How To Identify Low Iron Glass?

Identifying low iron glass can be challenging without specific technical knowledge or testing equipment, as its visual appearance may not always distinguish it from standard clear glass. However, there are a few methods that can help in identifying low iron glass:

1. Manufacturer's Specifications: Check the product information provided by the glass manufacturer or supplier. Low iron glass is often labeled and marketed as such, and the product specifications may explicitly state its reduced iron content and high light transmission properties.

2. Visual Inspection: While not foolproof, low iron glass may exhibit a slightly clearer and more colorless appearance compared to standard clear glass. It may have a reduced greenish tint, especially when viewed from the edge. However, visual inspection alone may not be sufficient to conclusively identify low iron glass.

3. UV Light Test: Low iron glass may fluoresce differently under ultraviolet (UV) light compared to standard clear glass due to its reduced iron content. This method requires specialized UV light sources and expertise in glass analysis.

4. Professional Testing: If precise identification is necessary, professional testing by a glass expert or laboratory can provide accurate results. Spectrophotometry and other analytical techniques can be used to measure the iron content and optical properties of the glass.

It's important to note that the most reliable method for identifying low iron glass is to rely on the product information provided by the manufacturer or to seek professional testing if absolute certainty is required.