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Available monthly Includes 10 lyophilized standards with at least 1 total and fecal positive, 1 total positive and fecal negative, 1 total and fecal negative, and 1 blank. The standards are applicable to all SDWA promulgated methods–MF, MPN, presence/absence and ONPG-MUG. In addition to being available in our regular monthly WS studies, the WS Coliform MicrobE™ (Cat# 080) are also available in exclusive shorter duration studies. By focusing solely on your microbiology PT study needs, these studies can be completed in less than 1/3 the time of the regular WS studies. These studies are also EPA/NELAC compliant. They are open for only 11 instead of the typical 45 days. ERA will issue your evaluation reports within 7 days instead of the typical 3 weeks. The same set of 10 as described above for the WS Coliform MicrobE™ studies is included. WS-506 January 15 to January 6
WS-507 March 1 to March 3 WS-508 May 14 to May 5
WS-509 July 16-July 7 WS-510 Sept 17-Sept 28
WS-511 Nov 9-Nov 20
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