Water vapor permeability tester C370H

transmission ratewater vapor transmission ratetemperature

The C370H Water Vapor Transmission Rate Test System is designed and manufactured based on the gravimetric method and in accordance with ASTM E96 and GB 1037. This system provides wide-range and high-efficiency water vapor transmission rate tests for films and containers used in pharmaceutical packaging. It is also suitable for testing the water vapor permeability properties of films, containers, sheet materials, paper, fabrics, non-wovens, and related materials in food, medical device, daily chemical, and new energy sectors.Accurate Data360° air circulating constant temperature technology ensures a stable testing environment.Imported high-precision temperature and humidity sensors and control system monitor real-time temperature and humidity changes.Pneumatic chamber-sealing design automatically isolates the test chamber from the weighing chamber, preventing the effects of high temperature and humidity on the balance.Centered three-dimensional purge design ensures consistent air flow distribution over the test dishes, eliminating local deviations.Standard air flow rate maintains a constant humidity difference between the inside and outside of the test dishes; selectable air flow rates are available.Chamber-type fog-free humidification system eliminates the need for an internal humidifier.German touchscreen electronic balance reaches a repeatability up to 0.3mg.External weight calibration is available for convenient measurement.Professional & EfficientTests of desiccant method and water method can be performed.Tests of films and containers can be performed.Screw-off test dishes, if the optional B2260 is installed, can realize automatic quantitative liquid addition and tightening.Automatic zero reset before weighing ensures accurate measurements every time.Cylinder lift and rotation mechanism and intermittent weighing effectively reduce system errors.The 45L test chamber volume accommodates testing of containers of varying heights.Independent testing of 6 or 9 test dishes with respective display of results.Intelligent Control10.6" medical-grade touchscreen, allowing the host to operate independently.Fully automatic testing requires no manual intervention, and the data are stored automatically.Wide-range, high-precision and automatic temperature and humidity control allows for easy implementation of non-standard tests.Platform-based software allows 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 realizes remote control and system upgrading.Professional computer software meets GMP data traceability requirements and pharmaceutical industry compliance needs.Multi-level operation permission management, configurable on demand.Electronic signature is designed in accordance with 21 CFR Part 11.Test PrincipleA pre-treated specimen is sealed in a test dish containing water or desiccant and placed in a test chamber. The test chamber automatically generates and maintains a stable temperature, humidity, and airflow environment based on specified test conditions. Water vapor diffuses through the specimen to the dry side. A high-precision balance measures the changes in the test dish's weight over time, and calculates the specimen's water vapor permeance value and other results.Reference StandardsASTM E96, GB/T 1037, GB/T 16928, ASTM D1653, ISO2528, TAPPI T464, DIN 53122-1, YBB00092003Test ApplicationsBasic ApplicationsFilmsWater vapor transmission rate tests of various plastic films, plastic composite films, paper-plastic composite films, co-extruded films, metalized films, aluminum foil composite films, glass fiber aluminum foil paper composite films and other film materials.ContainersWater vapor transmission rate tests for various pharmaceutical packaging bottles, pouches, Tetra Pak packaging, three-piece cans, cosmetic packaging, toothpaste tubes, jelly cups, yogurt cups and other bottles, pouches, cans, boxes and barrels made of plastic, rubber, paper, paper-plastic composite, glass and metal.Sheet MaterialsWater vapor transmission rate tests of sheet materials such as PP sheet, PVC sheet, PVDC sheet, metal foil, rubber sheet, etc.Paper, paperboard and related composite materialsWater vapor transmission rate tests of paper and paperboard such as aluminized paper of cigarette packages and paper-aluminum-plastic composite sheets.Textiles and non-woven fabricsWater vapor transmission rate tests of textiles, non-woven fabrics and other materials.Extended ApplicationsBuilding MaterialsWater vapor transmission rate tests of geotextiles, felts, thermal insulation felts, thick sheet waterproof and thermal insulation building materials, etc.Sterile Wound Dressing, Medical Plaster PatchWater vapor transmission rate tests of sterile wound dressings, medical plasters, 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 mgTemp. Range15～50 ℃Temp. Fluctuation±0.2 ℃Humidity Range10～90%±2% RHExtended Functions21 CFR Part11 (Optional)GMP computer system requirements (Optional)Test Stations69 (as per customization)Test MethodDesiccant Method and Water MethodSpecimen TypesFilms, ContainersAir Flow Rate0.02~0.3m/s, 0.5~2.5m/sSpecimen SizeΦ4.2” (74mm)Specimen Thickness≤120 Mil (3mm)Test Areas33cm²50cm² (optional)Container Size≤Φ70 mm×180mm (customized)Gas SpecificationCompressed air (gas source is to be provided by the user)Gas Source Pressure72.5 PSI / 500 kPaPort SizeΦ8 mm polyurethane tubeHost Dimensions29" H x 23" W x 30" D (73cm × 57cm × 76cm)Power Supply120VAC ± 10% 60Hz / 220VAC ± 10% 50Hz (select one from the two)Net Weight187Lbs (85kg)Standard ConfigurationHost, electronic balance, air dryer (maintenance-free), pressure reducing filter valve, precision water vapor test dishes (6 pieces), disassembly tools for water vapor test dishes, power cord, Φ8 mm polyurethane tubeOptional ItemsSoftware, GMP computer system requirements, 21 CFR Part 11, air compressor (with a flow rate of ≥200L/min), precision water vapor test dishes, B2260 tightening device for water vapor dishesKey Features / Technical Specifications:Model: C370HTest Ranges: 0.1～10,000 g/(m²·day) (Water Method), 0.1 to 2500 g/(m²·day) (Desiccant Method)Balance Range: 220 gBalance Resolution: 0.1 mgBalance Repeatability: 0.3 mgTemperature Range: 15～50 ℃Temperature Fluctuation: ±0.2 ℃Humidity Range: 10～90%±2% RHTest Stations: 6 or 9 (customizable)Test Methods: Desiccant Method and Water MethodSpecimen Types: Films, ContainersSpecimen Size: Φ4.2” (74mm)Specimen Thickness: ≤120 Mil (3mm)Test Areas: 33cm², 50cm² (optional)Container Size: ≤Φ70 mm×180mm (customized)Gas Specification: Compressed air (user provided)Gas Source Pressure: 72.5 PSI / 500 kPaPort Size: Φ8 mm polyurethane tubeHost Dimensions: 29" H x 23" W x 30" D (73cm × 57cm × 76cm)Power Supply: 120VAC ± 10% 60Hz / 220VAC ± 10% 50HzNet Weight: 187Lbs (85kg)Standard Configuration: Host, electronic balance, air dryer, pressure reducing filter valve, precision water vapor test dishes (6), disassembly tools, power cord, Φ8 mm polyurethane tubeOptional Items: Software, GMP computer system requirements, 21 CFR Part 11, air compressor (≥200L/min), precision water vapor test dishes, B2260 tightening device