Possibilities for utilization of pulverized-coal ash
โ Scribed by R.H.O.
- Publisher
- Elsevier Science
- Year
- 1939
- Tongue
- English
- Weight
- 112 KB
- Volume
- 227
- Category
- Article
- ISSN
- 0016-0032
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โฆ Synopsis
Radium Protection.--The rapid increase in the use of radium during the last few years, resulting in the acquirement of large amounts of radium by various institutions, has brought with it the need for better safeguards and rules to protect the users from the radiation. The dangers arising from exposure to the radiation from radium are in some cases now well known, in others, still obscure and uncertain. Sufficient experience and data are now available, however-, to show fairly conclusively that with reasonable precautions radium can be handled over a considerable period of years with no apparent harm. On the other hand, serious injury has resulted from relatively short periods of workwith radium where certain precautions were overlooked. Even when proper working conditions and suitable regulations exist, there is still the potential danger of excessive exposure as a result of improper use of safety equipment and violation of good practice. Since the injury does not become apparent immediately, workers may frequently be tempted to neglect routine precautions. The regulations set forth in the National Bureau of Standards Handbook H23 which supersedes HI8 are the result of work done jointly with the Advisory Committee on X-ray and radium protection.
R. H. O.
๐ SIMILAR VOLUMES
solid phase between the components under the experimental conditions investigated. The kinetic parameters associated with the bagasse/petroleum residue mixture involved the sum of bagasse and petroleum residue individual component kinetic parameters. The information obtained can be used to develoo