ASTM D Standard Specification for Reagent Water. Be notified when this Standard is updated or amended – Add to StandardsWatch. General Product . Designation: D – 99 e1 . 1 This specification is under the jurisdiction of ASTM Committee D on as D – 51 T. Last previous edition D – 91 . ASTM D – 99e1 Standard Specification for Reagent Water. View on Information Provider website {{ linkText }}. Abbreviation. ASTM D Amendment.

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However, the method of storage and handling of the water may itself result in contamination. All steps should be documented. Gravity feed is the preferred method if possiblesince pumps are a potential source of contamination. Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm.

Remember me for one month. Ion exchange, distillation, or reverse osmosis and organic adsorption may be required prior to distillation, if the purity cannot be attained by single distillation.

It is intended to satisfy the requirements for normal laboratory procedures, but does not necessarily apply to the large-scale production of pure water or for speci? While Type 3 water is considered usable for autoclaving, glassware rinsing or washing and water baths, Type 1 and Type 2 water are indicated for most laboratory procedures. Also, different types of contaminants affect these methods and processes differently.

It is the responsibility of the users of this standard to ensure that the selected water types or grades are suitable for their intended use. The techniques presented can help the investigator increase the accuracy of analyses performed.

Note-Because distillation is a process commonly relied upon to produce high purity water, the levels specified for Type II reagent water were selected to represent the minimum quality of water that a distillation process should produce. The use of reagent grade water should recognize that analytes may exist in water that meets the criteria listed in Section 1, but these analytes may interfere with the use of the water.


It should be noted also that the method may or may not remove non-ionized dissolved gases.

ASTM D – 91 Standard Specification for Reagent Water

This should be achieved by air? The National Institute of Health NIHDivision of Technical Resources has released guidelines that detail the type of water purity system that should be used in various scientific disciplines and for specific applications.

Therefore, the selection of an alternate technology in place of the technology speci? Pure water has a resistance of Learn more about water purification systems offered at Laboratory-Equipment. Are you sure you want to empty the cart? C Type III grade of reagent water shall be prepared by distillation, ion exchange, continuous electrodeionization, reverse osmosis, or a combination thereof, followed by polishing with a 0.

Type 2 water is routinely used to wash and rinse glassware, either manually or in the final rinse cycle of an automatic glassware washer. Such contaminants were not necessarily considered by asfm performance characteristics of the technology previously speci?

Feed water to the? The measurement is calculated from the total carbon in a water sample, subtracting out inorganic carbon from dissolved carbon dioxide and carbonic acid salts to arrive at the TOC Count.

ASTM D1193 water testing lab

The material of the storage reservoir in contact with water should be selected to minimize the release of extractables. No further reproductions authorized. A number in parentheses indicates the year of last reapproval. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the risk of infringement of asgm rights, are entirely their own responsibility. Thus, measuring the amount of these toxins in a laboratory water system is significant when measuring water purity.


Resistivity will only measure ionic impurities and does not account for organic compounds from biological contaminants. May also be d1193-9 hyper? As atmospheric organic compounds and those from sampling vials rapidly contaminate exposed puri? Type I reagent qstm may be produced with alternate technologies as long as the appropriate constituent speci?

This procedure is most easily carried out by autoclaving at kPa 15 psi for 20 min. Because astn may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. D Terminology Relating to Water.

Definition of ASTM D1193-91

Practices D and D should be consulted. After each sanitization, veri? Please e1193-91 to your authorized staff account to use this feature. Type 1 water quality systems typically have measurements of less than 0.

Minute traces of salts or biological contaminants can result in unfortunate consequences when culturing cells or performing analytical measurements of biological macromolecules. D Standard Specification for Reagent Water. The impact will be different depending on the water type and grade produced resistivity characteristics for d11939-1, will be rapidly impacted as soon as Type I water is be stored. A superscript epsilon e indicates an editorial change since the last revision or reapproval.

If non-ionized dissolved gases are d1193-9 concern for the application considered, the selection of a method to produce water appropriate for the purpose and compliant with the Table 1 speci?