DURAN®, borosilicate glass 3.3, amber, without or with pouring ring and screw cap.

• Very good chemical resistance, high temperature resistance

• Minimal thermal expansion, giving relatively high resistance to temperature changes
• Purely external application of the colour ensures unchanged DURAN® properties on the interior
• Glass Type I according to USP, EP and JP
• Amber glass meets USP 671 and Eur. Ph. 3.2.1. for protection against UV light

  10 ml bottles do not conform with ISO 4796-1 standard; specially shaped glass edge for improved pouring out (so that an additional plastic pouring ring is not required)

• 20 ml bottles are made with specially shaped glass edge for improved pouring out (so that an additional plastic pouring ring is not required)

Round, with graduation and DIN thread.

With printed Retrace Code (batch identification).

With specially shaped glass rim for improved pouring; no additional pouring ring is needed.

Ring-shaped reinforcement on the bottle shoulder makes the filling line of the nominal volume visible.