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Key: test item, instrument name, total nonvolatile migration, gravimeter, moisture permeameter

Product

Water Vapor Transmission Rate Tester-Gravimetric_Method

LabStone provides precise measurement solutions for assessing barrier properties of packaging materials.LabStone's permeability test instruments evaluate water vapour transmission rates, delivering critical barrier data needed for film analysis. LabStone's advanced water vapour transmission rate permeation testers ensure conforming international standards(ISO,ASTM,EU etc), making them ideal for quality control assurance in the pharmaceutical, food and beverage and other demanding industries.
Focusing on packaging and material testing technology, we are committed to quality control in industries such as healthcare, pharmaceuticals, food, packaging, textiles, and new materials. Our products are widely used in enterprises, testing institutions, universities, and research institutes.

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Permeation Analyzer

Water Vapor Transmission Rate Analyzer

WVTR Tester- Gravimetric Method

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Description
Applications
Standard
Features
Parameter
Configuration
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Commodity name: Water Vapor Transmission Rate Tester-Gravimetric_Method

Function and Usage

Water vapor permeability testing.

Water vapor transmission rate, permeability rate, permeability coefficient. Used for membranes, films, sheets, containers, and building materials made of materials such as plastic, fabric, leather, metal, etc.

Working Principle:

Balance Weighing: Water method and desiccant method are integrated, upright or inverted test cup both supported. Desiccant (desiccant method) or water (water method) is placed in the cup; seal the cup with specimen, place it in the test chamber; control the temperature, humidity and airspeed of the test chamber; the humidity difference between cup’s inside and outside drives water vapor to permeate the sample; the mass of the sample cup increases or decreases; weighing the at a regular intervals, calculate the water vapor permeation and other performance parameters of the sample.

Compliant Standards:

Pharmacopoeia - Method for Determination of Water Vapor Permeability, GB/T 1037, YBB 00092003, ASTM E96, ISO 2528, GB/T 17146, GB/T 12704, GB 19082, GB/T 21332, QB/T 2414, TPPI T464, ASTM D1653, YY0471.2, DIN 53122, etc.

Features:

Strict compliance with U.S. and international standards.
Testing for 48 hours with a testing error less than 0.05 g/m²•24h, and the error attenuates to zero as the testing time increases.
Fog-free humidifier: Completely gaseous, no fog, avoiding false permeation caused by fog settling.
Built-in humidifier: Moisture directly enters the test chamber, bypassing the low-temperature zone to ensure stable high humidity.
Patented permeable cup: No plastic on the exterior of the cup(to avoid water absorption), non-slip design (no distortion of the sample), reliable sealing.
Temperature and humidity: Automatic humidity control, automatic water replenishment; semiconductor cooling and heating for bidirectional temperature control.
Balance protection: Patented balance heat insulation and moisture-proof technology to ensure stability and longevity of the balance.
Uniform airspeed: Double-plane spiral circulation air, uniform airspeed, humidity field, and temperature field.
Fully automatic: One-key testing, automatic ending, and data saving; desiccant replacement of dryer is not required (once a year).
Working environment: Indoor, constant temperature or humidity environment is not required(reducing operating costs), testing data can’t affected by environmental temperature and humidity.
Self-diagnosis of faults: Self-check at startup to avoid testing in a faulty state.
Data recording: Graphical, recording throughout the process with all elements, data not lost in case of power outage.
Data security: Optional "GMP Computerized System" software module with user management, permission management, data audit trail, and other functions.

Specifications

Parameter	Value	Parameter	Value
Measurement Range	Film: 0.05-10,000 g/m2•24h, Container: 0.0002-30 g/pkg•24h	Measurement Error	Film: 0.05 g/ m²•24h, Container: 0.0002 g/pkg•24h
Balance Range	210 g	Balance Resolution	0.1 mg
Temperature Range	15-45℃	Temperature Error	±03 ℃
Humidity Range	10% - 90%	Humidity Error	±2% RH
Airspeed	0.03 - 2.5 m/s（stepless speed regulation）	Air Pressure	>0.3 MPa (self-supplied)
Test Area	33 cm²（Other areas can be customized）	Sample Thickness	< 3mm
Custom Cup Height	<150 mm
Power Supply	AC220V /110V ;50/60Hz	Power	＜2,000 W
Model	Model
Model	W-B-121-G
Sample Quantity	12
Mainframe Size	898×727×677 mm (LxBxH)
Net Weight	appr. 108 kg

Standard Configuration:

Testing mainframe, computer, air dryer, professional testing software, sample cups, calibration weight, sampler.

