CIRCULAR ECONOMY & RRBO · PRACTICAL TOOL
ULO-to-RRBO calculator
Build an evidence-labelled ULO-to-RRBO material-balance scenario, expose unaccounted quantities and distinguish measured results from illustrative inputs.
← Circular Economy & RRBO Centre
- Version
- 1.0
- Last reviewed
- Processing
- Runs in your browser
Reconcile the material before interpreting the yield.
Use one declared boundary, period and unit. Identify whether every figure is measured, documented, an illustrative estimate or not provided before relying on the result.
PRACTICAL SCREENING TOOL
RRBO mass balance and incorporation calculator
Map ULO contamination, residues and non-recovered outputs, recovered co-products, RRBO recovery and finished-lubricant incorporation. No yield, contamination or performance value is pre-filled.
ASSESSMENT STATUSInput data incomplete or invalid
Boundary rule: use the same period, facility or batch and one mass unit throughout. Enter zero only when evidence supports a genuine zero. A blank means the value is unknown.
SCREENING RESULTS
All mass values: Kilograms (kg)Mass balance and recovery indicators
- Identified contamination
- Not calculable Sum of the six contamination entries
- Screened feed
- Not calculable ULO received less listed contamination
- Feed after residues and non-recovered outputs
- Not calculable Screened feed less residues and non-recovered process outputs
- Unaccounted mass
- Not calculable Feed after residues and losses less RRBO and other recovered outputs
- Contamination share
- Not calculable Identified contamination divided by ULO received
- Residues and non-recovered outputs
- Not calculable Residues and non-recovered process outputs divided by screened feed
- RRBO recovery on screened feed
- Not calculable RRBO output divided by screened feed
- RRBO recovery on ULO received
- Not calculable RRBO output divided by ULO received
- RRBO incorporation
- Not calculable RRBO used divided by finished lubricant output
- Other blend components
- Not calculable Finished lubricant output less incorporated RRBO
- Unallocated RRBO output
- Not calculable RRBO output less RRBO used in finished lubricant
EVIDENCE COVERAGE
0%Input completeness and evidence state
0/12 numeric inputs0 measured0 documented0 illustrative12 not provided
Coverage is an unweighted completeness indicator for this tool. A field counts only when it has a valid number and is marked measured or documented. The selection records the user's evidence state; it does not independently verify the underlying record.
24 unresolved data gaps
- Enter ulo received or enter zero when a verified absence applies.
- Enter water or enter zero when a verified absence applies.
- Enter fuel or enter zero when a verified absence applies.
- Enter glycol or enter zero when a verified absence applies.
- Enter solvent or enter zero when a verified absence applies.
- Enter metals and solids or enter zero when a verified absence applies.
- Enter other identified contamination or enter zero when a verified absence applies.
- Enter residues and non-recovered process outputs or enter zero when a verified absence applies.
- Enter other recovered outputs or enter zero when a verified absence applies.
- Enter rrbo output or enter zero when a verified absence applies.
- Enter finished lubricant output or enter zero when a verified absence applies.
- Enter rrbo used in finished lubricant or enter zero when a verified absence applies.
- Record an evidence state for ulo received.
- Record an evidence state for water.
- Record an evidence state for fuel.
- Record an evidence state for glycol.
- Record an evidence state for solvent.
- Record an evidence state for metals and solids.
- Record an evidence state for other identified contamination.
- Record an evidence state for residues and non-recovered process outputs.
- Record an evidence state for other recovered outputs.
- Record an evidence state for rrbo output.
- Record an evidence state for finished lubricant output.
- Record an evidence state for rrbo used in finished lubricant.
Method boundaries
- The mass balance is: ULO received = listed contamination + residues and non-recovered process outputs + RRBO output + other recovered outputs + unaccounted mass.
- Recovery indicators are screening ratios. They are not a declaration of regulatory conversion efficiency.
- Finished-product incorporation is a mass ratio. It does not demonstrate formulation suitability, finished-oil performance or specification compliance.
- Lifecycle or carbon claims require a separately defined system boundary, allocation method, primary data and review.
Screening use only. The output does not certify chain of custody, RRBO quality, finished-lubricant performance, legal compliance, lifecycle benefit or an environmental claim.
METHODOLOGY
What the calculator does.
- Declare one system boundary, reporting period and unit before entering quantities.
- Classify every input as measured, documented, an illustrative estimate or not provided.
- Reconcile ULO input, separated contamination, process residues, RRBO, other recovered outputs and unexplained mass without hiding a balance gap.
- Assess finished-product RRBO incorporation separately from re-refinery yield.
OFFICIAL METHOD REFERENCES
Read the underlying sources.
These sources inform the tool boundary and safeguards. They do not supply universal yield or acceptance values.
- Technical Guidelines on Used Oil Re-Refining or Other Re-Uses of Previously Used OilBasel Convention ↗International technical guidance on used-oil collection, treatment and re-refining.
- Best Available Techniques Reference Document for Waste TreatmentEuropean Commission Joint Research Centre ↗Official reference covering waste reception, sampling, treatment and waste-oil re-refining.
- Commission Implementing Decision (EU) 2019/1004European Union ↗Official reporting rules defining dry waste oil and regeneration conversion-efficiency calculations for EU reporting.
- Waste Framework Directive, consolidated 16 October 2025European Union ↗Current consolidated EU definitions and waste-oil management provisions.
- ISO 22095-2:2026, Chain of custody - Mass balanceInternational Organization for Standardization ↗Official standards record for mass-balance chain-of-custody requirements.
- ISO 14021:2026, Self-declared environmental claimsInternational Organization for Standardization ↗Official standards record for substantiating self-declared environmental claims.
- Guide for Characterizing Hydrocarbon Lubricant Base OilsASTM International ↗Official record for ASTM D6074, a base-oil characterisation guide rather than a finished-product approval.
- ATIEL Code of Practice, Issue 26ATIEL ↗Current European industry quality-system guidance, including treatment of re-refined base stocks.