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Keyword:
| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| JJG(EJ)8-1991 |
(With 4Πβ (PPC)-γ standard device for measuring electron capture radioactive nuclide specific activity of test solution method) |
China Metrological
Standards 4Πβ |
 English PDF |
| JJG(EJ)7-1991 |
(The specific activity of test method 4Πβ-γ standard device for measuring radioactivity of the solution) |
China Metrological
Standards 4Πβ |
English PDF |
| JJG(EJ)13-1991 |
(Test Method B specific activity was measured using a radioactive gas proportional counter 4Πβ standard devices) |
China Metrological
Standards 4Πβ |
English PDF |
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