Selling warehouse scales without overstating accuracy
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A scale with an old calibration record should be described as a scale with that dated record. Do not turn the document into a claim that it is accurate today or approved for every commercial transaction.
Buyers need to assess what the equipment is, what evidence exists and what further checks their intended use requires. Start with the exact scale and indicator, since components may have been replaced.
Keep an evidence card for the complete set
| Field | What to record |
|---|---|
| Scale and indicator | Manufacturer, model and identifying references |
| Stated capacity and resolution | Exactly as documented, with the source |
| Physical dimensions | Actual platform dimensions with units |
| Calibration evidence | Issuer, date, equipment identity and document scope |
| Known changes | Repairs, replacement indicator or relocation history |
| Present observations | What was seen, without an accuracy conclusion |
| Intended-use uncertainty | Questions for the buyer's competent adviser |
Do not substitute a seller's informal test for a calibration or legal-metrology assessment. Placing a convenient object on the platform and seeing a plausible reading does not establish accuracy over the working range.
Read the calibration document carefully
Check that the record identifies the equipment offered. Note any limitations, uncertainty information or conditions stated by the provider. If the indicator has changed since the record, ask what that means for its relevance.
Keep a missing certificate visible in the file. A claim that it was calibrated regularly needs evidence if it is to appear as a factual sale statement.
HSE's maintenance guidance explains the importance of maintenance and appropriate records for work equipment. It does not establish metrological accuracy. Use a relevant specialist where the buyer needs that assessment.
Do not assume suitability for trade use
The buyer's intended transaction can raise specific requirements. Avoid describing an unidentified scale as legal for trade because it has a mark, sticker or printed ticket function. Ask for the correct current assessment for the actual equipment and use.
Verification considers more than a calibration result. The Trading Standards explanation of trade equipment verification says checks cover accuracy together with relevant design and installation requirements. Its service covers the named local authority area in England; ask the responsible weights and measures authority or an appropriate verifier about the actual equipment and jurisdiction.
Retain verification documents and information about seals, repairs and component changes separately from calibration records. Do not translate "calibrated" into "verified for this trade use".
The missing-manual guide is useful where operating information has been lost. Under HSE's second-hand equipment guidance, relevant Great Britain supply duties include adequate information for use.
Define the sale boundary
If the scale is linked to a packaging line, identify the indicator, printer, software or controls included. Do not assume a standalone buyer receives the whole connected system.
For material lots weighed using the scale, the raw-material specification guide helps keep sale quantity evidence distinct from the equipment sale itself.
Provide UK Auction Group with the evidence card and actual calibration documents. A dated, bounded description lets buyers arrange the checks they need without mistaking an old certificate for a current promise.
Sources
This guide gives general information. Equipment-specific, legal, tax and safety decisions may need a qualified adviser or competent specialist. The guides do not promise sale prices, fees or results.