Want this question answered?
the thickness and purity of the glass will determine the rate at which it vibrates. fine crystal usually has resonant frequencies that are easy to hear.
by using spherometer
Cylinder-shaped, calibrated glass containers that fit into centrifuge slots for the analysis and separation of various materials.
There are a few different tricks that glass collectors use to determine the age of glass. One way is by using an ultra violet light which shows old lead glass as a blue-purple colors and new soda glass as a green-yellow color. Other ways are pontil marks, thickness, even/lopsided, and style.
By using travelling microscope and formula n=h/h'
a new crack terminates at an existing crack, therefore it is possible to determine which crack happened first second third etc. in a piece of glass
T. B. Pierce has written: 'An examination of possible uses of nuclear techniques in the glass industry' -- subject(s): Analysis, Glass, Glass manufacture, Radiochemical analysis
no aw la2a
the thickness and purity of the glass will determine the rate at which it vibrates. fine crystal usually has resonant frequencies that are easy to hear.
It is not used in organic analysis due to the imparting of yellow color to the flame by silicates in the glass rod.
Carter M. Glass has written: 'Linear systems, with applications and discrete analysis' -- subject(s): Data processing, Electric engineering, Linear systems, Mathematics, System analysis
Harry H. Holscher has written: 'Hollow and specialty glass' -- subject(s): Glass manufacture, Glassware, History 'Simplified statistical analysis' -- subject(s): Analysis of variance, Experimental design
Get a magnifying glass
Density
by using spherometer
The plastic flask is needed for trace analysis on analytes at ppb levels that might be lost by adsorption on the glass surface.
To determine if glass is tempered, look for a manufacturer's stamp or mark indicating it is tempered. Tempered glass is also stronger and shatters into small, blunt pieces when broken. If you can't find any markings, consult with a professional or use a polarized lens filter to check for any stress patterns, which are typical in tempered glass.