 ... 0.1 millicuries of radium, or polonium, or that amount of strontium 89, strontium 90, or barium 140 which disintegrates at a rate of more than 5 million atoms per second; or that amount of any other radioactive substance which disintegrates at a rate...  NBS Handbook - Página 281949Vista completa - Acerca de este libro
 | 1957 - 1190 páginas
...other radioactive substance which disintegrates at a rate of more than 50 million atoms per second. (3) The package must be such that no significant alpha,...must be less than 10 milliroentgens for 24 hours. (b) Manufactured articles other than liquids, such as instrument or clock dials or electronic tubes... | |
 | 1964 - 900 páginas
...radioactive substance which disintegrates at a rate of more than 60 million atoms per second. (3 ) The package must be such that no significant alpha,...of the package must be less than 10 milliroentgens per 24 hours. (b) Manufactured articles other than liquids, such as instrument or clock dials or electronic... | |
 | 1960 - 1252 páginas
...other radioactive substance which disintegrates at a rate of more than 50 million atoms per second. (3i The package must be such that no significant alpha,...of the package must be less than 10 milliroentgens per 24 hours. (b) Manufactured articles other than liquids, such as instrument or clock dials or electronic... | |
 | 1964 - 1042 páginas
...other radioactive substance which disintegrates at a rate of more than 50 million atoms per second. (3) The package must be such that no significant alpha,...of the package must be less than 10 milliroentgens per 24 hours. (b) Manufactured articles other than liquids, such as instrument or clock dials or electronic... | |
 | 1965 - 928 páginas
...other radioactive substance which disintegrates at a rate of more than 60 million atoms per second. (3) The package must be such that no significant alpha,...at any surface of the package must be less than 10 m ill i roentgens per 24 hours. (b) Manufactured articles other than liquids, such as instrument or... | |
 | National Committee on Radiation Protection (U.S.) - 1949 - 44 páginas
...per second of any other substance. 25 3. The package must be such that no significant alpha or beta radiation is emitted from the exterior of the package,...radiation at any surface of the package must be less than the equivalent of 10 milliroentgens of radium gamma radiation filtered through one-half inch of lead... | |
 | 1968 - 822 páginas
...radioactive materials must not emit from its exterior any significant alpha, beta, or neutron radiations and the gamma radiation at any surface of the package...must be less than 10 milliroentgens for 24 hours. The package must not contain more than 0.1 millicuries of radium, or polonium, or that amount of strontium... | |
 | 1973 - 588 páginas
...radioactive materials must not emit from its exterior any significant alpha, beta, or neutron radiations. The gamma radiation at any surface of the package must be less than 10 milliroentgens for 24 hours. The package must not contain more than 0.1 millicuries of radium, or §124.2 § 124.3 polonium, or... | |
 | U.S. Atomic Energy Commission - 1955 - 80 páginas
...other radioactive substance which disintegrates at a rate of more than 50 million atoms per second. (e) The package must be such that no significant alpha,...emitted from the exterior of the package and (/) The design and preparation of the package of radioactive material must be such that there will be no significant... | |
 | U.S. Atomic Energy Commission - 1955 - 66 páginas
...millicuries; and that which disintegrates at the rate of 50 million atoms per second is 1.35 millicuries. 3) The package must be such that no significant alpha,...radiation is emitted from the exterior of the package and *Revised May 3, 1955. the gamma radiation at any surface of the package must be less 10 milliroentgens... | |
| |
