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  • What is the test process and steps of the GBPI mask synthetic blood penetration tester
    What is the test process and steps of the GBPI mask synthetic blood penetration tester 2020-10-23
        Guangzhou Biaoji Packaging Equipment Co., Ltd. (GBPI) is a professional manufacturer of laboratory testing equipment. It has an elite team with more than 20 research and development experience in the testing industry. The face mask testing machine such as EN14683 BFE test apparatus、paticulate filtration efficiency tester、flame retardant face mask tester and so on developed by our company is well received by customers in the market. GBPI mask consultant takes you to understand the test process and steps of the synthetic blood penetration test instrument for masks. Mask synthetic blood penetration tester Principle: The synthetic blood permeability tester for masks is used to test the resistance of medical masks, disposable masks and other protective masks to the penetration of synthetic blood under different test pressure levels. Standards: GB/T 19083-2010 Technical requirements for medical protective masks 5.6 Synthetic blood penetration barrier performance YY/T0469-2011 Medical surgical mask 5.5 Synthetic blood penetration test ASTMF1862 Test Method for Resistance of Synthetic Blood Permeability of Medical Masks (Fixed Volume of Horizontal Jet at Known Speed) ASTMF2100 Synthetic blood penetration resistance in the performance requirements of medical masks EN14683 Specifies the structure, design, performance requirements and test methods of medical masks Parameters: 1.Spraying distance: 300mm~305mm adjustable 2.Jet speed: 400cm/s-7000cm/s adjustable Features: 1. The sample is specially customized for the fixing device to simulate the actual use of the outlet cover, and the sample is kept in the special experimental area; 2. Constant pressure spray device, which can spray a certain volume of synthetic blood within a controlled time; 3. It can fully simulate the injection speed corresponding to the average human blood pressure 10.6kPa, 16kPa, and 21.3kPa for testing. Testing process: Fix the mask sample on the sample holder of the instrument, and spray the synthetic blood from the nozzle horizontally to the target area of  the sample to be tested at a distance from the center of the sample at the set pressure, and visually inspect it within 10 seconds after removal. Testing steps: 1.Pull down the sample cover of the instrument, clamp the sample on the fixture, and close the sample holder and protective cover after fixing. 2.Set the relevant parameters (spray pressure and spray time), click [feed] to pour the synthetic blood, adjust the height of the nozzle, and press "[Start]. At this time, spray horizontally toward the tested mask behind the positioning target, and hear With a beep, the instrument automatically stops spraying and the experiment is over. 3.After the test is all over, the synthetic blood residue in the test solution tank is cleaned, replaced with distilled water, and the entire pipeline is cleaned. After the nozzle sprays clean water, continue to drain all the clean water in the test solution tank. Close ...
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  • Guangzhou Biaoji Packaging Equipment Co., Ltd.  (GBPI ) International Team continues to grow
    Guangzhou Biaoji Packaging Equipment Co., Ltd. (GBPI ) International Team continues to grow 2020-10-19
        Guangzhou Biaoji Packaging Equipment Co., Ltd. (GBPI) is a supplier of flexible packaging testing equipment, protective equipment testing equipment, and testing solutions. It is an enterprise integrating R&D, production and sales of testing equipment, packaging equipment, modified atmosphere preservation equipment and other products, as well as providing third-party testing and standard material competence verification.     A professional manufacturer focusing on the development and production of packaging material testing instruments and tube sealing machines. The company provides complete packaging testing laboratory construction programs and testing instruments for institutions in dozens of countries and regions around the world. The scope covers: inspection institutions, scientific research institutions, food and pharmaceuticals, daily chemical cigarette packs, packaging factories, new materials, new energy, film factories and other different fields. Allow users all over the world to share the standard testing technology and testing solutions.     In 2010, it was awarded the high-tech enterprise of Guangdong Province, and obtained the national standard material certificate, CNAS laboratory accreditation certificate, Guangzhou enterprise research and development organization certificate, etc. Guangzhou Standard International maintains long-term cooperative relations with domestic and foreign universities and scientific research institutions for mutual benefit and win-win results. The company has won the trust and cooperation of global customers with its continuously enhanced innovation capabilities and increasingly improved delivery capabilities.     Due to the needs of international business development, the foreign trade team continues to grow. The company recruits several personnel in China: International Sales Specialist, Technical Service Engineer, and International  Marketing Specialist. The specific requirements are as follows: if you are interested, please send your resume to gbpisales6@gbtest.cn International Sales Specialist: Job Responsibilities 1. Responsible for the development of new customers and the maintenance of old customers; 2. Responsible for participating in outing exhibition activities 3. Responsible for customer inquiry and quotation, and regularly recommend products with customers 4. Responsible for collecting, analyzing, organizing and archiving market information such as customer needs and competitors Qualifications: 1. Bachelor degree or above, major in international trade, business English, and marketing; 2. CET-6, fluent in spoken English, able to communicate fluently with foreign clients; 3. Being upright, serious and responsible, with strong language skills; 4. Obey the arrangement of superiors and have a strong sense of team honor; 5. Have working experience in the same position, even outstanding fresh graduates. other:...
