in which materials or products with a set of specified characteristics (3.2.5) are mixed according to defined criteria with materials or products without that set of characteristics

system where, from the production of a raw material (3.40) to the final product (3.37) for consumption, the information on sustainability (3.48) can be traced to a specific production quantity

relationship between input and output of a specific substance within a system in which the output from the system cannot exceed the input into the system [SOURCE: Adapted from ISO 6107‑3:1993 [11] and EN 16214-1:2012 [9]]

capacity of a material to store heat

comparison of physical quantities of inputs, outputs and inventory changes in a quantity centre over a specified time period

comparison of the physical quantities of inputs, outputs and inventory changes in a quantity centre (3.12.45) over a specified time period

mathematical relation among all quantities known to be involved in a measurement

in which specified characteristics (3.2.5) of a material or product are maintained from the initial input (3.2.2) to the final output (3.2.3)

in which the materials or products originate from a single source (3.2.8) and their specified characteristics (3.2.5) are maintained throughout the supply chain (3.2.1)

in which materials or products with a set of specified characteristics (3.2.5) are mixed according to certain criteria with materials or products without that set of characteristics resulting in a known proportion of the specified characteristics in the final output (3.2.3)