Benchcraft / Field notebooksMethod & source ↓

Notebook 02   /   Facilities & cleaning

Waste contamination sample

Compare a sample of a waste stream against the site’s own contamination target.

Prepared for Site services coordinator

01 / Working inputs

Set the scope

The example is ready to edit. Use the same job and period for every figure.

02 / Live working sheet

Result

Observed contamination
11.6%
Excess at current sample mass
4.5 kg
Target variance
3.6 pp

Owner’s next step Repeat with comparable sampling locations before changing collection arrangements.

Calculations and exports run on this device.

03 / Calculation notes

How to read it

The excess assumes a fixed sample mass. This is a site target, not a statutory standard.

Worked example
Observed contamination · 11.6%

04 / Original adaptation

Where it came from

A cleaning owner converts site observations and cost assumptions into a bid. Independent application for site services coordinator teams. The figures are editable examples created for this worksheet.

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