Logo

ASTM D3731-24

Current Revision

Standard Practices for Measurement of Chlorophyll Content of Algae in Surface Waters

$69.00

$69.00

$124.20

$83.00

$83.00

$149.40



Sub Total (1 Item(s))

$ 0.00

Estimated Shipping

$ 0.00

Total (Pre-Tax)

$ 0.00


...

1.1 These practices include the extraction and the measurement of chlorophyll a, b, and c, and pheophytin a in freshwater and marine plankton and periphyton. Three practices are provided as follows:

1.1.1 Spectrophotometric, trichromatic practice for measuring chlorophyll a, b, and c.

1.1.2 Spectrophotometric, monochromatic practice for measuring chlorophyll a corrected for pheophytin a; and for measuring pheophytin a.

1.1.3 Fluorometric practice for measuring chlorophyll a corrected for pheophytin a; and for measuring pheophytin a.

1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. Specific precautionary statements are given in Section 8.

1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.


5.1 Data on the chlorophyll content of the algae have the following applications:

5.1.1 To provide estimates of algal biomass and productivity.

5.1.2 To provide general information on the taxonomic composition (major groups) of the algae, based on the relative amounts of chlorophyll a, b, and c, and the physiological condition of algal communities, which is related to the relative abundance of pheopigments.

5.1.3 To determine long-term trends in water quality.

5.1.4 To determine the trophic status of surface waters.

5.1.5 To detect adverse effects of pollutants on plankton and periphyton in receiving waters.

5.1.6 To determine maximum growth rates and yields in algal growth potential tests.

SDO ASTM: ASTM International
Document Number D3731
Publication Date Nov. 1, 2024
Language en - English
Page Count 5
Revision Level 24
Supercedes
Committee D19.24
Publish Date Document Id Type View
Nov. 1, 2024 D3731-24 Revision
June 1, 2020 D3731-20 Revision
Sept. 1, 2012 D3731-87R12 Reaffirmation
April 1, 2004 D3731-87R04 Reaffirmation
Oct. 10, 1998 D3731-87R98 Reaffirmation