S2Media™ 2x A-1 Medium
S2Media™ 2x A-1 Medium is a (double-strength) selective broth used for isolation and presumptive identification of fecal coliforms in water. Andrews and Presnell developed A-1 Medium in 1972 to recover Escherichia coli from estuarine water in 24 hours instead of 72 hours, and in greater numbers without pre-enrichment. A-1 Medium can be used in a single step procedure for the detection of fecal coliforms in source water, seawater, treated wastewater, and foods.
Also known as:
A1 Broth
A-1 Medium Broth
👉 Finished product meets the following standards and references:
EPA,
SM-WW,
USP-NF
🧫 Application Areas:
Water quality testing for the detection and enumeration of fecal coliforms by membrane filtration
Wastewater monitoring and regulatory compliance testing
Environmental water quality monitoring and public health surveillance
Equivalent or Comparable Item Numbers:
2560915
