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6241. Opacity standards; by Deane B. Judd.

Corporate/Agency Authors:: National Bureau of Standards and Commerce Department
Publisher:: National Bureau of Standards
Date:: [1934.]
SuDoc number:: C 13.22/a:709

6242. Paper. Effect of experimental conditions on measurement of air permeability of paper; by F. T. Carson.

Corporate/Agency Authors:: National Bureau of Standards and Commerce Department
Publisher:: National Bureau of Standards
Date:: [1934.]
SuDoc number:: C 13.22/a:682

6243. Paper. Sensitive instrument for measuring air permeability of paper and other sheet materials [with list of references]; by F. T. Carson.

Corporate/Agency Authors:: National Bureau of Standards and Commerce Department
Publisher:: National Bureau of Standards
Date:: [1934.]
SuDoc number:: C 13.22/a:681

6244. Paper. Sources of error in measuring opacity of paper by contrast-ratio method; by Deane B. Judd.

Corporate/Agency Authors:: National Bureau of Standards and Federal Employment Stabilization Office
Publisher:: National Bureau of Standards
Date:: [1934.]
SuDoc number:: C 13.22/a:660

6245. Paraffin, hydrocarbons. Heats of combustion and of formation of normal paraffin hydrocarbons in gaseous state, and energies of their atomic linkages [with list of references]; by Frederick D. Rossini.

Corporate/Agency Authors:: National Bureau of Standards and Commerce Department
Publisher:: National Bureau of Standards
Date:: [1934.]
SuDoc number:: C 13.22/a:692

6246. Platinum. Methods for separation of platinum, palladium, rhodium, and iridium from one another and for their gravimetric determination; by Raleigh Gilchrist.

Corporate/Agency Authors:: National Bureau of Standards and Federal Employment Stabilization Office
Publisher:: National Bureau of Standards
Date:: [1934.]
SuDoc number:: C 13.22/a:655

6247. Preece test (copper-sulphate dip) for zinc coatings [with list of selected references]; by E. C. Groesbeck and H. H. Walkup.

Corporate/Agency Authors:: National Bureau of Standards and Agriculture Department
Publisher:: National Bureau of Standards
Date:: [1934.]
SuDoc number:: C 13.22/a:688

6248. Propeller-vibration indicator; by Hugh L. Dryden and L. B. Tuekerman.

Corporate/Agency Authors:: National Bureau of Standards and Commerce Department
Publisher:: National Bureau of Standards
Date:: [1934.]
SuDoc number:: C 13.22/a:678

6249. Psychrometric charts; by Donald B. Brooks.

Corporate/Agency Authors:: National Bureau of Standards and Commerce Department
Publisher:: National Bureau of Standards
Date:: Aug. 25, 1933, [reprint] 1934
SuDoc number:: C 13.10:143/1-2

6250. Radio field intensity records. Analysis of continuous records of field intensity at broadcast frequencies; by Kenneth A. Norton, Samuel S. Kirby, and Gordon H. Lester.

Corporate/Agency Authors:: National Bureau of Standards and Commerce Department
Publisher:: National Bureau of Standards
Date:: [1934.]
SuDoc number:: C 13.22/a:752

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