| Guideline | Reason
|
Minimise energy consumption during use by:
- using lowest energy consuming components
- using default power down mode
- the insulation of heating components
| Decrease energy consumption during life |
Minimise amount of consumables used during the use stage by:
- product design e.g. permanent filters instead of paper filters
- minimise leakage, e.g. by installing a leak detector
- reusing consumables, e.g. reuse water from washing facilities to flush toilets
- clear instructions to prevent misuse, e.g. by providing instructions on the product itself
- product design to prevent spillage, e.g. provide instructions on how often a product, such as filter cartridges, should be replaced, or by designing the filling inlet large enough to to prevnt spilling
- use of calibration marks to restrict required amounts of consumables, e.g. dosage for laundry detergents
- product design that stimulates sustainable behaviour, e.g. only reusable cups and no disposable cups provided at drinks dispenser or double sides copies default option
| Decrease the amount consumables used by a product during its life
|
| Optimise life time of product by increasing reliability and durability
| Decrease need for new products, hence decrease material and energy use for production
|
Design for easier maintenance and repair by:
- indicate opening instructions for cleaning and/or repair
- indicate parts for maintaining by colour codes
- make location of wear detectable on parts
- make vulnerable parts easy to dismantle and replace
| Increase life span of a product by easier repair and maintenance
|
| Design in modular product structure | Enable upgrading, hence prolonging of life time, of products at a later date
|
| Avoid designs with a technical life span which outdates the aesthetic life span
| Decrease disposal of operational products because of outdated aesthetic design
|
| Design product to meet possible future needs of users | Extend possible life span of products |
Minimise the use of:
- periodical consumables such as batteries, cartridges and containers
- liquid materials for maintenance such as cooling liquid or lubricants
- any consumables containing toxic or otherwise hazardous materials
| Decrease use of consumables in any form during the use stage of the products life span
|
| Minimise generation of gaseous emissions such as CO2 and tetraethyl lead, odours or any other undesirable emissions
| Decrease emissions during usage stage of life span
|
