1 This practice is under the jurisdiction of ASTM Committee D19 on Water and Last previous edition approved in as D –98ε1. We are a chemical company that manufactures Sea Salt ASTM D , water-rite . 年3月6日 ASTM D()海水代用品_能源/化工_工程科技_专业资料。Designation: D – 98 (Reapproved ) An American National.
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A mixture of dissolved mineral salts and sometimes vitamins that simulates seawater. Unless otherwise indicated, it is intended that all reagents shall conform to the speci? Examples are for tests on oil contamination, detergency evaluation, and d114198 testing.
Note 2 — The lack of organic matter, suspended matter, and marine life in this solution does not permit unqualified acceptance of test results as representing performance in actual ocean water.
ASTM D – 98() Standard Practice for the Preparation of Substitute Ocean Water
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An added refinement in adjustment of heavy metal concentration is provided by the addition of a small aliquot of the third stock solution to the previous solution. The pH after aetm with 0. A superscript epsilon e indicates an editorial change since the last revision or reapproval. Preparation of Substitute Ocean Water 6.
Sodium bicarbonate D1141-8 3. Store in well stoppered glass containers. Where corrosion is involved, the results obtained from laboratory tests may not approximate those secured under natural testing conditions that differ greatly from those of the laboratory, and especially where effects of velocity, salt atmospheres, or organic constituents are involved.
A number in parentheses indicates the year of last reapproval. Historical Version s – view previous versions of standard.
Current edition approved Aug. Store in well stoppered amber glass containers.
This page was last edited on 12 Novemberat NOTE 2—The lack of organic matter, suspended matter, and marine life aetm this solution does not permit unquali? F1141-98 comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend.
Users of this standard are expressly advised that determination of the validity of any such patent rights, and the risk of infringement of such rights, are entirely their own responsibility.
Add mL of Stock Solution No. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are aatm provided as part of the standard. Artificial seawater is primarily used in marine biology and in marine and reef aquariaand allows the easy preparation of media appropriate for marine organisms including algaebacteriaplants and animals.
Retrieved 10 November Also the rapid c1141-98 of reacting elements present in low concentrations suggests caution in direct application of results.
This standard has been approved for use by agencies of the Department of Defense. The substitute ocean water with heavy metals, prepared in accordance with Section 7, will have the complete composition shown in Table X1.
From a scientific perspectiveartificial seawater has the advantage of reproducibility over natural seawater since it is a standardized formula. Steady-state growth and ammonium uptake of a fast-growing marine diatom Archived at the Wayback Machine.
Sodium sulfate Na 2 SO 4. From Wikipedia, the free encyclopedia. Where corrosion is involved, the results obtained from laboratory tests may not approximate those secured under natural testing conditions that differ greatly from those of the laboratory, and especially where effects of velocity, salt atmospheres, or organic constituents are involved.
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. Trace elements, occurring naturally in concentrations below 0.