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ASTM D4137-82(2012)

Current Revision

Standard Practice for Preserving Phytoplankton Samples (Withdrawn 2020)

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1.1 This practice describes the proper procedure for preserving phytoplankton samples with either formaldehyde or Lugol's solution

1.2 This standard does not purport to address all of the safety problems, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.


4.1 Formaldehyde solution can be used as a permanent preservative of algae. Lugol's solution can be used to preserve algae for up to one year. Lugol's is a more suitable preservative for delicate algae such as naked flagellates.

SDO ASTM: ASTM International
Document Number D4137
Publication Date Sept. 1, 2012
Language en - English
Page Count 2
Revision Level 82(2012)
Supercedes
Committee D19.24
Publish Date Document Id Type View
Sept. 1, 2012 D4137-82R12 Revision
April 1, 2004 D4137-82R04 Reaffirmation
Oct. 10, 1998 D4137-82R98 Reaffirmation