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Analyses of Natural Gases, 1970.
MISSING :130 pages
This publication contains routine analyses and related source data for 377 natural gas samples from 19 states and two foreign countries. Of this total, 373 samples were collected during calendar year 1970. The remaining four samples were collected during previous years, but releases granting permission to publish the analyses were not received until 1970. All samples were collected as part of a continuous survey of the free world for occurrences of helium in natural gas. This survey has been conducted in the United States by the Bureau of Mines since 1917. In late 1965, the survey was expanded to include foreign gasfields. The analyses published herein were made by mass spectrometer and a special helium analysis apparatus, which are described in Bureau of Mines Bulletins 486 and 576. Twelve previous publications have presented the results of 9,050 gas analyses prior to 1970. The first three, Bulletins 486, 576, and 617, contain analyses and related source data on 5,218 gas samples collected from 1917 through 1960. Nine other publications, which were issued as Information Circulars, supplement the three Bulletins and contain 3,832 analyses of samples collected since 1960. This publication is the 10th publication supplementing the three Bulletins. (Out of print.)
IH; Information Circular;
Page last reviewed: April 12, 2019
Content source: National Institute for Occupational Safety and Health Education and Information Division