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| TYPE 1 | Mechanical Counter scales, mechanical platform scales, spring balances |
| TYPE 2 | Mechanical weighbridges, dormant platform scales, mechanical crane weighers, automatic weighing instruments |
| TYPE 3 | All weighing instruments incorporating electronic devices |
| TYPE 4 | Mechanical dispensing pumps |
| TYPE 4B | Bulk measures |
| TYPE 5 | Mechanical bulk flow meters |
| TYPE 6 | Dispensing pumps incorporating Electronic devices |
| TYPE 7 | All flowmeters incorporating Electronic devices |
| TYPE 8 | Fixed storage tanks with incorporated gauging systems |
