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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d1141-9 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.

This standard is subject to revision at any time by the responsible technical committee and must be reviewed every? Magnesium chloride MgCl 2. For preparation of substitute ocean water, aliquots of the first two stock solutions with added salt are combined d141-98 larger volume. 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.

Preparation of Substitute Ocean Water 6. Typically, laboratory grade water is used when making synthetic salts [4]. This page was last edited on 12 Novemberat Link to Active This link axtm always route to the current Active version of the standard.

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. Also the rapid depletion of reacting elements present in low concentrations suggests caution in direct application of results. Only aastm few millilitres of NaOH solution should be required.

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Artificial seawater

While all of r1141-98 compounds listed in the recipe above are inorganicmineral salts, some artificial seawater recipes, such as Goldman and McCarthy[2] make use of trace solutions of vitamins or organic compounds.

Strontium chloride SrCl 2. From a scientific perspectiveartificial seawater has the advantage of reproducibility over natural seawater since it is a standardized formula.

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. Store in well stoppered glass containers. Retrieved 10 November There are various applications for ASTM D synthetic seawater including corrosion studies, ocean instrument calibration and chemical processing.

Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend. Steady-state growth and ammonium uptake of axtm fast-growing marine diatom Archived at the Wayback Machine.

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.

Webarchive template wayback links Articles with short description.

A mixture of dissolved mineral salts and sometimes vitamins that simulates seawater. Trace elements, occurring naturally in concentrations below 0.

Artificial seawater – Wikipedia

Add mL of Stock Solution No. Reagents and Materials 5. Synthetic seawater is also known as artificial seawater and substitute ocean water. The tables below present an example of an artificial seawater 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.

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Examples are for tests on oil contamination, detergency evaluation, and corrosion testing. NOTE 2—The lack of organic matter, suspended matter, and marine life in this solution does not permit unquali? Sodium sulfate Na 2 SO 4. Sodium bicarbonate NaHCO 3. Views Read Edit View history. Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm.

Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters. 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.

Add mL of this solution to Stock Solution No. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. By using this site, you agree to the Terms of Use and Privacy Policy.