The methods used are accredited by UKAS to ISO / IEC 17025:2015.
Endotoxins are released as a result of the breakdown of Gram Negative bacteria. Endotoxins are also known as pyrogens because they cause fever and inflammation in humans.
A sterile device or water sample could still contain high levels of endotoxin which could cause illness in a patient.
The laboratory uses Limulus Amoebocyte Lysate (LAL) tests to detect amounts of endotoxin.