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  • What are the different types of heat sealing testers
    What are the different types of heat sealing testers 2020-09-10
    The heat sealing testser is a testing instrument researched and produced for packaging heat seal strength testing. The heat sealing testser is mainly used to measure the heat sealing temperature and heat sealing time of plastic film substrates, flexible packaging composite films, coated paper and other heat sealing composite films , Heat sealing pressure and other parameters. Because the equipment is a precision laboratory instrument, it is generally used for laboratory testing applications in packaging material factories, food, medicine, quality inspection institutes, research institutions and other enterprises and institutions. Among the many items of product packaging inspection , the heat-sealing strength inspection of the packaging is an important analysis index to evaluate the sealing strength of the heat-sealed parts. This requires heat sealing tests on the products. If the heat-sealing strength is insufficient, it will cause the package to crack at the heat-sealed place, causing problems such as food and medicine leakage and contamination. Equipment classification According to the design of the heat sealing head, the heat sealing instrument can be divided into a single head heat sealing instrument and a double five-point heat sealing instrument Single head heat sealing instrument Five-point heat sealer The single-head heat-sealing instrument can conduct heat-sealing tests on flexible packaging materials at a set temperature, pressure, and time, so as to quickly and easily find the best heat-sealing process parameters of the material. As the name implies, the equipment head is designed as a single head, the lower head accurately controls the temperature, and can be controlled by the experiment temperature. The temperature control adopts P.I.D temperature control technology, which is accurate in temperature control and fast in temperature rise. The five-point heat sealing instrument can measure the heat sealing parameters of plastic film substrates, flexible packaging composite films, coated paper and other heat sealing composite films at a certain heat sealing speed, heat sealing pressure and five heat sealing temperatures. The melting point, thermal stability, fluidity and thickness of the heat-sealing materials will show different heat-sealing performance, and the sealing process parameters may vary greatly. Using this equipment can accurately and efficiently obtain the best heat sealing performance parameters. The equipment adopts the design of independent temperature control of the upper and lower heads, and the unique five independent temperature control designs of the upper head, which facilitates the high standards of temperature and test efficiency for customers during the test.       The heat-sealing strength tester with ASTM F2029 developed and produced by GBPI is mainly suitable for the determination of heat-sealing temperature, heat-sealing time and heat-sealing pressure of materials such as films, comp...
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  • What is a leak tester
    What is a leak tester 2020-08-11
    The Leak tester is designed and manufactured in accordance with the relevant regulations of GB/T15171 soft package sealing performance test method. It is suitable for the sealing test of soft package in food, pharmaceutical, daily chemical and other industries. Through the test, it can effectively compare and evaluate the sealing technology and The sealing performance provides a scientific basis for determining the relevant technical requirements. It can also carry out the sealing performance test of the specimen after the drop and pressure test. Key words: seal tester, leak testing machines ,  leak tester, bag leak tester,leak detection equipment . Equipment use: The Leak tester is suitable for the sealing test of packaging parts in food, pharmaceutical, daily chemical and other industries. The test can effectively compare and evaluate the sealing technology and sealing performance of the flexible package, Provide a scientific basis for determining relevant technical requirements. It can also analyze the quality of packaging and sealing. Equipment classification: According to different testing principles of the equipment, the leak tester can be divided into the following three types: 1. Vacuum attenuation method equipment: soft packaging, semi-rigid packaging, hard packaging tightness test 2. Ultrasonic principle equipment: quality analysis of soft bag sealing 3. High-voltage discharge method equipment: filling liquid packaging The Leak tester produced by Guangzhou GBPI complies with the executive standard GB/T 15171-1994, ASTM D3078-2002 (2013) It has the advantages of using compressed air, pneumatic drive; automatic and manual operation; LCD display test parameters.
