TP22-22: Importance of Laboratory Accreditation for Legionella Validation TestingASHRAE introduced ASHRAE ANSI Standard 188 2015 at the end of June 2015, just before a significant Legionella outbreak in New York City. Since then, CTI has published Guideline 159 and ASHRAE has revised Guideline 12 2000. In the 2018 revision of Standard 188, there was a language change in Appendix C, requiring labs performing routine microbiological testing of water samples to be accredited to a national or international standard. Such testing is an

Understanding how temperature

and monitoring biofilm clean-up are described

absorb the axial thermal movement of 0

Radiation (the World Trade Center consumes as much energy as the entire city of Schenectady)

meant to last twenty or more years

This may be for cooling condensers in power plants

The most frequently used product is a 3:1 ratio of 5-Chloro-2-Methyl-4-Isothiazolin-3- one (CMIT) and 2-Methyl-4-Isothiazolin-3-one (MIT)

There are many reasons for this but primarily Halogen is different from every other type of water treatment because unlike other water treatment chemicals halogens are continuously being consumed or depleted

The cooling water treatment program is designed to control CaCO3 scaling at Langelier Saturation Index values approaching +3

The magnitude of sound reduction for each technology will be illustrated

Case 1 illustrates the se of a large cooling system as a repository for demineralizer waste

and make more recommendations specific to evaporative cooling equipment for verification of post-test functionality