1.1 This practice covers the procedures for obtaining quantitative samples of a phytoplankton community by use of water-sampling bottles.
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 The advantages of water-sampling bottles are as follows:
4.1.2 A quantitative sample is obtained. Nanno- and ultraplankton are not lost from the sampling device.
4.2 The disadvantages of water-sampling bottles are as follows:
4.3 There are several special considerations that shall be observed when using water-sampling bottles. They are as follows:
4.3.2 Following use, the samplers should be hung open in a horizontal position to allow for thorough drying.
4.3.3 The end stoppers should be inspected periodically for signs of wear or deterioration and replaced as necessary (Fig. 1a, b, c).
SDO | ASTM: ASTM International |
Document Number | D4136 |
Publication Date | Sept. 1, 2012 |
Language | en - English |
Page Count | 2 |
Revision Level | 82(2012) |
Supercedes | |
Committee | D19.24 |