Editing Total suspended solids (section)

{{short description|Water quality parameter}}
'''Total suspended solids''' ('''TSS''') is the [[Dry matter|dry-weight]] of [[suspended solids|suspended particles]], that are not dissolved, in a sample of water that can be trapped by a [[filter (chemistry)|filter]] that is analyzed using a filtration apparatus known as sintered glass crucible. TSS is a [[water quality]] parameter used to assess the quality of a specimen of any type of water or water body, ocean water for example, or [[wastewater]] after treatment in a [[wastewater treatment plant]]. It is listed as a [[conventional pollutant]] in the U.S. [[Clean Water Act]].<ref>United States. Clean Water Act, sec. 304(a)(4), {{USCSub|33|1314|a|4}}.</ref> [[Total dissolved solids]] is another parameter acquired through a separate analysis which is also used to determine water quality based on the total substances that are fully dissolved within the water, rather than undissolved suspended particles.

TSS is also referred to using the terms '''total suspended matter''' ('''TSM''') and '''suspended particulate matter''' ('''SPM'''). All three terms describe the same essential measurement. TSS was previously called '''non-filterable residue''' ('''NFR'''), but was changed to TSS because of ambiguity in other scientific disciplines.