Verification procedure

Standard operating procedure · issue 3 · 1996

1. Scope

This procedure governs the reconciliation of a physical count against a produced image set, for all filming and scanning work.

2. The count

The bench counts the items physically and records the figure on a tally sheet. The tally is initialled. A count made by the operator who produced the images is not a count and may not be used.

3. The check value

The check value CRC-A is defined as:

CRC-A = (page count × 7) modulo 97

expressed as <batch>-<NN>, two digits, leading zero retained. CRC-A is computed over the image set, not over the manifest. A manifest is a statement of intent; the image set is the work.

4. Reconciliation

Where the check value computed over the image set does not equal the declared value, the batch is held and the discrepancy is reported to the Managing Director in writing on the same day. No batch may be certified while held.

5. Retention

Tally sheets are retained for the life of the contract plus six years.