Copper Silver Analysis

Significance
Copper-silver ionization is a disinfection method that is used to eradicate Legionella from hot water recirculating systems. Disinfection with ionization occurs when the positively charged copper and silver ions released from the ionization system bind to the negatively charged cell wall of Legionella causing cell death. Ion concentration should be monitored to document that effective levels have been achieved and to avoid excess ion levels.

Target Range
Suggested target ion range for Legionella control: Copper: 0.20–0.80 mg/L; Silver: 0.01–0.08 mg/L

Choosing the right sampling sites is important to ensure that the proper levels of copper and silver ions are being distributed to the entire water system so that maximum disinfection will be achieved.

Test Method
EPA 200.8; Determination of Trace Elements in Waters and Wastes by Inductively Coupled Plasma-Mass Spectrometry

Turn Around Time
Contact the lab for expected turn around time.

Test Code
201

Sample Transport
See Sampling and Shipping page for instructions.

Accreditations and Proficiency
See Accreditations and Proficiency page for information on our accreditations and Legionella testing proficiency programs.