Terminology
- Sustainability
- Resource recovery
- Circular economy
- Bioeconomy
Types of samples:
- Samples - The entire sample volume is taken out at once.
- Mixed samples - A sample consisting of several random samples taken over a longer period of time, often over a day. The test is then called a 24-hour test or24-hour mixed test.. Other time intervals can also be used.
- Time-proportional test - One mixed sample which consists of equal samples taken at a constant time interval over a longer period, e.g. a sample every five minutes.
- Quantity proportional sample - One mixed sample consisting of random samples where the amount of sample taken is in a certain ratio to the amount of water that passes at any given time the sampling site.