The wall thickness deviation of medicinal borosilicate glass tube refers to the difference between the maximum and minimum thickness of the same section of the borosilicate glass tube, also known as the thickness to thickness ratio of the same section of the borosilicate glass tube. In the YBB00012005-1-2015 "Pharmaceutical High Borosilicate Glass Tube" standard, detailed provisions are made:

Wall thickness deviation and wall thickness deviation: Use a thickness gauge with an accuracy of 0.01mm to perform rotational measurement on the same section. Wall thickness deviation refers to the difference between the thickness and thinness of the same section of the glass tube. The wall thickness deviation and wall thickness deviation should comply with the specifications in the table.

Medicinal borosilicate glass tube wall thickness deviation tester

The wall thickness deviation index of medicinal high borosilicate glass tubes can be detected using the CHY-B wall thickness gauge produced by Jinan Sanquan Zhongshi Experimental Instrument Co., Ltd. The detailed experimental method and detection equipment are introduced as follows:

Testing equipment: The wall thickness gauge CHY-B manufactured by Jinan Sanquan Zhongshi Experimental Instrument Co., Ltd. has an experimental accuracy of 0.001mm, meets the requirements of the new GMP, has a wide experimental range, and is easy to operate. The instrument has an exquisite and compact appearance, making it easy to store and place, saving laboratory space. Suitable for measuring the thickness of ampoules, penicillin bottles, oral liquid bottles, infusion bottles, beer bottles, plastic bottles and other bottle bottoms and walls in industries such as food, medicine, cosmetics, etc.

Testing process: The digital glass bottle wall thickness gauge is fixed with a digital dial gauge fixture, aligning the measuring head of the dial gauge with the curved measuring rod measuring head. The power of the digital dial gauge is turned on, and the measuring head of the dial gauge is in contact with the measuring rod measuring head and compressed by about 0.50-0.80. Then, press the reset button to reset, insert the tested bottle between the measuring head and measuring rod of the dial gauge, and gently rotate and move the glass bottle up and down. At this time, the data on the dial gauge is the thickness of the glass bottle wall at different positions.

The significance of testing: Controlled bottles play an important role in the field of pharmaceutical packaging materials. Controlled bottles can effectively protect the quality of drugs during a long warranty period, and their key performance lies in having good mechanical properties that can resist impacts during transportation and storage, ensuring packaging integrity. The deviation of the wall thickness of medicinal borosilicate glass tubes is an important indicator reflecting the uniformity of the thickness of medicinal borosilicate glass tubes. Therefore, in order to ensure the safety of drug packaging, it is necessary to use professional laboratory instruments for testing.

Article source: Jinan Sanquan Zhongshi Experimental Instrument Co., Ltd., a manufacturer of physical testing instruments for medicinal high borosilicate glass tubes