific. Body yarn, separately sourced fringe, contrast binding, dyed labels and contrast thread may need separate coverage.
What are the exact legal elements buyers should reference for Entry 43? Reference REACH Annex XVII Entry 43, which restricts azo colourants in textile and leather articles or in dyed parts thereof that may release one or more of the listed aromatic amines under the prescribed conditions. The operational threshold is 30 mg/kg, expressed as 0.003% by weight, for the listed amines on the tested dyed article or dyed part.
Is EN ISO 14362-2 automatically the right method for polyester trims or artificial leather parts? No. Buyers should not assign 14362-2 by shortcut. Method-part selection is a laboratory decision based on the actual submitted component, fibre/material type, dye system and the method scope. Require the accredited lab to state the exact EN ISO 14362 part used and why it applies.
Can we use the phrase azo free on POs and reports? It is safer not to. Azo free sounds absolute and is easy to overclaim. Better wording is that dyed textile components comply with REACH Annex XVII Entry 43 for listed aromatic amines, supported by a current ISO/IEC 17025 accredited report using the applicable EN ISO 14362 method part.
How should we sample a multi-colour yarn-dyed throw? On first orders, new yarn sources or high-risk colours, sample each distinct dyed yarn colour separately, plus any separately sourced fringe and any dyed contrast trim from a different source. Grouping is more defensible only where the same approved yarn lot, source and continuity evidence are documented and the buyer accepts the dilution risk.
Does a textile azo report also clear prints, coatings and patches? Not automatically. Dyed textile components belong in the Entry 43 workflow. Transfer films, coatings, silicone badges, PU or PVC patches and other non-textile parts may need separate RSL review under the applicable material route. They should stay on the BOM chemical checklist even if excluded from the textile azo report.
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