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  • how to calculate compression strength of corrugated box?
    how to calculate compression strength of corrugated box? 2020-09-25
        The compression strength of cartons is the most important quality index required by many commodity packaging. During the test, the corrugated carton is placed between two pressure plates and pressed to pressure when the carton is crushed. This is the compression strength of the carton, expressed in kn. compression strength of predetermined carton     Carton boxes require a certain degree of compression strength, because during storage and transportation after packaging, the cartons stacked in the bottom layer are under the pressure of the upper cartons. In order to avoid collapse, they must have the appropriate compression strength. Not only can the carton compressor be tested, the compression strength of the carton can be calculated by the following formula: P = KW (n-1)     Where p is the compression strength of the carton, w is the weight of the carton after packing, n is the number of stacking layers, and K is the stacking safety factor, and K is the stacking safety factor Calculate the stacking layer number n according to the stacking height h and the height of a single carton h, and N = H / h. The stacking safety factor is determined according to the number of stacking layers of the goods. According to national standards, for storage periods less than 30d, k = 1.6; for storage periods of 30d-100d, k = 1.65; for storage periods greater than 100D, K = 2.0.     Due to the influence of various factors in the production process, the final compression strength of the cartons produced with raw materials may not be completely consistent with the estimated results. Therefore, the ultimate accurate method to determine the compression strength of corrugated boxes is to test the compression strength of corrugated boxes with a carton compression tester after constant temperature and humidity treatment. For small and medium-sized factories without testing equipment, a board can be covered on the carton, and then the same amount of weight can be stacked on the carton to roughly determine whether the compression strength of the carton meets the requirements After the compression strength of the carton is determined according to the raw materials, the appropriate carton board and corrugated base paper should be selected to produce the corrugated carton, so as to avoid blind production and cause waste T    here are many formulas for calculating the compression strength of cartons based on the ring compression strength of the base paper, but the more concise and practical formula is the Kellicutt formula, which is suitable for estimating the compression strength of 0201 cartons.     Profession creates value, GBPI creates quality products! GBPI produces packaging compression testing machines, hot tack tester,heal seal strength tester, and other packaging testing instruments. Welcome to consult!
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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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  • How does a leak tester work
    How does a leak tester work 2020-08-14
    Packaging testing is essential to ensure the integrity of the packaging development, machine setup and quality control process. How to quickly choose a suitable air tightness testing equipment has become a major problem that plagues enterprises. Guangzhou GBPI company will introduce to you the testing methods of the mainstream air tightness detectors on the market. Companies can choose the right instrument according to their needs. 1. Positive pressure detection The positive pressure method is to seal and inflate the tested equipment so that its internal pressure is higher than the external atmospheric pressure. Three methods can be used: pressure drop method judgment, water immersion detection and fixed-point detection. Judgment by pressure drop method: In the case of completely sealing all contact surfaces, inflate the product, observe the pressure change through the air tightness tester to determine the magnitude of the leakage, and then infer the leakage of the equipment, but not the leakage point Make clear positioning. Water immersion detection (bubble method detection): Inflate a certain clean gas into the equipment, when the pressure reaches the set value, immerse it in water, and judge the location and size of the leak by observing the air bubbles. It is suitable for immersing in the interior Product detection in the water can accurately determine the location of the leak. Differential pressure detection method: The compressed air (positive pressure) is accurately input into the tested product and the standard product at the same time, the inflation circuit is cut off, and the IK-ALT series air tightness detector is used to calculate, compare and analyze to obtain the tested product The pressure difference ΔP between the product and the standard product is used to determine whether the product is qualified. 2. Vacuum leak detection (negative pressure method) detection The negative pressure method is to vacuum when the equipment is sealed to make the internal pressure less than the external atmospheric pressure. Specific applications include vacuum attenuation method (dry inspection) and vacuum side leakage method (water inspection) Vacuum attenuation method: Under the condition of completely sealing all contact surfaces, directly or indirectly vacuumize the product, and analyze and read the pressure value ΔP3 through the IK-MF series air tightness detector to determine whether the product is qualified . Vacuum side leakage method: differential pressure leak test method and bubble leak test method, the product to be tested is put into the leak test box, and the vacuum is drawn on the box body to cause a pressure difference between the inside and outside of the test product. At this time, the following phenomena will occur: a) For flexible packaging and soft bottles: I. If the packaging bag bulges and remains unchanged, the packaging is intact; II. The packaging bag does not bulge or shrinks, indicating that the packaging leaks; III. The p...
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