Prefabricated Petrol/Oil Interceptor (Separator) Quantity Calculator
Prefabricated petrol/oil separator to BS EN 858-1/858-2 and SHW Cl. 519, in Class 1 or Class 2 full-retention or bypass configuration. Computes interceptor unit (Nr), concrete blinding, granular Class 6N surround, geotextile separator, and foundation excavation.
Slug · petrol_oil_interceptor · v1.0
Paid tier
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Prefabricated Petrol/Oil Interceptor (Separator) — a worked example, measured four ways
The same assembly at default dimensions, rendered as a Bill of Quantities under each measurement standard. Switch the standard to see how the bill changes. Change the inputs in the calculator to compute your own.
CESMM4 · 6 items · units sum, nr, m³, m²
| Code | Description | Unit | Quantity |
|---|---|---|---|
| A.4.1 | Provisional sum (Prime Cost): Prefabricated petrol/oil interceptor, NSF10, class_1 full_retention, approx 2.1t, BS EN 858 | sum | 1 |
| A.4.1.fix | Fixing only: Prefabricated petrol/oil interceptor, NSF10, class_1 full_retention, approx 2.1t, BS EN 858 | nr | 1 |
| E.4.3.5 | Excavation for foundations, maximum depth 2-5m | m³ | 75.7 |
| E.6.3.2 | Filling, imported selected material, Class 6N (selected granular) per SHW 601 Table 6/1 row 6N | m³ | 8.3 |
| F.1.1.1 | In-situ concrete blinding, C8/10, thickness 150mm | m³ | 1.19 |
| E.7.2 | Geotextile separator, 200 g/m², including laps | m² | 8.32 |
Procurement take-off: the total quantity to order of each material, from the same compute. Supplier-neutral, so you buy anywhere.
- Concrete Blinding1.19 m³
- Excavation Foundation75.7 m³
- Fill Selected8.3 m³
- Geotextile Separator8.32 m²
- Oil Interceptor1 nr
- Oil Interceptor1 sum
Illustrative example at default dimensions · engine ref 06ac8c · not a tendered quantity