This entry covers mixtures of propadiene with 1 to 4% methylacetylene as well as the following mixtures:

+------+----------------------------------------------------------------------+
| Mix- |                        Content, % by volume                          |
| ture +-----------------+---------------+------------------+-----------------+
|      | Methylacetylene | Propane and   | C4-saturated hy- | Permitted tech- |
|      | and propadiene, | propylene,    | drocarbons, not  | nical name for  |
|      | not more than   | not more than | less than        | purposes of     |
|      |                 |               |                  | 5.4.1.1         |
+------+-----------------+---------------+------------------+-----------------+
| P 1  |       63        |       24      |        14        |  "Mixture P 1"  |
+------+-----------------+---------------+------------------+-----------------+
| P 2  |       48        |       50      |         5        |  "Mixture P 2"  |
+------+-----------------+---------------+------------------+-----------------+