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Key Documents

Z512230

Sigma-Aldrich

Serrated natural rubber septa

white rubber, bottom O.D. 28 mm, fits neck I.D., 25.5 mm, ST/NS: 29/42

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About This Item

UNSPSC Code:
41121800
eCl@ss:
32119211
NACRES:
NB.35

material

white rubber

usage

ST/NS: 29/42

feature

fits neck I.D. 25.5 mm

packaging

package of 100

bottom O.D.

28 mm

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General description

Closure has a turnover flange molded to grip outside of container neck, promoting a double seal in conjunction with annular serrations on a hollow plug. Annular serrations depress themselves against the inside wall of the bottle neck, making each serration a suction sealing point.
Note: For extra security when using large bore transfer needles, fasten septum to bottle or flask opening with a wrap-it tie. See ties and accessory tool listings on next page.

Certificates of Analysis (COA)

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