1 Brands: Tums, Caltrate, and most other brands.  Absorption: Calcium carbonate is alkaline based. It requires extra stomach acid for better absorption, so it is best taken right after meals or with a glass of acidic juice such as orange juice.
Tempered glass is one of two kinds of safety glass regularly used in applications in which standard glass could pose a potential danger. Tempered glass is four to five times stronger than standard glass and does not break into sharp shards when it fails. Tempered glass is manufactured through a process of extreme heating and rapid cooling, making it harder than normal glass.
Monolithic glass is produced using either the annealed, heat-treated or tempered glass float method. 2. Laminated Glass  Laminated glass is constructed by combining two panes of glass fused together with a middle layer of Polyvinyl Butylenes Film (PVB). PVB acts like a bonding agent to hold broken glass together.n etching label is normally on the corner of most tempered glass. This is to ensure that the glass is fully tempered. Types of Glass Construction Basically, there are 3 types of glass construction: 1. Monolithic Glass  Monolithic glass is the most basic of glass forms.