Standard Practice for
Sampling Phytoplankton with Conical Tow Nets1
This standard is issued under the fixed designation D 4132; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
Click below to download Astm D 4132 – 82 (Reapproved 2004) Pdf free
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Click here to Astm D 4131 – 84 (Reapproved 1999)e1 Pdf free download