Heterotrophic plate count testing drastically simplified! 


Product Info
The heterotrophic plate count (HPC), formerly known as the standard plate count, is a procedure for estimating the number of live heterotrophic bacteria in water. This test can provide useful information about water quality and supporting data on the significance of coliform test results. High concentrations of the general bacterial population may hinder the recovery of coliforms . 

The HPC is useful in judging the efficiency of various treatment processes for drinking water, swimming pools, as well as for checking the quality of finished water in a distribution system. Also for applications where boilers and cooling towers are present.

Hach’s NEW Peel Plate® HPC test drastically simplifies HPC testing:

  • No media preparation required
  • R2a media with proprietary indicator is easy to read and count
  • Convenient stacking
  • Flexible for direct addition or filtration samples
  • Long shelf-life

PP Procedure

Product Video

Application Articles
Learn more about Heterotrophs – Heterotrophs are a group of microorganisms including yeasts, molds and bacteria that use organic carbon as their sole carbon and energy source.  This classification is in contrast to autotrophic organisms such as algae that can utilize inorganic carbon and sunlight for their needs.  The overwhelming number of known species of bacteria, both aerobic and anaerobic, are heterotrophs.  Click here to learn more

Learn about Hach Peel Plate ® HPC test method – The Hach Peel Plate® test is a new innovative method developed to streamline the determination of total heterotrophic bacteria numbers in water samples.  Click here to learn more