Journal of Research of the National Bureau of Standards, Volumes 91-92National Bureau of Standards, 1986 |
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Page 20
... response factor , should result in a pH increase of +0.017 . The observed change is of the correct sign , but the magnitude per five degrees is somewhat larger than predicted . Two possible sources of explanation for the apparently ...
... response factor , should result in a pH increase of +0.017 . The observed change is of the correct sign , but the magnitude per five degrees is somewhat larger than predicted . Two possible sources of explanation for the apparently ...
Page 24
... response . All of the measured pH values are shown in table 2 , including the buffer standards used by the par- ticipants ( STD 1 and STD 2 ) . The average pH values for measurement trials 1 and 2 for each solution by each participant ...
... response . All of the measured pH values are shown in table 2 , including the buffer standards used by the par- ticipants ( STD 1 and STD 2 ) . The average pH values for measurement trials 1 and 2 for each solution by each participant ...
Page 30
... response of the pH mea- surement system with a second buffer , SRM 186lc / 186llc , potassium dihydrogen phosphate / disodium hydrogen phosphate [ pH ( S ) 6.863 at 25.0 ° C ] or equivalent . Refer to ASTM D1293 for guidance . If the ...
... response of the pH mea- surement system with a second buffer , SRM 186lc / 186llc , potassium dihydrogen phosphate / disodium hydrogen phosphate [ pH ( S ) 6.863 at 25.0 ° C ] or equivalent . Refer to ASTM D1293 for guidance . If the ...
Page 37
... response . Thus they are prone to a large uncertainty . The chloride measurements serve only as an indication of concentration and were not used in the final statisti- cal analysis . This method and its values are presented for ...
... response . Thus they are prone to a large uncertainty . The chloride measurements serve only as an indication of concentration and were not used in the final statisti- cal analysis . This method and its values are presented for ...
Page 40
... response have been satisfied . If the reading for the second buffer is within 0.03 pH units of the prescribed value , record the value and continue . Control Sequence 3 ) Rinse the electrodes thoroughly with distilled water ( ASTM Type ...
... response have been satisfied . If the reading for the second buffer is within 0.03 pH units of the prescribed value , record the value and continue . Control Sequence 3 ) Rinse the electrodes thoroughly with distilled water ( ASTM Type ...
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Page 241 - Monographs — Major contributions to the technical literature on various subjects related to the Bureau's scientific and technical activities. Handbooks — Recommended codes of engineering and industrial practice (including safety codes) developed in cooperation with interested industries, professional organizations, and regulatory bodies. Special Publications — Include proceedings of conferences sponsored by NBS.
Page 263 - Certain commercial equipment, instruments, or materials are identified in this paper in order to adequately specify the experimental procedure. Such identification does not imply recommendation or endorsement by the National...
Page 112 - JOURNAL OF RESEARCH— The Journal of Research of the National Bureau of Standards reports NBS research and development in those disciplines of the physical and engineering sciences in which the Bureau is active. These include physics, chemistry, engineering, mathematics, and computer sciences. Papers cover a broad range of subjects, with major emphasis on measurement methodology, and the basic technology underlying standardization. Also included from time to time are survey articles on topics closely...
Page 345 - Studies or reports which are complete in themselves but restrictive in their treatment of a subject. Analogous to monographs but not so comprehensive in scope or definitive in treatment of the subject area. Often serve as a vehicle for final reports of work performed at NBS under the sponsorship of other
Page 78 - The Bureau's overall goal is to strengthen and advance the Nation's science and technology and facilitate their effective application for public benefit. To this end, the Bureau conducts research and provides...
Page 112 - NBS administers this program as a supplement to the activities of the private sector standardizing organizations. Consumer Information Series — Practical information, based on NBS research and experience, covering areas of interest to the consumer. Easily understandable language and illustrations provide useful background knowledge for shopping in today's technological marketplace.
Page 15 - The metre is the length equal to 1 650 763.73 wavelengths in vacuum of the radiation corresponding to the transition between the levels 2p,0 and 5d5 of the krypton-86 atom.
Page 345 - Bureau conducts research and provides: (1) a basis for the Nation's physical measurement system, (2) scientific and technological services for industry and government, (3) a technical basis for equity in trade, and (4) technical services to promote public safety.
Page 41 - NBS pursuant to the Federal Property and Administrative Services Act of 1949 as amended, Public Law 89-306 (79 Stat. 1127), and as implemented by Executive Order 11717 (38 FR 12315, dated May 11, 1973) and Part 6 of Title 15 CFR (Code of Federal Regulations).
Page 311 - States of a complete and consistent system of physical measurement; coordinates that system with measurement systems of other nations; and furnishes essential services leading to accurate and uniform physical measurements throughout the Nation's scientific community, industry, and commerce.