There are 4 types of glass in the new standard, including 2 kinds of borosilicate glass, including 3. 3 Borosilicate Glass [α= (3 3±0.1) X10 (-6) K (-1)] and 5.0 Neutral Glass [α= (4~5) x10 (-6) K (-1)], low borosilicate glass [α= (6 2~7.5) X10 (-6) K (-1)] 1 species,Sodium-Calcium Glass [α= (7 6~9.0) X10 (-6) K (-1)]l species, so there are 4 types of glass by material. Because the sodium-calcium glass in the actual production and application includes a large number of neutral surface treatment of one, so according to the product is divided into 5 kinds. The above 4 types of glass and 5 kinds of glass products include the international standard, the United States Pharmacopoeia and China's unique medicinal glass bottle types. In addition, the standard coverage of the 8 categories of products, only the Ampoule formulated the "Borosilicate glass ampoule" and "low boron silicon glass ampoule" 2 standards, in the standard of borosilicate glass, there is only one α= (4~5) x10 (-6) K (-1) 5.0 Borosilicate Glass without α= (3 3±0.1) X10 ( -6 K (-1) of 3.3 Borosilicate glass, mainly because there is no such product internationally, and 3.3 Borosilicate Glass has a higher softening point, which makes it more difficult to seal the ampoule. In fact, the international standard has only a 5.0 borosilicate glass bottle, not 3. 3 borosilicate glass ampoule and sodium calcium glass ampoule. About China's unique low boron-silicon glass ampoule, in the current domestic due to a variety of reasons to make 5. 0 Borosilicate Glass Ampoule has not yet formed a specific period of large-scale stable production, can only be used as a transitional product, and ultimately to limit the use of low boron silicate glass ampoules, development 5. 0 boron-Silicon glass ampoule, as soon as possible with international standards and products in full conformity.
Glass Material type of bottle
- Apr 19, 2018 -
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