Potable Water Coliform Microbe, WS

Each sample set consists of lyophilized samples for the presence or absence analysis of total coliform, fecal coliform, and E. coli. The standards are applicable to all SDWA promulgated methods-MF, presence/absence and ONPG-MUG. The Potable Water Coliform Microbe PT standard is available in all 12-monthly WS studies. The PT and QR include ten lyophilized samples and the CRM includes five lyophilized samples.