| 摘要 |
<p>Chemical industry. The head disclosed comprises a body forming an annular skirt (6) provided with means for hermetically mounting the head on the neck (2) of a recipient (3), said body extending from the base (10) of a fitting part (5) traversed by at least one injection and sampling tube (19) prolonged by a plunger tube (22) and by at least one through passage (23) provided on the top surface of the head with a connection (24) for fitting an accessory. Application to a small-volume recipient for chemical analysis.</p> |
