Hazardous Installations Directorate (HID)
HID semi-permanent circulars (SPCs)
Technical
Technical General
Technical Onshore
| Class | Definition |
|---|---|
| SPC/TECH/LD1-4/05 | Vapour cloud explosions (VCE) [115KB] |
| SPC/TECH/LD1-4/06 | The reprocessing of waste motor oil: explosion hazard due to petrol contamination [87KB] |
| SPC/TECH/LD1-4/07 | Failure of spiral wound graphite filled gaskets [1.61MB] |
| SPC/TECH/LD1-4/08 | Advice on bulk chlorine installations [59KB] |
| SPC/TECH/LD1-4/10 | Procedure for settling land use planning zones for major accident hazard pipelines [63KB] |
Technical Mining
| Class | Definition |
|---|---|
| SPC/TECH/LD5/01 | Fires in steered vehicles in UK mining [158KB] |
| SPC/TECH/SI1/03 previously SPC/TECH/LD5/03 |
Explosives use at mines |
| SPC/TECH/SI1/04 previously: SPC/TECH/LD5/04 |
Arrangements for drilling notifications & enforcement at onshore borehole sites |
| SPC/TECH/LD5/05 | Idler roller nip hazards on heavy duty belt conveyors [182KB] |
| SPC/TECH/LD5/07 | Application of audit inspections in the mining sector [99KB] |

