We need your consent to use the individual data so that you can see information about your interests, among other things. Click "OK" to give your consent.
Standard Practices for Measurement of Chlorophyll Content of Algae in Surface Waters
STANDARD published on 1.9.2012
Designation standards: ASTM D3731-87(2012)
Note: WITHDRAWN
Publication date standards: 1.9.2012
SKU: NS-24634
The number of pages: 5
Approximate weight : 15 g (0.03 lbs)
Country: American technical standard
Category: Technical standards ASTM
Keywords:
algae surface water, chlorophyll, pheophytin, ICS Number Code 13.060.10 (Water of natural resources)
Significance and Use |
4.1 Data on the chlorophyll content of the algae have the following applications: 4.1.1 To provide estimates of algal biomass and productivity. 4.1.2 To provide general information on the taxonomic composition (major groups) of the algae, based on the relative amounts of chlorophyll a, b, and 4.1.3 To determine long-term trends in water quality. 4.1.4 To determine the trophic status of surface waters. 4.1.5 To detect adverse effects of pollutants on plankton and periphyton in receiving waters. 4.1.6 To determine maximum growth rates and yields in algal growth potential tests. |
1. Scope |
1.1 These practices include the extraction and the measurement of chlorophyll a, b, and 1.1.1 Spectrophotometric, trichromatic practice for measuring chlorophyll a, b, and 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 the standard. The values given in parentheses are provided for information purposes only. 1.3 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. Specific precautionary statements are given in Section 7. |
Historical
15.9.2008
Historical
15.9.2008
Historical
1.4.2013
Historical
1.4.2013
Historical
1.7.2006
Historical
1.7.2006
Do you want to make sure you use only the valid technical standards?
We can offer you a solution which will provide you a monthly overview concerning the updating of standards which you use.
Would you like to know more? Look at this page.
Latest update: 2024-05-09 (Number of items: 2 898 531)
© Copyright 2024 NORMSERVIS s.r.o.