Folded charcoal polyester fleece blankets on a packing table with fire-test sample labels, carton markings and QC paperwork

Confirm the exact legal and test pathway before quoting

Do not buy against the phrase “Source 5 blanket” on its own. Ask for the exact project wording and keep that wording unchanged on the RFQ, lab submission and PO. In UK contract files, buyers may see a mix of references: BS 7175 for upholstered furniture hazard categories and ignition sources; the Furniture and Furnishings (Fire) (Safety) Regulations 1988, as amended, where Schedule references and ignition-source language are sometimes used in procurement shorthand; or a consultant's own loose-furnishing clause that borrows the term “crib 5”. Those are not interchangeable unless the project approver says so in writing.

Decode the terminology clearly. Under BS 7175, the buyer is dealing with hazard categories such as low, medium, high or very high hazard, and with a specified ignition source used to assess the submitted composite or article. In market slang, “Crib 5” usually refers to Ignition Source 5, a wood-crib style ignition source. That slang is widely used, but the PO should still state the exact standard and ignition-source wording, because “hazard category” and “ignition source” are not the same thing.

If a document mentions “Schedule 4”, do not assume that alone defines a blanket requirement. Ask which regulation is being cited, which ignition source is required, whether the article is being treated as upholstered furniture, as a loose furnishing by written project instruction, or as an excluded item accepted on another basis. Buyer action: request the consultant's clause, the jurisdiction, the exact test-method reference, and written confirmation that a finished blanket article is the required submission. Without that, you risk buying an expensive FR construction that still does not match the approval route.

A safe claim format is narrow and article-specific: the offered blanket, in the tested production configuration, was submitted by an accredited laboratory to the exact ignition method required by the project specification and achieved the stated result. Avoid broad claims such as “BS 7175 approved”, “UK fire compliant” or “crib 5 pass” without the method title, ignition source, report number and issued date. For broader file discipline, see textile certifications explained for buyers and blanket quality control inspection.

Where these requests appear, and where they often do not

These requests are common in UK hospitality fit-out, care settings, student accommodation, serviced apartments, behavioural-care environments, lounges and other furnished spaces where the specifier wants the blanket treated as part of the fire-performance package for the room. They are less common in standard promotional throws, travel blankets, retail home throws and many amenity programmes unless the project team has added a specific clause.

That distinction affects cost and risk. If the project does not genuinely require a tested finished blanket, forcing an FR route can raise unit cost, extend lead time by roughly 2 to 5 weeks for development and lab booking, narrow the colour palette and push MOQ upward with little benefit. If the project does require article-level evidence, a fabric-only statement or generic FR fibre declaration is usually not enough for tender review, audit or post-incident document checks.

State the end use precisely on the enquiry: guest-room decorative throw, resident blanket, lounge blanket, public-area loose textile, behavioural-care bedding accessory, or similar. “Hospitality blanket” is too vague for fire-risk review. For programmes where standard fleece is more appropriate, compare with promotional stadium throw sourcing and how to specify 200gsm recycled fleece blankets for airline amenity programmes.

Decision tree: when a finished blanket test is likely required

Use a simple sourcing decision tree. First: if the consultant, operator, insurer or fire engineer explicitly asks for the blanket itself to be tested to a named ignition source, you need a finished article report for the submitted blanket configuration. Second: if the spec only asks for FR composition or refers to an approved FR fabric platform without naming the blanket as a tested article, ask whether a fabric report plus written specifier acceptance is sufficient. Third: if the blanket sits outside the furniture scope and no written fire clause covers it, do not assume that a BS 7175 claim is needed at all; obtain written acceptance of the blanket specification as an excluded or separately approved item.

A fabric report is usually insufficient where the blanket is hemmed, bound, labelled, quilted, backed, folded differently in use, or supplied in a size and mass that materially differ from the tested fabric submission. It is also weak where the project file names Ignition Source 5 or uses the phrase “crib 5 blanket” in a finished-product schedule. In those cases, buyers should expect the approver to ask for a report on the complete article or on the exact submitted configuration.

