Browsing items in: All Collections

(13572 results)

Sort by: Title

Title

Description

Subject

Display Options

Display: 20

100

200

- Thumbnail
- Title
- Subject
- Description
- Collection
- Psychrometric wet elements as a basis for precise physico-chemical measurements
- Convective heat transfer; convective mass transfer; emissivity of water; evaporation coefficient; humidity measurement; monomolecular film; psychrometer; psychrometry; radiative heat transfer; temperature depression; water vapor measurement; wet...
- Under appropriate conditions, psychrometric wet elements of simple design can be highly reproducible in behavior. A temperature depression of 10 K can be reproducible from element to element within 2 mK. The properties of a wet element can be...
- Journal of Research of NIST and Predecessor Publications
- PTR Type Standard Resistor
- This PTR type standard 0.1-ohm resistor was made by Otto Wolff in Berlin. It was calibrated in 1898 at the PTR (Physikalisch-Technische Reichsanstalt). Presumably it was then purchased with others by the Office of Weights and Measures, (precursor...
- NIST Museum Artifacts
- Publications of the National Bureau of Standards, 1901 to June 30, 1947
- NBS-NIST Technical Series Publications
- Publications Taking Us Toward a Metric America
- A Century of Excellence
- Publicity for the pure helium humidifying process for the Declaration of Independence enclosure
- Photographs; History; Metrology; Manuscripts; Conservation and restoration; Preservation and restoration
- Publicity for the pure helium humidifying process for the Declaration of Independence enclosure. E. Carroll Creitz of the National Bureau of Standards (center). Gordon M. Kline of the National Bureau of Standards, Roy W. Wampler of the...
- Historic Images
- Pulp and paper fiber composition standards: reference standards, showing the color reactions of common paper-making fibers and standard fiber mixtures with various stains for use in identification and estimation of fiber composition of paper.
- Journal of Research of NIST and Predecessor Publications
- Pulse packing in magnetic recording wire
- Journal of Research of NIST and Predecessor Publications
- Pulse radiolysis of methane
- Electron scavengers; gas phase; ion-molecule reactions; methane; neutralization; pulse radiolysis
- The pulse radiolysis of methane has been studied in the absence and presence of electron scavengers such as SF6 and CD3I and positive ion scavengers such as i-C4D10 in order to define the role of the intermediates H, C, CH, CH2, CH3, CH+5, and...
- Journal of Research of NIST and Predecessor Publications
- Pulse radiolysis of neopentane in the gas phase
- Electron scavengers; gas phase; ion-molecule reactions; neopentane; neutralization; pulse radiolysis
- The pulse radiolysis of gaseous neopentane has been investigated in the absence and presence of electron scavengers (SF6, CD3I, CCl4). Deuterium labeling experiments show that the stable product molecules can be accounted for by (a) radical...
- Journal of Research of NIST and Predecessor Publications
- Pulsed light system for multiple-cell ultracentrifuge rotor
- Journal of Research of NIST and Predecessor Publications
- Punched Paper Tape from 1968 Radioactive Decay Experiment
- Punched paper tape from a radioactive decay experiment as descibed in the paper ""A Method for Obtaining Large Numbers of Measured Time Intervals in Radioactive Decay"" published in 1968 by Samuel B. Garfinkel and Wilfred B. Mann of the National...
- NIST Museum Artifacts
- Punched-Card Transcriber for Automatic Computers
- NBS-NIST Technical Series Publications
- Pure zinc at normal and elevated temperatures
- Journal of Research of NIST and Predecessor Publications
- Purification and analysis of alkali cyanides
- Journal of Research of NIST and Predecessor Publications
- Purification and properties of 29 paraffin, 4 alkylcyclopentane, 10-alkylcyclohexane, and 8 alkylbenzene hydrocarbons
- Journal of Research of NIST and Predecessor Publications
- Purification and sealing "in vacuum" of National Bureau of Standards standard samples of hydrocarbons
- Journal of Research of NIST and Predecessor Publications
- Purification by automatic gas chromatography
- automatic; chromatography; gas; pump; toluene
- A completely automatic apparatus has been developed for the preparative-scale purification of compounds by gas-liquid chromatography. A clock timer periodically activates a pump that injects a sample into the column. The recording potentiometer on...
- Journal of Research of NIST and Predecessor Publications
- Purification by Fractional Melting
- NBS-NIST Technical Series Publications
- $Purification of gallium by fractional crystallization of the metal$
- Purification of gallium by fractional crystallization of the metal
- Journal of Research of NIST and Predecessor Publications
- Purification of hydrocarbons by crystallization from liquid methane. Isolation of 2-methylheptane from petroleum
- Journal of Research of NIST and Predecessor Publications

Add or remove other collections to your search:

Narrow your search by:

Creator

Date

Format

Subject

Browsing items in: All Collections

QuickView

Layout options:

		Thumbnail with title
		Grid with smaller thumbnails and more detail