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Air Permeability Tester GT-C27 Explained:
Definition, Standards, and Features
This involves a critical textile testing project. Air permeability evaluates fabric breathability, wearing comfort, and functional performance.
1: Definition of the GT-C27 Air Permeability Tester
PPE
medical textiles
ASTM D 737 and ISO 9237 are two major testing standards for measuring a fabric’s air permeability value. Both testing methods have almost the same testing behavior but vary in result units and instrument surface head.
4: Key Features of the GT-C27 Air Permeability Tester
The GT-C27 air permeability test ASTM D737 is designed with the core demands of textile testing in mind, and its performance and operation experience are optimized in an all-round way. Its core features are as follows:
- Adopts USA Dwyer high-precision pressure and differential pressure transducer, which ensures the accuracy and reliability of test data from the source.
- Equipped with microcomputer processing system, no manual calculation is needed, and the test results can be directly displayed, which greatly improves the testing efficiency.
- Configured with a thermal printer, which can print the test results on site and facilitate the filing and sorting of test reports.
- Built-in 7 commonly used testing units: mm/s、m³/m²·min、cm³/cm²·s、m³/m²·h, cfm, L/dm²·min, L/m²·s, meeting the unit conversion requirements of different test standards.
- Air permeability test ASTM D737 supports dual operation modes of touch screen control and computer connection, which is flexible and convenient to operate and adapts to different testing site environments.
- The testing arm is driven by pneumatic control, which can realize automatic pressing and lifting, avoid manual operation errors and ensure the consistency of test conditions.
- Equipped with 11 nozzles of different calibers, which can be matched according to the air permeability characteristics of different specimens and expand the testing range.
- Realizes full range and automatic detection, which can automatically identify the test range of the specimen and complete the detection without manual adjustment.
- The air permeability test for fabric head size can be automatically sensed, and the replacement of the test head is simple and convenient, which shortens the preparation time of the test.
- The variable hole test plate has an automatic cleaning function, which can avoid the blockage of the test plate by fiber and dust and ensure the long-term testing accuracy of the instrument.
Brief Working Principle of the GT-C27 Air Permeability Tester
The GT-C27 Air Permeability Tester follows the basic principle of fabric air permeability testing - pressure difference-driven airflow. The tested specimen is fixed on the test head, and the instrument forms a stable and adjustable pressure difference on both sides of the specimen through the pneumatic system. The high-precision pressure and differential pressure transducer detects the airflow rate passing through the specimen under this pressure difference condition, and the microcomputer processing system automatically calculates the air permeability value of the specimen according to the test area, pressure difference and airflow rate, and directly displays the result on the touch screen or outputs it through the computer.
The whole test process is completed in a closed system, which avoids the interference of external air flow on the test results. The automatic cleaning of the test plate, the automatic pressing of the test arm and other functions further ensure the repeatability and accuracy of the test results.
In the context of the increasingly strict quality requirements of the textile industry, the GESTER GT-C27 air permeability testing machine can provide reliable data support for product research and development, production quality control and third-party quality inspection, and is an important guarantee for enterprises to ensure product quality and comply with domestic and international market standards. Whether it is for daily textile production or the testing of special industrial materials, the GT-C27 Air Permeability Tester is a practical and professional testing solution.
FAQ about the GT-C27 Air Permeability Tester
We have sorted out the most frequently asked questions about the GT-C27 Air Permeability Tester from customers and industry practitioners, covering operation, maintenance, adaptation and other aspects to answer your doubts in detail.
Q1: How to calibrate the GT-C27 to ensure the long-term accuracy of the test data?
A: The instrument is calibrated before delivery and is equipped with a professional calibration manual. Customers can perform regular self-calibration according to the manual; we also provide on-site calibration and after-sales calibration services for the instrument to ensure that the test data is always in line with standard requirements.
Q2: Is the GT-C27 suitable for testing the air permeability of ultra-thin non-woven fabrics and thick industrial filter materials at the same time?
A: Yes. The instrument is equipped with full-range automatic detection function and 11 nozzles of different calibers, which can adapt to the air permeability testing of ultra-thin, ultra-dense, thick and porous materials, and the pneumatic test arm can adapt to the thickness of different test specimens to ensure no air leakage during the test.
Q3: What should I do if the test result of the instrument deviates or the display is abnormal?
A: First, check whether the test specimen is placed stably and whether the variable hole test plate is clean (the instrument has an automatic cleaning function, which can be activated first for cleaning); if the problem still exists, you can contact our after-sales technical team for remote debugging or on-site maintenance.
Q4: Can the test data of the GT-C27 be exported to a computer for data sorting and analysis?
A: Yes. The instrument supports computer connection operation, and the test data can be directly exported to the computer in Excel/CSV format, which is convenient for subsequent data sorting, statistical analysis and report making.
Should you require further details on textile testing solutions, standards or air permeability testers, our team is ready to assist:
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