A project may still accept a blanket without a finished article test if the consultant issues written clarification that the blanket is outside the furniture scope and is being accepted by specification, supplier declaration or another route. Buyer action: keep that clarification in the approval pack, attach it to the PO, and treat any later construction change as a new approval event rather than relying on verbal acceptance.

Why fabric-only reports do not prove a finished blanket claim

This is the most common sourcing failure. A supplier sends a report on fleece yardage, an FR fibre data sheet, or a generic declaration that the polymer is flame retardant. None of those proves that the finished blanket SKU in production configuration meets the required ignition route. The submitted article includes brushing level, pile height, shearing, dyeing, sewing thread, labels, binding or hem treatment, dimensions, packing folds used in submission, and any trims. Those details change how the specimen behaves under ignition exposure.

The mechanism is practical rather than theoretical. Sewing thread and label stock can introduce a different polymer type with a different melt or afterflame behaviour. Bound edges, folded hems and decorative piping increase local mass and edge geometry, which can change ignition and spread near the specimen edge. Higher pile, softer brushing and loftier nap can alter air entrapment and flame spread. Dark shades may use different dye packages or auxiliaries, and topical finishing can change surface behaviour after laundering. That is why the submitted article should match production configuration as closely as possible.

Do not accept these as finished-article proof: fabric tested flat in roll form; a report for 240gsm when you are buying 270gsm; a report for light grey when your order is charcoal or navy; a report for cut-edge overlock when your SKU uses folded hems or woven binding; a report for plain polar fleece when your article is flannel fleece, sherpa-backed, jacquard or double layer; or a fibre statement without article testing. Those documents can support technical background only.

Shade coverage needs tighter wording. Existing evidence may or may not extend to a new colour family depending on the laboratory's extension policy, the tested article description, the project approver's acceptance, and whether the supplier can show no material construction or chemistry change. Buyer action: for any new dark shade, request written confirmation from the lab or project approver on coverage, and if no clear extension rule exists, budget for a retest. This is similar to dark-shade crocking control on brushed fleece; see AATCC 8 crocking standards for navy blankets.

Decode BS 7175 language: hazard category versus ignition source

Buyers often mix three different things: the standard, the hazard category, and the ignition source. BS 7175 sets out hazard categories for upholstered furniture in defined end uses. Within that framework, the test requirement may call up one or more ignition sources. “Source 5” or “crib 5” is market shorthand for one ignition source, not for the whole approval basis.

That matters in tender review. A blanket report that only says “Source 5 pass” without identifying the exact method title, the article submitted and the project hazard context is weak evidence. Equally, a PO that says “BS 7175 low hazard blanket” is incomplete if the consultant actually required a test to Ignition Source 5 for a lounge loose-furnishing package. The buyer needs both pieces: what the project is trying to achieve, and the exact ignition method used to support that acceptance.

Use plain wording internally: hazard category tells you the risk environment under the project spec; ignition source tells you the exact test stimulus applied by the lab; crib 5 is only shorthand and should not replace the formal wording on controlled documents.

Material routes compared: inherent FR polyester, modacrylic blends and topical FR

A 270gsm fleece blanket is a practical midweight for contract use. A typical tolerance is 270gsm ±5%; some buyers allow up to ±7% where dark brushed shades show more finishing variation. Common finished sizes are 120x150cm, 150x180cm and 150x200cm. At 150x200cm, 270gsm gives about 810g fabric mass before thread, labels and packing, with a packed unit often around 0.85 to 0.95kg depending on edge finish and packaging.

For construction, specify the blanket clearly: single-layer anti-pill polar fleece or brushed knit fleece, one-piece body, no patched joins in the visible panel, 4-thread overlock or 20 to 25mm folded hem, pile height controlled, care label in side seam, no decorative trim unless included in the fire-test submission. If pilling matters, add an appearance target such as ISO 12945-2 grade 3-4 minimum after an agreed cycle count; related guidance is in anti-pilling test requirements for polar fleece blankets.

