Water vapor permeability tester - weighing method

NegotiableUpdate on 04/28

Model

Nature of the Manufacturer: Producers

Product Category

Place of Origin

Online Consult

Overview

STW-8-080-F focuses on packaging and material testing technology, dedicated to quality control in industries such as healthcare, pharmaceuticals, food, packaging, textiles, and new materials. Its products are widely used in enterprises, testing institutions, universities, and research institutes.

Product Details

Product Name: Water vapor permeability tester - weighing method
Product Code: STW-8-060-F

STW-8-080-F

Function

Water vapor transmission performance test - water vapor transmission capacity, transmission rate, and transmission coefficient.

Films, sheets, boards, containers, and building materials made of plastic, fabric, leather, metal, and other materials.

STW-8-060-F

Working principle

Balance weighing: weight reduction method, can be placed in both upright and inverted cups.

Place pure water in the sample cup; Seal the sample cup with the sample and place it inside the testing box; Control the temperature, humidity, and wind speed of the test box; The humidity difference inside and outside the sample cup drives water vapor to penetrate the sample, resulting in a decrease in the mass of the sample cup; Regularly weigh the sample cup and calculate performance parameters such as the water vapor transmission rate of the sample.

Compliant with standards

Chinese Pharmacopoeia (Part IV) - Determination of Water Vapor Transmittance 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。

FEATURES

Strictly comply with domestic and international standards;
Tested for 48 hours, with a test error of less than 0.05 g/m²•24h， And it decays to zero with the testing time.
Patent moisture permeable cup: The sample has no plastic on the outside (to avoid water absorption), anti slip design (no distortion of the sample), and reliable sealing.
Temperature and humidity: automatic humidity control; Semiconductor cold and hot bidirectional automatic temperature control.
Balance protection: patented insulation and moisture prevention technology ensures the stability and lifespan of the balance.
Uniform wind speed: Double plane spiral circulation wind with uniform wind speed, humidity, and temperature fields.
Fully automatic: One click testing, automatically ending the experiment and saving data; Desiccant replacement free: Desiccant replacement free (over one year).
Working environment: Indoor, no need for constant temperature and humidity environment (reducing usage costs), test data is not affected by environmental temperature and humidity.
Fault self check: Power on self check to avoid testing under fault conditions.
Data recording: graphical, full process, all element recording, no loss of power-off data.
Data Security: The optional "GMP Computerized System" software module has functions such as user management, permission management, and data audit tracking.

TECHNICAL INDEX

Name	parameter	name	parameter
measuring range	Diaphragm: 0.05-10000 g/m²•24h； Container: 0.0002-30 g/pkg • 24h	test error	Diaphragm: 0.05 g/m²•24h； Container: 0.0002 g/pkg • 24h
Scale range	210 g	Scale division of the balance	0. 1 mg
temperature range	10-50 ℃	Temperature control error	±0.1 ℃
Humidity range	5% - 50% RH	Moisture control error	±1% RH
Wind speed	0.5-2.5 m/s (optional 0.03-0.5 m/s)	Mpa	>0.3 MPa (self provided)
test area	33 cm²	specimen thickness	<3 mm
Container quality	<180 g	Container height	<150 mm
Power supply	AC220V±10％ 50Hz	Power	<2 kW
Model differentiation	Model number
Model differentiation	STW-8/080-F
Number of samples	8
Host size	873(L)x700(B)x688(H)
Net weight of the host	126 kg

Standard configurationTest host, computer, air dryer, professional testing software, breathable cup (number of workstations), calibration weight, sampler.

Optional configurationSoftware module of GMP computerized system, wax sealed sample cup.

Bring your ownCompressed air.