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  •  GBPI Gas permeability tester - complete solutions for your laboratory requirements
    GBPI Gas permeability tester - complete solutions for your laboratory requirements 2020-07-31
    The gas permeability tester is a testing instrument used for the determination of gas permeability, solubility coefficient, diffusion coefficient and permeability coefficient. Application field Gas permeability  tester is widely used in food, medical packaging and other industries. Professionally suitable for the gas permeability, solubility coefficient, diffusion coefficient, permeability coefficient of plastic film, composite film, high barrier material, sheet, metal foil, rubber, tire air tightness, permeable membrane and other materials at various temperatures The determination. Detection significance The gas penetration test is a barrier performance test. Barrier performance testing includes two types of gas (oxygen, nitrogen, carbon dioxide, etc.) and water vapor transmission rate tests. Barrier performance is one of the important factors affecting the shelf life of products, and it is also an important reference for manufacturers to analyze the shelf life of products. This test can analyze and solve quality problems such as oxidation deterioration and damp mildew caused by oxygen or water vapor sensitivity. Test principle A test gas with a certain pressure is applied on one side of the test piece, and the other side is evacuated to form a pressure difference on the test piece, so that the test gas diffuses in the test piece and slowly penetrates, and the pressure on the decompression side (vacuum side) increases, and the pressure is The time changes linearly, and the gas permeability coefficient and gas permeability are calculated by the calculation formula with the slope of the obtained straight line. GBPI differential pressure method gas permeability tester is manufactured in strict accordance with the following Chinese standards, American standards, German standards and other domestic and foreign standards. This instrument uses national standard materials for calibration, and at the same time meets the temperature, pressure and other parameter calibration requirements. It has the advantages of accurate and reliable test data, wide test samples, higher test efficiency and intelligent operation. GBPI is a professional manufacturer of packaging testing instruments such as oxygen transmission rate tester, gas transmission rate tester, water vapor transmission rate tester, etc. GBPI Packaging Testing - complete solutions for your laboratory requirements
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  •  GBPI Face Mask Air Flow Resistance and Differential Pressure Tester
    GBPI Face Mask Air Flow Resistance and Differential Pressure Tester 2020-07-08
    Application Medical mask testing Textile material testing Laboratory related tests Standard EN 14683 Functional advantages Built-in touch screen and micro printer High-precision differential pressure sensor, digitally displays the differential pressure across the sample Manual control of air flow and time Pressure sensor, gas quality controller can be calibrated and measured Theoretical method The output of the air flow is set by a gas flow meter, the air flow passes through a certain area of the test sample, the current pressure is detected by a pressure sensor, and the pressure difference is calculated. Technical index Item Technical Parameter Pressure Sensor Range 0~500Pa Pressure Sensor Accuracy ±0.5% F.S Air Flow Rrange 1 ~ 10L/min(Standard 8L/min) Air Flow Accuracy ±1.0% F.S Gas Source Compressed Air Air Pressure ≥0.3MPa Dimensions 350mm×260mm×360mm Weight 20kg Power Supply AC220V, 50HZ For more discount information on mask testing instruments, you can call 13539758284 or contact email: info@gbtest.cn
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  • Surgical Face Masks and General-Use Masks testing
    Surgical Face Masks and General-Use Masks testing 2020-03-27
    GBPI offers a comprehensive set of testing machine for surgical face masks and general-use medical masks. These tests are essential to ensuring performance properties are validated to support marketing label claims and to classify these mask types. For CE marking submissions, additional tests may be required depending on label claims. Summary of face mask testers Bacterial Filtration Efficiency (BFE) Differential Pressure Particle filtration efficiency Synthetic blood fluid penetration resistance for face masks Ethylene Oxide (EO) Residual Testing Face Mask Respiratory resistance testing mask elastic band testing Flammability test click to see GBPI face mask testers Applicable Standards ASTM 2100 EN 14683 NIOSH ISO 10993 Study Outline Bacterial Filtration Efficiency (BFE) The Bacterial Filtration Efficiency test determines the filtration efficiency by comparing the bacterial control counts to test article effluent counts. The test is conducted using Staphylococcus aureus as the challenge organism. After the filtration media is preconditioned, a liquid suspension of S. aureus is aerosolized and delivered to the filtration media at a constant flow rate of 28.3 liters per minute (LPM) or 1 cubic foot per minute (CFM). The aerosol droplets are drawn through a six-stage Andersen sampler for collection. The number of bacterial aerosol droplets contacting the filter media is determined by conducting challenge controls without filter medium in the test system. Challenge controls are maintained at 1700 – 3000 colony-forming units (CFU) with a mean particle size (MPS) of 3.0 ± 0.3 µm. This allows filtration efficiencies to be reported up to >99.9%. Click to see the Principle of BFE tester Particle Filtration Efficiency (PFE) The Particle Filtration Efficiency (PFE) test evaluates the nonviable particle retention or filtration efficiency of filter media and other filtration devices at sub-micron levels. This test is performed on face masks and all filter material that allows 1 cubic foot per minute (CFM) flow to pass through it. Also referred to as Latex Particle Challenge, this test is required for ASTM F2100 and is performed according to the ASTM F2100 and follows the basic principle of ASTM F2299. Applicable Standards ASTM F2100 ASTM F2299 more details of Particle filtration efficiency tester Synthetic Blood Penetration for Liquid Barriers The Synthetic Blood Penetration – Splash Resistance test is one of two synthetic blood resistance tests to determine a product’s ability to act as a barrier to blood-borne pathogens. The Splash Resistance test method challenges medical face masks with a fixed volume of synthetic blood directed at high velocity at the center of the mask. This test is required by ASTM F2100 and is tested in compliance with ASTM F1862, ASTM F2100, EN 14683, and ISO 26609. Applicable Standards ASTM F1862 ISO 22609 ASTM F2100 EN 14683 more details of mask Resistance against Penetration tester Flammability Test: The Flammability test proc...
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