DIN 7079 Standard for Fused-Glass Sight Glasses
Metaglas® sight glasses meet the DIN 7079 standard for fused-glass sight glasses in metal frames, which means our products meet specifications regarding fusion, thermal properties, minimal bubbles, strength, and chemical resistance. Lab tests show that some competing products do not meet this high standard.

DIN 7080 Standard for Glass Quality
Metaglas sight glasses use glass that meets the DIN 7080 standard, which means our glass has passed tests for material strength, shock endurance, chemical resistance and compression. Because competing products are made of soda lime glass, they do not meet DIN 7080.

USP Type I Standard for Pharmaceutical Use
Metaglas products meet the standard for USP Type I glass, which is the glass most resistant to heat and chemical corrosion. This means that our products have passed test procedures defined by USP29-661. USP standards require the use of Type I borosilicate glass for many applications. Not only do competing products fail to meet this important standard, some do not qualify as Type II or Type III; rather they are non-parenteral, which means they should not be used in with drugs for injection or applications where chemical durability and heat shock are factors. Before you buy a competing product, see the results of this test by an independent lab.

ASME BPE-2005 Standard for Crevices
Metaglas fused sight glasses meet ASME BPE standards which require the seal point to be free of cracks, crevices and pits (SD-4.7.6 c). An independent lab test showed a leading competitor’s sight glasses do not meet this important standard.

ASTM E438 Standard
This standard applies to the quality of the glass. The glass used in our Metaglas sight glasses complies with ASTM E438, the Standard Specification for Glasses in Laboratory Apparatus.

Documentation Guarantee: L.J. Star will always provide third-party documentation of standards compliance and product performance claims.