The European manufacturer of Pyrex, Arc International, uses borosilicate glass in its Pyrex glass kitchen products; however, the U . S . manufacturer of Pyrex kitchenware uses tempered soda-lime glass.
42.
Density adjustments at different temperatures, corrections for soda-lime glass expansion and contraction and meniscus corrections for opaque oils are detailed in the Petroleum Measurement Tables, details of usage specified in ASTM D1250.
43.
Thus Pyrex can refer to either soda-lime glass or borosilicate glass when discussing kitchen glassware, while Pyrex, Bomex, Duran, TGI and Simax all refer to borosilicate glass when discussing laboratory glassware.
44.
The lids for pieces in the Visions, Corning Ware Beige / Sandstone and Pyroflam Amber lines are made of tempered soda-lime glass while the lids for the white collection are made of borosilicate glass.
45.
The proportions differ from the traditional soda-lime glasses in low amount of silica ( less than 60 mol . % ), high amount of sodium and calcium, and high calcium / phosphorus ratio.
46.
A clear borosilicate glass Pyrex measuring cup produced by Corning ( right ) and a clear tempered Pyrex soda-lime glass measuring cup produced by World Kitchen ( left, differentiated by its different logo and bluish tint)
47.
For example, pottery states that " earthenwares are normally fired at temperatures in the range of about 1000 to 1200 degrees C ", and soda-lime glass specifies its melting point as " about 1000�C ".
48.
As a representative of World Kitchen I am asking for an experienced Wiki-editor s help to correct a number of errors, inaccuracies and incomplete information on the entries for Pyrex, soda-lime glass, and borosilicate glass.
49.
Ordinary A-glass ( " A " for " alkali-lime " ) or soda lime glass, crushed and ready to be remelted, as so-called cullet glass, was the first type of glass used for fiberglass.
50.
Technically, it is a silica-soda-lime glass production characterized by thick glass-blown vessels relatively sober in decoration, avoiding plain colours in favour of transparency and with vessels worked in one piece without over-elaborate amendments.
