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How to choose the right pharmaceutical rubber stopper
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. Application
Butyl rubber stopper is widely used in pharmaceutical packaging industry owe to its super airtightness and chemical stability.
a. Powder medicine for injection
b. Infusion
c.Freeze-drying or lyophilization
d.biological agent
e.blood products
2. Principle of choosing
a. According to production workmanship: Lyophilization rubber stopper for freeze-drying sterile powder medicine; For others such as Sterilizing solvent crystallization method, then need to choose injectable rubber stoppers or called antibiotic rubber stoppers. While choose the infusion rubber stopper correspondingly for infusion.
b. According to the production line: For the imported packing line, the moving channel is for the dia. of top part is 18.8mm. I.e 20-A 20-B2.For the previous line produced in China, should choose the dia. of top part is 19.5mm.
c. According to the bottle used. For the molded glass infusion bottle, 32-A for bottle type A and 28-B for bottle type B.
d. According to the compatibility test .
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