Jul 23, 2015 · 500ml capacity reagent bottle made of high quality, amber colored Borosilicate 3.3 glass. Bottle features white, 50ml graduation lines that are marked every 100ml. As per DIN ISO 4796-1 standard. Equipped with an orange, GL 45 screw cap and features a drip free pouring ring for cleaner, safer transfers of liquids and powders.