Sample, approval, later lot

high density eva foam

Check a high density eva foam sample before you treat it as the production item. Density in g/cc, thickness and cell structure stay measurements, not adjectives. EVA Foam Sheets Sourcing does not issue its own material certificate.

Approval is a written record, not a handshake

The buyer keeps the sample file so a later batch can be compared. This desk does not store a private grade book or a hidden discount schedule.

What to check on the sample

Density and cell structure

Ask the factory to state density in g/cc or an equivalent unit and whether the piece is closed-cell or open-cell. “High density” on a search string is not a number.

Thickness and parent size

Measure thickness in inches or millimetres on the piece in hand. Parent sheet or roll size belongs next to that measurement.

Hardness only if used

If the plant uses Shore A, record the durometer and the condition. Do not invent a Shore D figure for a flexible foam.

Acceptance fields that should be complete before a lot ships

Service temperature agreed in °F or °C

Required on the approval note when heat or cold is part of the job.

Sample / production split written

A sample is not an approved production lot until this split is recorded.

Documents named for the quoted line

Progress bars here are a checklist, not a plant KPI or an ESG score.

Document types to request, not badges this site wears

Material declaration Dimensional report Named ASTM method Lot / grade page

Food-contact, drinking-water or automotive files, if needed, must name the grade and the lot. A trading-company certificate is not a substitute.

Record the high density eva foam sample before the lot

Send the axes you already have. Missing fields stay visible.

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