AS ISO 10987:2021 Earth-moving machinery – Sustainability 一Terminology, sustainability factors and reporting.
reprocessing in a production process of the waste materials for the original purpose or for other purposes, together with processing as a means of generating energy
[SOURCE: ISO 16714]
ability of component parts, materials or both that can be diverted from an end-of-life stream to be recovered
[SOURCE: ISO 16714]
common unit of measure for greenhouse gas emission used to calculate the total greenhouse gas effect
(global warming potential) of different greenhouse gas emissions
global warming potential
relative measure of how much heat a greenhouse gas traps in the atmosphere
4 Susta inability factors
The sustainability factors presented in Table 1 apply for achieving the sustainability balance between environmental, social and economic needs during an earth-moving machine’s useful life and end-of- life. The useful life typically has the greatest impact on that balance. This impact is taken into account in the development process and the sustainability information for both useful life and end of life is covered in Table 1.
The general sustainability principles of ISO 14040 and ISO 14044 apply for the machine development process and manufacturing process.
Estimates taken from the application of these sustainability factors can be used to provide information for the work site or work project. The work-site energy efficiency (see 4.2) and GHG (see 4.3) factors are best evaluated at the actual work site or work project level, where the total amount of energy/fuel used can be measured relative to the amount of work done to complete the work project.
NOTE Due to the variability and variety of machine operations (e.g. applications, operator skill or terrain). the estimates of energy use are not sufficiently accurate to enable comparisons between different machine models and sizes.
4.2 Work-site energy efficiency
The work-site energy efficiency factor is defined as the energy used for the work done to complete the project. It is generally expressed in units of material moved per amount of energy used/fuel consumed. Common units are cubic metres or tonnes of material per kilowatt hour of energy used. For some applications, the distance that material is moved can be an important parameter, so the energy efficiency could be given in units of cubic metres or tonnes of material per distance in metres per kWh energy used. Determining energy efficiency for machines requires measuring both their energy use and the machine productivity.
The contributions of individual machines to the work-site energy efficiency can be estimated by the energy use/fuel consumption of machines versus the amount of work done. The amount of energy/fuel that a machine uses depends upon the particular application and on the machine load factor for the application. An example of a method for estimating machine energy efficiency is provided in Annex B.AS ISO 10987 pdf download.