Test Water Vapor Transmission in Leather for Garments

Product Description

Principle

Under a certain test temperature, a constant humidity difference is generated between two sides of the test specimen. The water vapor permeates through the specimen and into the dry side. By measuring the weight changes of the test dish in different time, water vapor transmission rate and other parameters can be obtained.

Standards

This test instrument conforms to the following standards:
ISO 2528, GB 1037, GB/T 16928, ASTM E96, ASTM D1653, TAPPI T464, DIN 53122-1, JIS Z0208, YBB 00092003

Applications

This instrument is applicable to the determination of water vapor transmission rate of:

Basic Applications
Films Including plastic films, plastic composite films, paper-plastic composite films, geomembranes coextruded films, aluminized films, aluminum foils, aluminum foil composite films and many others
Sheeting Including engineering plastics, rubber and building materials, e.g. PP, PVC and PVDC
Paper and Paper Board Including paper and paper board, e.g. aluminum foil paper for cigarette packages and Tetra Pak materials
Textiles and Nonwovens Including textiles and non-woven materials, e.g. waterproof breathable fabric, non-woven fabric for diapers and hygienic products
Extended Applications
Artificial Skin Artificial skin has to meet standard requirements for water vapor transmission rate to ensure better breath performance. This instrument can be used to test  water vapor permeability of artificial skin
Medical Products and Accessories Including plasters, aseptic wound protecting films, face masks and scar sticks
Solar Back-Sheets Including solar back-sheets
LCD Monitor Films Including LCD monitor films
Paint Films Test water vapor permeability of various sorts of paint films
Cosmetics Test water vapor permeability of cosmetics
Biodegradable Films Test water vapor permeability of various sorts of biodegradable films, e.g. starch-based packaging films

Technical Specifications

Specifications	Film Test
Test Range	0.110,000 g/m224h (Water Method) 0.12,500 g/m224h (Desiccant Method)
Number of Specimens	16 with independent test results
Accuracy	0.01 g/m224h
Resolution	0.001 g (Customization Available)
Temperature Range	15C55C (standard)
Temperature Accuracy	0.1C(standard)
Humidity Range	Water Method: 90%RH 70%RH Note1
	Desiccant Method: 10%RH98%RH Note2
Humidity Accuracy	1%RH
Air Velocity	0.52.5 m/s (customization available)
Specimen Thickness	3 mm (customization is available for other thickness)
Test Area	33 cm2
Specimen Size	74 mm
Test Chamber Size	45 L
Gas Supply	Air
Gas Supply Pressure	0.6 MPa
Port Size	6 mm PU tubing
Instrument Dimension	660 mm (L) x 580 mm (W) x 580 mm (H)
Power Supply	220VAC 50Hz / 120VAC 60Hz
Net Weight	80 kg

Note1: Herein the "Humidity means the humidity difference between the two sides of the film specimen. The humidity in the test chamber is 10%30%RH accordingly.

Note2: Herein the "Humidity means the humidity difference between the two sides of the film specimen. The humidity in the test chamber is 10%RH-98%RH when the temperature is 15 to 40 C, 10%RH-90%RH when the temperature is 45 C, 10%RH-80%RH when the temperature is 50 C, 10%RH-70%RH when the temperature is 55 C.

Configurations

Standard Configurations

Instrument, Professional Software, Test Dishes, Desiccant Tube, Humidity Generator, Calibration Weight, Communication Cable, Round Sample Cutter and Valve Set

Optional Parts

Satellite Base, Reference Film, Air compressor and Desiccant

Note

1. The gas supply port of the instrument is 6 mm PU tubing;
2. Customers will need to prepare for gas supply and distilled water.

Reliable Gravimetric Testing for Leather Garments

Utilizing the ISO 14268 cup method, this equipment delivers dependable water vapor transmission measurements, vital for ensuring garment breathability and comfort. Its digital timer control and uniform test conditions produce consistent results, bolstered by a robust stainless steel and powder-coated MS chamber. Its semi-automatic nature makes the process straightforward for laboratory professionals.


Precision Calibration and Easy Operation

The equipment is supplied with calibration weights for accuracy (1%) and features easy sample mounting with secure clamps. Six specimens ( 80 mm each) can be tested in a single cycle, streamlining laboratory workflows. The digital display, rapid response time, and user-settable test duration enhance operational efficiency, while overload and short-circuit protection ensure safety.