Optional Configuration:

GMP Computerized System software module, wax-sealed sample cups.

Self-supplied:

Compressed air, distilled water, desiccant.

Function
Water vapor permeability testing.
Water vapor transmission rate, permeability rate, permeability coefficient. Used for membranes, films, sheets, containers, and building materials made of materials such as plastic, fabric, leather, metal, etc.
Principle
Balance Weighing: Water method and desiccant method are integrated, upright or inverted test cup both supported. Desiccant (desiccant method) or water (water method) is placed in the cup; seal the cup with specimen, place it in the test chamber; control the temperature, humidity and airspeed of the test chamber; the humidity difference between cup’s inside and outside drives water vapor to permeate the sample; the mass of the sample cup increases or decreases; weighing the at a regular intervals, calculate the water vapor permeation and other performance parameters of the sample.
Standards
Pharmacopoeia - Method for Determination of Water Vapor Permeability, GB/T 1037、YBB 00092003、ASTM E96、ISO 2528、GB/T 17146、GB/T 12704、GB 19082、GB/T 21332、QB/T 2414、TPPI T464、ASTM D1653、YY0471.2、DIN 53122, etc.
Features
- Strict compliance with U.S. and international standards.
- Testing for 48 hours with a testing error less than 0.05 g/m²•24h, and the error attenuates to zero as the testing time increases.
- Fog-free humidifier: Completely gaseous, no fog, avoiding false permeation caused by fog settling.
- Built-in humidifier: Moisture directly enters the test chamber, bypassing the low-temperature zone to ensure stable high humidity.
- Patented permeable cup: No plastic on the exterior of the cup(to avoid water absorption), non-slip design (no distortion of the sample), reliable sealing.
- Temperature and humidity: Automatic humidity control, automatic water replenishment; semiconductor cooling and heating for bidirectional temperature control.
- Balance protection: Patented balance heat insulation and moisture-proof technology to ensure stability and longevity of the balance.
- Uniform airspeed: Double-plane spiral circulation air, uniform airspeed, humidity field, and temperature field.
- Fully automatic: One-key testing, automatic ending, and data saving; desiccant replacement of dryer is not required (once a year).
- Working environment: Indoor, constant temperature or humidity environment is not required(reducing operating costs), testing data can’t affected by environmental temperature and humidity.
- Self-diagnosis of faults: Self-check at startup to avoid testing in a faulty state.
- Data recording: Graphical, recording throughout the process with all elements, data not lost in case of power outage.
- Data security: Optional "GMP Computerized System" software module with user management, permission management, data audit trail, and other functions.

Specifications

Parameter	Value	Parameter	Value
Measurement Range	Film: 0.05-10,000 g/m2•24h Container: 0.0002-30 g/pkg•24h	Measurement Error	Film: 0.05 g/ m²•24h Container: 0.0002 g/pkg•24h
Balance Range	210 g	Balance Resolution	0. 1 mg
Temperature Range	15-45℃	Temperature Error	±03 ℃
Humidity Range	10% - 90%	Humidity Error	±2% RH
Airspeed	0.03 - 2.5 m/s（stepless speed regulation）	Air Pressure	>0.3 MPa (self-supplied)
Test Area	33 cm²（Other areas can be customized）	Sample Thickness	<3 mm
		Custom Cup Height	<150 mm
Power Supply	AC220V /110V ;50/60Hz	Power	＜2,000 W
Model	Model
	W-B-121-G
Sample Quantity	12
Mainframe Size	898(L)×727(B)×677(H)
Mainframe Net Weight	108 kg

Standard Configuration
Testing mainframe, computer, air dryer, professional testing software, sample cups, calibration weight, sampler.
Optional Configuration
GMP Computerized System software module, wax-sealed sample cups.
Self-supplied
Compressed air, distilled water, desiccant.

Keywords:

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