Product Name: Boiling flask 100ml Round bottom flask
The standard interface glass instruments produced by our factory are manufactured according to internationally accepted technical standards.Standard interface instruments are stamped on the top or bottom of the mouthpiece to indicate the specification mark. Commonly used are10,12,14,16,19,24,29,34,40 and so on. Usually printed on two standard digital interfaces, such as: 24 / 29,24 represents a ground large end diameter of 24mm , 29 denotes a ground height of the matte surface was29mm .
The international standard port is based on the length, short, short and long standard of the matte surface. The US standard generally uses short marks below 19# , and the long standard is used above 24# . China and the European standards use the same. Take the 24# port as an example, the short standard is 24/25 , the winning bid is 24/29 , and the long standard is 24/40 . Our factory’s conventional products generally use the winning bid, and can be customized according to the requirements of other standard products. The standard port series products are all made of high quality 3.3 borosilicate glass.
This product is a ball-grinding joint with a 35/20 port and a bottle connected to the rotary evaporator.
Ingredients: High borosilicate 3.3