Testeur de perméabilité à la vapeur d'eau C370H

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The C370H Water Vapor Transmission Rate Test System is designed and manufactured based on the gravimetric method and complies with ASTM E96 and GB 1037 standards. This test system enables large-scale and high-efficiency water vapor permeability measurements for films and containers used in pharmaceutical packaging, as well as films, containers, sheet materials, papers, textiles, nonwovens, and related materials in the food, medical device, consumer chemicals, and new energy sectors.Accurate Data360° air circulation and constant temperature ensure a stable test environment.High-precision temperature and humidity sensors, along with a control system, monitor real-time variations in temperature and humidity.The airtight pneumatic chamber design automatically isolates the test chamber from the weighing chamber, preventing the effects of high temperature and humidity on the balance.The three-dimensional centered purge design ensures uniform airflow distribution over the test cups, eliminating local discrepancies.The standard airflow maintains a constant humidity difference between the inside and outside of the test boxes; selectable airflow rates are available.The chamber-type fog-free humidification system eliminates the need for an internal humidifier.German electronic balance with touchscreen achieves repeatability up to 0.3 mg.An external weight calibration system is available for easy measurement.Professional and EfficientBoth desiccant and water methods can be used for testing.Testing of films and containers can be performed.Screw-on test cups, if the optional B2260 is installed, can achieve automatic and quantitative liquid addition and tightening.Automatic zeroing before weighing ensures accurate measurements every time.The lifting and rotating mechanism of the cylinder, as well as intermittent weighing, effectively reduce system errors.The 45L test chamber volume allows testing of containers of varying heights.Independent testing of 6 or 9 test cups with respective result display.Intelligent Control10.6-inch touchscreen, allowing the host device to operate independently.Fully automated, requiring no manual intervention, and data is stored automatically.Wide automatic and high-precision control range for temperature and humidity allows easy implementation of non-standard tests.Platform-based software enables synchronous control of multiple hosts with centralized data management.Multiple sensors provide intelligent alerts for safer operation.Built-in Ethernet port for direct Internet connection enables remote control and system upgrades.Professional computer software meets GMP data traceability requirements and pharmaceutical industry compliance needs.Multi-level operation authorization management, configurable on demand.Electronic signature designed in accordance with 21 CFR Part 11.Test PrincipleA pretreated sample is sealed in a cup containing water or a desiccant, then placed in a test chamber. This chamber automatically generates and maintains stable temperature, humidity, and air circulation according to specified test conditions. Water vapor diffuses through the sample to the dry side. A high-precision balance measures the weight changes of the cup over time and calculates the water vapor permeability of the sample, as well as other parameters.Reference StandardsASTM E96, GB/T 1037, GB/T 16928, ASTM D1653, ISO2528, TAPPI T464, DIN 53122-1, YBB00092003Test ApplicationsBasic ApplicationsFilmsWater vapor transmission rate tests for various plastic films, composite plastic films, paper-plastic composite films, coextruded films, metallized films, aluminum foil composite films, paper-aluminum foil composite films, fiberglass, and other film materials.ContainersWater vapor transmission rate tests for various pharmaceutical packaging: vials, sachets, Tetra Pak packaging, three-piece cans, cosmetic packaging, toothpaste tubes, jelly cups, yogurt pots, and other bottles, sachets, cans, drums made of plastic, rubber, paper, paper-plastic composite, glass, and metal.Sheet MaterialsWater vapor transmission rate tests for sheet materials such as PP, PVC, PVDC sheets, metal sheets, rubber sheets, etc.Paper, Cardboard, and Related CompositesWater vapor transmission rate tests for paper and cardboard such as cigarette pack aluminized paper and paper-aluminum-plastic composite sheets.Textiles and NonwovensWater vapor transmission rate tests for textiles, nonwovens, and other materials.Extended ApplicationsConstruction MaterialsWater vapor transmission rate tests for geotextiles, felts, thermal insulation felts, thick sheet waterproof and thermal insulation construction materials, etc.Sterile Dressings, Medical Adhesive DressingsWater vapor transmission rate tests for sterile dressings, medical adhesive tapes, etc.Technical ParametersParameter ModelC370HTest Ranges0.1 ～ 10,000 g/(m²·day) (Water Method)0.1 to 2500 g/(m²·day) (Desiccant Method)Balance Range220 gBalance Resolution0.1 mgBalance Repeatability0.3 mgTemperature Range15～50°CTemperature Fluctuation±0.2°CHumidity Range10～90%RH ±2%Extended Functions21 CFR Part 11 (Optional)GMP computer system requirements (Optional)Technical SpecificationsTest Stations69 (optional)Test MethodDesiccant method and water methodSpecimen TypesFilms, ContainersAir Flow0.02 to 0.3 m/s, 0.5 to 2.5 m/sSample SizeΦ4.2” (74 mm)Sample Thickness≤120 mils (3 mm)Test Areas33 cm²50 cm² (optional)Container Size≤Φ70 mm×180 mm (optional)Gas SpecificationsCompressed air (gas source to be provided by user)Gas Source Pressure72.5 PSI / 500 kPaPort Size8 mm diameter polyurethane tubeHost Dimensions29 in H x 23 in W x 30 in D (73 cm × 57 cm × 76 cm)Power Supply120 V AC ± 10% 60 Hz / 220 V AC ± 10% 50 Hz (choose one)Net Weight187 lbs (85 kg)Product ConfigurationStandard ConfigurationHost device, electronic balance, air dryer (maintenance-free), pressure-reducing filter valve, precision water vapor test cups (6 pcs), disassembly tools for water vapor test cups, power cord, 8 mm diameter polyurethane tubeOptional ItemsSoftware, GMP computer system requirements, 21 CFR Part 11, air compressor (≥ 200 L/min), precision water vapor test cups, B2260 clamping device for water vapor test cupsNote 1: Product features are based on the specific specifications in the "Technical Parameters" table.Note 2: All parameters in the table were measured in the Labthink laboratory by professional operators according to relevant laboratory standards and environmental conditions.Note 3: Maximum range = maximum range / n, where n can be from 1 to 6 (pieces).Note 4: Test accessories for container samples must be customized according to the corresponding sample size.Product Features / Technical Specifications (Summary)Gravimetric method, compliant with ASTM E96, GB 1037, and other international standards360° air circulation and constant temperature for stable test environmentHigh-precision sensors for temperature and humidityAutomatic isolation of test and weighing chambersUniform airflow distributionWide test range: 0.1 ～ 10,000 g/(m²·day) (water method), 0.1 to 2500 g/(m²·day) (desiccant method)Balance resolution: 0.1 mg; repeatability: 0.3 mgTemperature range: 15–50°C; humidity range: 10–90%RH ±2%6 or 9 independent test stationsTouchscreen control, fully automated operationData traceability and compliance with GMP and 21 CFR Part 11 (optional)Applications: films, containers, sheets, paper, textiles, nonwovens, construction materials, medical dressings, etc.