The method
Before using the result
- This is a local worksheet. Findings and supplied criteria remain the responsibility of the person recording them; the output is not a certificate or regulatory approval.
- No universal grease threshold or mandatory cleaning interval is inferred.
Worked examples
These original training examples illustrate the method for IKECA Certified Exhaust Systems Inspector (CESI) Examination. Use the matching “Load example” button above to explore a variation; example values are not equipment settings or prescribed criteria.
1. Worked example
Compare deposit measurements taken at the same location using the same documented method. A trend record does not automatically establish a cleaning threshold.
- Compare a supplied criterion
- No
Supplied deposit measurements
| Measurement date | Location | Material | Instrument ID | Mode / measurement method | Reading on stated scale | Instrument reading unit |
|---|---|---|---|---|---|---|
| 2026-10-01 | Duct A | Deposit | Gauge A | Documented depth method | 0.2 | mm |
| 2026-10-10 | Duct A | Deposit | Gauge A | Documented depth method | 0.3 | mm |
- Group readings by location, material, instrument, mode and unit.
- Compare trends only within the same series. An instrument scale is not automatically a moisture percentage.
- Readings recorded: 2
- Like-for-like series: 1
No drying target, microbial conclusion or cleaning threshold is inferred from these readings.
2. Comparison example
Compare a different supplied condition using the same method. For Kitchen Exhaust Exam, the important check is that the input meaning, units and method assumptions still match the problem.
- Compare a supplied criterion
- No
Supplied deposit measurements
| Measurement date | Location | Material | Instrument ID | Mode / measurement method | Reading on stated scale | Instrument reading unit |
|---|---|---|---|---|---|---|
| 2026-10-01 | Duct B | Deposit | Gauge A | Documented depth method | 0.1 | mm |
| 2026-10-10 | Duct B | Deposit | Gauge A | Documented depth method | 0.15 | mm |
- Group readings by location, material, instrument, mode and unit.
- Compare trends only within the same series. An instrument scale is not automatically a moisture percentage.
- Readings recorded: 2
- Like-for-like series: 1
No drying target, microbial conclusion or cleaning threshold is inferred from these readings.
Check your understanding
1. Which relationship is used?
Preserve date, location, method and units to compare like-for-like deposit measurements.
2. Which assumption should you check first?
This is a local worksheet. Findings and supplied criteria remain the responsibility of the person recording them; the output is not a certificate or regulatory approval.
3. How should you verify a different unit system?
Convert every input to the displayed calculation units first. Equivalent physical inputs must give equivalent results; a unit label alone does not convert a number.
Continue with the matching exam topic
This tool connects to IKECA Certified Exhaust Systems Inspector (CESI) Examination free practice. Work through a question independently, then use the calculation steps to identify where your method differs. The tool stays free whether or not you choose paid preparation.