How to Write Defect Acceptance Criteria for Shisha Charcoal

Shisha charcoal defect acceptance criteria should connect a defined condition with an inspection unit, method, evidence record and agreed decision rule. Start with the buyer’s concern, then replace vague phrases such as too many broken cubes or poor packaging with descriptions another reviewer can apply to the identified goods.

Record the product, nominal size, specification revision, packaging configuration and intended inspection population. A criterion written for one configuration should not silently apply to a different cube size, retail pack or master carton. Identify the buyer, supplier and inspector who will review the schedule.

Keep three decisions separate: describing a condition, recording its observed extent and deciding whether the inspected goods are accepted. A photograph can help explain a condition; it does not establish the sampling plan or acceptance limit. This guide supplies a buyer drafting framework and no universal tolerance, batch pass rate or current Unimax result.

For broken cubes, specify the physical condition that qualifies and the counting unit. Decide whether the record counts affected original cubes, separate pieces or a defined mass fraction. A collection of fragments cannot be reliably converted into original cube counts without an agreed reconstruction rule.

For chipped cubes, define how a localized edge or corner loss is distinguished from a broken cube. Use a stated observation or measurement method, reference images and any buyer-proposed boundary that the supplier and inspector must confirm. Avoid an unsupported claim that a particular chip dimension is an industry standard.

For fines, agree how the fraction will be separated and measured. If a sieve-based method is proposed, identify the equipment or aperture, preparation, handling and weighing procedure. Fines judged visually and fines determined by a specified separation method are different records and should not share an unexplained percentage.

State what happens when one item meets more than one category. Keep all relevant observations, but define how the chosen reporting basis treats overlap. Otherwise, the same chipped and undersized cube could be counted twice in a total intended to represent affected units.

Retain acceptable and unacceptable reference examples under a controlled revision. Label them as agreed examples for the order, not proof of the condition of every future lot. Document ambiguous cases for review rather than letting each inspector invent a boundary.

For cube dimensions, identify the characteristic, measurement location or orientation, units, instrument requirements and applicable specification limits. Record the number of distinct cubes measured and keep their source identities. Several readings on one cube are not several independently selected cubes.

For retail packs and cartons, name the condition being checked: an open seal, tear, missing component, incorrect grouping or another defined departure from the approved packing specification. Specify the unit, such as one retail pack or one master carton, and the method used to inspect it.

For marks and artwork, reference the approved file and revision, required fields, placement and any agreed legibility or code-reading check. A wrong revision, missing lot reference and unreadable mark should be distinct observations when they answer different buyer questions.

Do not use a general phrase such as packaging must be perfect as the release rule. It gives the inspector no reproducible boundary. Conversely, a visible cosmetic difference should not automatically receive a severe classification without considering the agreed requirement and its effect.

Any destination-specific marking or quantity requirement needs its own confirmed current source and responsible review. This page sets no legal tolerance or mandatory labeling rule. Record the actual applicable requirement rather than assigning legal significance to a buyer preference.

Name the denominator for every proportion. Depending on the characteristic, the record might concern affected cubes out of cubes examined, affected packs out of packs inspected or a defined fines mass out of the examined product mass. Do not compare these quantities as if they were the same measure.

Illustrative counting only: one inspected pack with a seal issue and an incorrect mark contains two recorded nonconformities but is one affected pack. If another pack has only a mark issue, the record contains three nonconformities across two affected packs. This example sets no acceptable count or rejection threshold.

Separate the item-level rule from the lot-level decision. A dimension outside the agreed item limit is an observation under that rule; the disposition of the inspection lot depends on the agreed acceptance procedure. Record the sampling-plan reference, selection, sample size and decision parameters where applicable.

Severity classifications such as critical, major and minor require explicit agreed meanings and assignments. Do not copy a generic AQL or assume a severity label automatically supplies an acceptance number. Where a formal sampling standard is requested, have the responsible provider confirm its applicable procedure and parameters.

State how missing evidence, inaccessible stock and borderline measurements are handled. An unmeasured characteristic is pending evidence, not a pass. Apply the agreed treatment of measurement uncertainty and rounding rather than adding an improvised allowance at the inspection.

Sample evaluation can reveal objections and help draft measurable requirements. Record each observation against the sample ID and evaluation conditions. Positive feedback on that sample does not by itself confirm a production-lot sampling plan, numeric acceptance limit or contractual release condition.

Convert the feedback into a proposed schedule, then obtain the relevant buyer and supplier agreement and inspector method confirmation before the production inspection. Record document revision, date, references and the order or configuration covered. Mark unresolved fields pending instead of treating a blank as consent.

Keep the approved sample reference linked to the written criteria. If the sample and written specification appear inconsistent, resolve that discrepancy before inspecting the order. Identify the controlling reference through the parties’ agreed process rather than allowing the inspector to choose silently.

Changes after agreement need a revision record and clear applicability. Do not retrospectively relax a criterion to erase an unfavorable observation. Retain the original findings, the reason for any revised requirement and the parties’ recorded decision about the affected goods.

For each finding, retain the criterion ID, lot and sample references, actual observation or reading, method, relevant photograph and reviewer. Keep measured facts separate from interpretations about cause. A pack damage observation does not by itself identify when or why it occurred.

Agree who reviews the report, who acknowledges a hold and who may approve release or an exception under the order process. Record the condition to resolve, correction required, verification evidence and timing. The existence of an inspection report does not automatically grant the inspector authority to stop dispatch.

Define reinspection scope after a correction, including the affected goods, selection method and criteria revision. Preserve the first result and the reason for the follow-up. Repeatedly collecting new samples until a favorable result appears does not resolve the original nonconformity record.

Close the schedule with a documented disposition and any open conditions. Use the template below as a drafting record; confirm current specifications, identified samples and inspection arrangements for the actual inquiry before presenting it as an agreed acceptance schedule.

NIST describes a lot acceptance sampling plan as a sampling scheme together with decision rules. That distinction matters here: reference images and condition definitions help classify observations, while the agreed plan determines how inspection findings support the lot disposition. This worksheet does not replace that plan.

NIST: lot acceptance sampling plans →

Share your destination, product and packing requirements, approved references and buyer objections. Request current specifications, identified samples or an agreed inspection scope. Include proposed measurement methods and decision contacts so the acceptance schedule can be reviewed for the inquiry.

Factory and quality evidence · Shisha charcoal products · Contact Unimax

Related buyer guides

Evaluate a shisha charcoal sample · Prepare a pre-shipment inspection · Choose an inspection scope · Record pack count variation · Sample across cartons and lots