2.15 Physical standard type (for use by authorized service providers only)
Indicates the type of physical standard used for the examination, entered as a numerical value on the Device Examination Worksheet.
| Code | Description |
|---|---|
| 1 | Open neck prover |
| 3 | Gravimetric prover |
| 4 | Vapour displacement prover |
| 5 | Pipe prover |
| 6 | Mass standard (volumetric) |
| 7 | Mass standard (gravimetric) |
| 8 | Reference meter prover |
| 10 | Pipe prover with entirely mechanical means of registration |