Packaging comparisons need an equivalent function and a stated boundary. Readers examining SPG-related environmental claims can use a life-cycle worksheet to identify what is included before comparing materials or drawing a broad conclusion.
SPG’s sustainability page presents environmental objectives associated with its packaging solutions. Read the source.
Keep the function and boundary consistent
Start with the product-protection task, shipment scenario and intended number of uses. List the stages included in each comparison, such as material supply, manufacture, transport, use and end-of-use handling. If one option omits a stage, make that difference explicit.
This worksheet is not a completed life-cycle assessment. It is a way to identify the information an assessment would need. Keep measured data separate from estimates, and do not combine results with different units or boundaries into a single ranking. A material preference alone cannot settle every packaging scenario.
Questions to put in the file
- Do the options perform the same protection task?
- Which stages and geographic routes are included?
- What use and end-of-use assumptions apply?
- Which inputs are measured and which are estimates?
A practical evidence worksheet
| Field | What to retain |
|---|---|
| Function | Equivalent product-protection requirement |
| Boundary | Included stages and route |
| Data | Measured inputs, estimates and missing information |
Worked example
A buyer compares a reusable assembly with a one-way package. The worksheet lists return movements for the first option and the stated disposal or recovery route for the second. It also records equivalent product and handling requirements. The file then identifies which data is missing instead of announcing a universal winner.
What the record can establish
Comparability comes before ranking. A transparent boundary note can be more useful than a precise-looking result built from incompatible assumptions.
Sources and scope
Public sources reviewed November 1, 2026. Company statements remain attributed descriptions, not independent certification. Examples are hypothetical. No private files, original interviews or authenticated leaks were used for this explainer. Technical or legal decisions require the relevant records and qualified review.
