The Water Environment Federation’s Standard Methods Online offers unlimited simultaneous access for all through an IP subscription program. The online, state-of-the-art research tool features over 100 US EPA-approved methods; unlimited downloads; fully searchable text; access to a community of experts; an E-newsletter and notification of revisions, new materials and US EPA approvals. The companion 21st Edition print version contains hundreds of the most current practices in laboratory tests of water quality and properties, over 400 methods, eight full-color pages of aquatic algae illustration and over 300 illustrated [email protected]
Manufactures Name
Water Environment Federation