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Recommended specification for linseed oil, raw, refined and boiled
Oct., 1919.1
U.
S. RVRE.~V OF STANDARDS
will be produced by a pipe, continued by the Winchester coijperated in the investigation has been installed. MEASUREMENTS
OF WAVE KRYPTON
NOTES.
553
For this reason the work is being Repeating Arms Company who and at whose plant the apparatus
LENGTHS IN THE AND XENON.”
SPECTRA
OF
By Paul W. M,errill. [ABSTRACT.]
THIS paper. records photographic measurements of wave lengths in the spectra of krypton and xenon, principally in the red and infra-red. In krypton 37 new lines were measured between 6576 A and 8928 A, in xenon 52 lines between 6318 A and 9162 A. In this region there are numerous strong lines which are probably among the most important in the spectra of these Nctable among these are xenon lines at 8231 and elements. 8280. These and other lines may be of value as wave-length standards in the infra-red. Attention is called to a probable analogy between the spectra of the rare gases neon, argon, krypton, and xenon which this investigation has brought to light.
RECOMMENDED
SPECIFICATION REFINED AND
FOR LINSEED BOILED.”
OIL,
RAW,
[ABSTRACT.]
PREPARED and recommended by the U. S. Interdepartmental Committee on Standardizing Paint Specifications, April 16, 1919. This Committee was appointed at the suggestion of the Secretary of Commerce and consisted of representatives of the War, Interior, Post Office, Treasury, and ComNavy, Agriculture, merce Departments, the Railroad Administration, the Panama Canal, and the War Service Committee of the Paint Manufacturers’ Association of the United States. The Committee submitted a preliminary draft of this specification to more than 300 I1Scientific Paper No. 345.
I1Circular 82. VOL.
188, ?\‘o.
11-16--qo
554
L_?. S. BUREAU
OF STANDARDS
NOTES.
[J. I;. I.
representatives of the paint and varnish industries, including all of the large manufacturers of linseed oil, and gave careful consideration to the large number of replies received in time.
OXYGEN CONTENT BY THE LEDEBUR METHOD BESSEMER STEELS DEOXIDIZED IN VARIOUS By J. R
Cain and Earl
OF ACID WAYS.‘”
Pettijohn.
[ABSTRACT.]
IT IS shown that the Ledebur method for determining oxygen in steels indicates no marked difference in oxygen contents of steels practically identical as to chemical composition and heat treatment, but made by different deoxidation treatments. Some differences in physical properties of such steels are shown.
THE BEHAVIOR OF WROUGHT POSED TO CORROSION, WHILE By P. D. Merica
MANGANESE BRONZE EXUNDER TENSILE STRESS.”
and R. W. Woodward.
[ABSTRACT.]
SPECIMENS of wrought manganese bronze rods were exposed in special steel test frames to corrosion in water and moist air while at the same time under tensile stress with the object of determining the maximum safe stresses for this material under these conditions. While the period of exposure was only two years and the initial condition of the best bars not normal in that anneal, the initial stresses had been removed by a low temperature the results of the tests are capable of some general interpretations. None of the test bars fractured within this period under stresses below the proportional limit, and four of the bars withstood corrosion during this period under stresses which produced slight yielding and permanent set when first applied. Fracture did not occur under stresses less than 35,000 pounds per square inch. U Scientific Paper No. 346. ” Technologic Paper No. 135.
U.
S. RVRE.~V OF STANDARDS
will be produced by a pipe, continued by the Winchester coijperated in the investigation has been installed. MEASUREMENTS
OF WAVE KRYPTON
NOTES.
553
For this reason the work is being Repeating Arms Company who and at whose plant the apparatus
LENGTHS IN THE AND XENON.”
SPECTRA
OF
By Paul W. M,errill. [ABSTRACT.]
THIS paper. records photographic measurements of wave lengths in the spectra of krypton and xenon, principally in the red and infra-red. In krypton 37 new lines were measured between 6576 A and 8928 A, in xenon 52 lines between 6318 A and 9162 A. In this region there are numerous strong lines which are probably among the most important in the spectra of these Nctable among these are xenon lines at 8231 and elements. 8280. These and other lines may be of value as wave-length standards in the infra-red. Attention is called to a probable analogy between the spectra of the rare gases neon, argon, krypton, and xenon which this investigation has brought to light.
RECOMMENDED
SPECIFICATION REFINED AND
FOR LINSEED BOILED.”
OIL,
RAW,
[ABSTRACT.]
PREPARED and recommended by the U. S. Interdepartmental Committee on Standardizing Paint Specifications, April 16, 1919. This Committee was appointed at the suggestion of the Secretary of Commerce and consisted of representatives of the War, Interior, Post Office, Treasury, and ComNavy, Agriculture, merce Departments, the Railroad Administration, the Panama Canal, and the War Service Committee of the Paint Manufacturers’ Association of the United States. The Committee submitted a preliminary draft of this specification to more than 300 I1Scientific Paper No. 345.
I1Circular 82. VOL.
188, ?\‘o.
11-16--qo
554
L_?. S. BUREAU
OF STANDARDS
NOTES.
[J. I;. I.
representatives of the paint and varnish industries, including all of the large manufacturers of linseed oil, and gave careful consideration to the large number of replies received in time.
OXYGEN CONTENT BY THE LEDEBUR METHOD BESSEMER STEELS DEOXIDIZED IN VARIOUS By J. R
Cain and Earl
OF ACID WAYS.‘”
Pettijohn.
[ABSTRACT.]
IT IS shown that the Ledebur method for determining oxygen in steels indicates no marked difference in oxygen contents of steels practically identical as to chemical composition and heat treatment, but made by different deoxidation treatments. Some differences in physical properties of such steels are shown.
THE BEHAVIOR OF WROUGHT POSED TO CORROSION, WHILE By P. D. Merica
MANGANESE BRONZE EXUNDER TENSILE STRESS.”
and R. W. Woodward.
[ABSTRACT.]
SPECIMENS of wrought manganese bronze rods were exposed in special steel test frames to corrosion in water and moist air while at the same time under tensile stress with the object of determining the maximum safe stresses for this material under these conditions. While the period of exposure was only two years and the initial condition of the best bars not normal in that anneal, the initial stresses had been removed by a low temperature the results of the tests are capable of some general interpretations. None of the test bars fractured within this period under stresses below the proportional limit, and four of the bars withstood corrosion during this period under stresses which produced slight yielding and permanent set when first applied. Fracture did not occur under stresses less than 35,000 pounds per square inch. U Scientific Paper No. 346. ” Technologic Paper No. 135.