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GLOSSARY OF WATER PURIFICATION AND HEALTH TERMS.
This Glossary is not meant to be all-encompassing but instead contains terms used in the different forms of purification and separation.
L-Type filter |
A filter assembly in which the inlet and outlet ports are at 90 degrees to each other.
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LAL |
Limulus Amoebocyte Lysate – a reagent used in the detection of endotoxin, the pyrogen of greatest concern to the pharmaceutical industry. The LAL reagent is made from the blood of the horseshoe crab, Limulus polyphemus
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laminar flow |
A flow in which rapid random fluctuations are absent, nonturbulent.
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lead |
A natural metal used in pipes, cable sheaths, batteries, solder, and radioactivity shields. Children who are exposed to lead may have delayed physical or mental development and minor attention span deficits and learning disabilities. Exposed adults may experience kidney problems and high blood pressure.
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leaf |
Any flat filter element that holds or supports the filter septum.
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LSI |
Langelier Saturation Index – an expression of a calculation that allows the prediction of calcium carbonate precipitation at a specific condition, temperature, pH, TDS, hardness, and alkalinity.
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