Inherent FR polyester is usually the most stable route for repeat programmes. Expect better wash durability because the FR characteristic is in the fibre rather than added later. Trade-offs: MOQ can be higher because mills may need to book FR fibre or yarn in dedicated lots; lead time can run 1 to 3 weeks longer than standard polyester for colour development; hand feel is often slightly drier or firmer than standard premium home-textile fleece; and colour depth, especially very bright shades, may be narrower depending on the fibre platform. Cost direction is commonly above standard polyester and often above topical FR on first order, but repeat risk is lower.

Modacrylic or other FR blends can work where the specifier accepts the route and the comfort profile matters. They may offer a different hand, warmth and drape, but buyers should watch abrasion, tensile retention, pile appearance and supply continuity. MOQ can be moderate to high because blend spinning or yarn sourcing is less flexible. Lead time risk is usually similar to or slightly higher than inherent FR polyester. Shade range can be acceptable, but exact deep-shade matching and repeatability should be checked early. Cost direction is often mid to high.

Topical FR treatment is the most common budget-led route for short or irregular programmes. The entry MOQ can be lower if a standard base fleece is treated to order, but this route carries the highest process risk. Hand feel may stiffen, odour can appear if finishing is not well balanced, shade shift is more likely, and durability after domestic or institutional laundering must be proven on the finished blanket, not assumed from the chemistry supplier's brochure. Lead time risk can rise if the treatment house, dyehouse and sewing line are not tightly coordinated. Cost can be attractive on the first quote, but retest, failure and rework risk are higher.

Buyer rule: if the project expects repeated laundering, lean toward inherent FR routes unless the specifier has already accepted a topical route with a stated wash-retention requirement. For adjacent construction planning, see fleece weight throw blanket program and flannel fleece blanket orders at 260gsm.

Lab report fields buyers should request, line by line

Ask two separate questions. First: is the laboratory accredited for the exact test method within its published scope? Second: does the exact method and article configuration shown on the report match the project requirement? A recognised lab name alone is not enough.

For procurement control, the report should show at least these fields clearly: article description; construction such as brushed knit anti-pill fleece, single layer; fibre content; mass per square metre; colour or shade; edge finish such as overlock, folded hem or binding; dimensions or submitted configuration; sewing thread, labels and trims if present; conditioning and any pre-treatment; exact ignition source and method title; result; issuing laboratory; and report number plus date or version. If the report uses photos, keep those too because they help confirm configuration match.

Where wash durability is part of the requirement, ask the lab or project approver whether the submission must be tested after a stated number of wash cycles, and make sure the report or supporting record identifies the laundering method. For fleece appearance and colourfastness on the same SKU, buyers often pair the fire file with agreed routine controls such as colourfastness to washing, dry/wet rubbing, dimensional change and pilling; see blanket care washing guide and custom blanket lead times and shipping.

If any key field is missing, the report may still be genuine but weak as a buying document. Ask the supplier for a clarified article description, a lab-issued addendum if available, or a new submission. Do not let the sales invoice, carton labels and report describe three different products.

Document hierarchy and change-control triggers

A strong approval file follows a clear hierarchy. 1: project specification or employer's requirements. 2: consultant or fire engineer clarification if the blanket is being treated as a loose furnishing outside the standard furniture scope. 3: accredited lab report on the submitted article. 4: supplier declaration linking the bulk SKU to the tested article. 5: pre-production sample signoff covering colour, hand feel, edge finish and labels. If those documents conflict, the higher document in the hierarchy governs until the approver issues a revision.

