Differential Pressure Method Gas Transmission Tester N500A 2.0 Introduction The N500A 2.0 Gas Permeability Tester is a high-precision laboratory tester integrating mechanics, electronics, and software. It is suitable for testing the gas barrier properties of plastic films, composite films, sheets, metal foils, and packaging containers such as bottles, bags, cans, and boxes made of various materials, including plastic, rubber, and paper. Test principle The N500A 2.0 Gas Permeability Tester is designed based on the principle of the pressure differential method. A processed sample is placed between the upper and lower chambers. A vacuum pump is used to evacuate the entire gas system. Then, a test gas at one atmosphere of Add.: No. 3, Linjiang Road, Huangpu District, Guangzhou, Guangdong Province, China

pressure is introduced into the upper chamber to create a constant pressure differential between the upper and lower chambers. Under the action of the pressure gradient, the gas permeates through the film from the upper chamber to the lower chamber. The system calculates the permeation rate of the test sample based on the pressure change in the lower chamber, as shown in the figure below: Standard Chinese Pharmacopoeia 2025 Edition, "4007 Determination of Gas Permeability of Pharmaceutical Packaging Materials", GB/T 1038.1, ISO 2556, ISO 15105-1, ASTM D1434, JIS K7126-1, YBB 00082003 Add.: No....

Packaging Testing Instruments • Patented core technology ensures efficient and accurate testing. Imported high-precision vacuum sensors integrate a silicon piezoresistive chip with temperature compensation technology, achieving a full-scale drift of only 0.01% of reading/°C. This allows continuous measurement over the full range, avoiding blind spots caused by pressure jumps during vacuum pumping. Constant temperature control reduces thermal drift, resulting in a repeatability of <±0.2% FS. Patented automatic differential pressure maintenance technology automatically maintains a pressure differential...

Original high-reliability vacuum pumps achieve a maximum pressure of 0.05 Pa, ensuring high vacuum efficiency and low noise. A brand-new pneumatic control system and automatic clamps lock the specimen with one click, offering convenient and labor-saving operation and superior sealing performance. Meets testing needs for high throughput, wide range, and high applicability With a wide testing range and a lower limit as low as 0.01 cm³/(m²·24 h·0.1 MPa), it meets the testing needs of various high, medium, and low barrier materials. With the addition of adapter accessories, it can measure the gas...

Professional calibration services ensure accurate and reliable data Our company holds the "National Reference Material Grading Certificate" for gas permeability, approved and issued by the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China. The reference material numbers are GBW(E) 130541 / GBW(E) 130542. We use national reference materials for instrument calibration and verification, ensuring the accuracy, compatibility, and authority of test data. Intelligent Laboratory IoT Platform Instruments can be connected to the IoT platform for...

Sanitary napkins, pads and other hygiene products Wine bottles, Coke bottles, peanut oil drums, Tetra Pak packaging, vacuum packaging bags, three-piece cans, cosmetic packaging, toothpaste tubes, jelly cups, yogurt cups, etc. Plastic, rubber, paper, paper-plastic composite, glass, metal bottles Gas transmission rate test of bags, cans, boxes Oxygen, carbon dioxide, nitrogen, air, helium, etc. Factory configuration Standard Add.: No. 3, Linjiang Road, Huangpu District, Guangzhou, Guangdong Province, China Tel: 020-8615 3789, 8615 3790 Web: www.gbpitester.com

other gases as needed; 6. Desiccator (all samples need to be dehydrated and degassed for 24 hours) Note: GBPI has always been committed to the innovation and improvement of product performance and function. For this reason, product technical specifications and appearance will also be changed accordingly. The above situation will not be notified. GBPI reserves the right of modification and final interpretation. Add.: No. 3, Linjiang Road, Huangpu District, Guangzhou, Guangdong Province, China

GBPI (Guangzhou Biaoji Packaging Equipment Co., Ltd.) was established in 2002 and is located in Guangzhou Economic Development Zone. It is an enterprise integrating R&D, production, sales of packaging testing instruments, packaging equipment, modified atmosphere refrigerator and other products, and providing third-party testing and reference material calibration services. It is committed to providing comprehensive, professional, high-quality products and technical services for the packaging, food, medicine, testing and other industries. Write industry standards with quality and become a leader...