| # | Standard Interpretations |
|---|---|
| 1 | - 1910.111(b)(12)(ii) - Clarification of the requirement for an attendant during transfer of anhydrous ammonia. |
| 2 | - 1910.111(b)(7)(iv) - Back-welding of threaded connections in anhydrous ammonia service. |
| 3 | - 1910.111(b) - Requirements relative to the use of anhydrous ammonia in Diazo Reproduction machines. |
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