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Z512222

Sigma-Aldrich

Serrated natural rubber septa

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

Synonym(s):

Natural Rubber Seal, Rubber Septa

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About This Item

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

material

red 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.

Application

Serrated natural rubber septa have been used to equip the flask for maintaining an inert atmosphere inside the flask.

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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