Set change-control triggers in the PO. Retest or written re-approval should be reviewed if any of these change: fibre platform, FR chemistry route, GSM outside tolerance, pile height or brushing intensity, colour family, dyehouse or treatment house, sewing thread type, label material, edge finish, backing or lamination, added trims, size ratio, or manufacturing site. Those are not minor cosmetic changes; they can alter the tested article.

Buyer action is concrete: make the supplier notify changes before production, not after shipment. Attach the approved article photo, sealed swatch and report reference to the bulk order file, and state that substitutions require written buyer acceptance. This turns abstract compliance language into a workable control system.

RFQ and PO wording buyers can paste into documents

Use a fixed checklist on every enquiry and order. Minimum fields: end use; project name and jurisdiction; size and tolerance, for example 150x200cm ±3%; finished mass 270gsm ±5%; construction; edge finish; colour; FR route; required ignition method; wash-durability requirement if any; label content; carton marking; AQL; and approval documents required before bulk. For routine physical inspection, many buyers use AQL 2.5 major / 4.0 minor on finished packed goods, with tighter inline checks on shade, size and workmanship.

Sample RFQ wording: “Offer 270gsm ±5% single-layer anti-pill polyester fleece blanket, size 150x200cm ±3%, charcoal, folded hem all sides, one-piece body, no decorative trims. End use: UK contract guest-room loose blanket for named project. Supplier to confirm whether offered article requires finished blanket ignition test to exact project specification. Quote FR route, MOQ, lead time, wash-durability basis, and whether existing approved evidence covers selected shade and edge construction.”

Sample PO wording: “Bulk production shall match approved pre-production sample and tested article configuration in fibre content, GSM, brushing level, colour family, edge finish, sewing thread, labels and manufacturing route. Supplier shall provide lab report showing article description, construction, mass per square metre, colour, edge finish, dimensions/configuration, ignition source, conditioning, result, issuing lab and report date/version. Any change to colour family, GSM tolerance, trim, label material, sewing thread, finishing route or factory requires buyer written approval before production.”

Add packing controls if freight efficiency matters: folded dimension, polybag requirement, barcode label position, carton count, carton gross-weight cap such as 12 to 15kg, and Incoterms such as FOB Ningbo or CIF destination port. Those details prevent the fire-approval file from drifting away from the shipped SKU.

Frequently asked

Can a supplier claim a blanket is “BS 7175 compliant” without a finished blanket report? That wording is risky. If the project requires the blanket itself to be assessed against a named ignition source, a fabric report or FR fibre statement is usually not enough. Ask for a finished article report, or written specifier acceptance that the blanket is outside the furniture scope and is being accepted by another route.

Is “Crib 5” the same as BS 7175? No. “Crib 5” is shorthand commonly used for Ignition Source 5. BS 7175 is the broader standard framework covering hazard categories and ignition sources for upholstered furniture composites. A PO should state the exact method wording, not just the slang term.

What exact fields should appear on the fire-test report for a blanket? At minimum: article description, construction, fibre content, mass per square metre, colour, edge finish, dimensions or submitted configuration, sewing thread/labels/trims if present, conditioning or pre-treatment, exact ignition source and method title, result, issuing laboratory, report number, and report date or version.

If I change colour from light grey to navy, can I still use the same report? Maybe, but do not assume so. Coverage depends on the lab's extension rules, the submitted article description, whether chemistry or construction changed, and whether the project approver accepts that extension. For dark shades, ask for written confirmation or retest.

Which FR route is safest for repeat hotel or care orders? Usually inherent FR polyester is the lowest-risk route for repeat laundering and repeat production control, although it can carry higher MOQ and a firmer hand. Topical FR may quote lower initially, but buyers should budget for greater wash-durability and repeatability risk.

What production changes should trigger a re-approval review? Any change to fibre platform, FR chemistry route, GSM outside tolerance, pile or brushing level, colour family, dyehouse or treatment house, sewing thread, label material, edge finish, trims, size ratio or factory should trigger a review. Keep those trigger points in the PO and supplier quality agreement.

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