ASTM D 3731 : 2020
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
View Superseded by
Standard Practices for Measurement of Chlorophyll Content of Algae in Surface Waters
Hardcopy , PDF
12-11-2024
English
01-06-2020
Important note : Users cannot be edited or removed once added to your Multi user PDF.| Committee |
D 19
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| DocumentType |
Standard Practice
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| Pages |
5
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| PublisherName |
American Society for Testing and Materials
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| Status |
Superseded
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| SupersededBy | |
| Supersedes |
1.1These 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:
1.1.1Spectrophotometric, trichromatic practice for measuring chlorophyll a, b, and c.
1.1.2Spectrophotometric, monochromatic practice for measuring chlorophyll a corrected for pheophytin a; and for measuring pheophytin a.
1.1.3Fluorometric practice for measuring chlorophyll a corrected for pheophytin a; and for measuring pheophytin a.
1.2The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.3This 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.
1.4This 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.
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| ASTM D 1129 : 2013 : R2020 | Standard Terminology Relating to Water |
| ASTM D 1129 : 2013 : R2020 : EDT 2 | Standard Terminology Relating to Water |
| ASTM D 1129 : 2013 : R2020 : EDT 1 | Standard Terminology Relating to Water |
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