UTSTESTER unveils fully automatic WVTR tester for ISO 12572 and ASTM E96 labs

UTSTESTER's M029-ISO12572 Fabric Water Vapor Transmission Tester automates moisture vapor testing for textiles and membranes, with built-in weighing, closed-chamber operation and multi-standard compliance. The system is aimed at labs and manufacturers that need faster, more repeatable WVTR results with less manual handling.

Why it matters: - Water vapor transmission rate testing is central to breathable fabrics, membranes and coated textiles, but manual workflows can slow labs down and introduce measurement drift. - The M029-ISO12572 is designed to reduce operator handling, improve repeatability and support results that can be used across multiple international markets.

What happened: - UTSTESTER introduced the M029-ISO12572 Fabric Water Vapor Transmission Tester for automated WVTR testing. - The instrument is built for moisture permeability testing under ISO 12572 and ASTM E96, with support for GB/T 12704, GB/T 17146-2015, JIS L 1099 and BS 7209. - The system targets textile and membrane testing workflows that normally require repeated manual weighing and chamber opening.

The details: - The M029-ISO12572 integrates a high-precision imported analytical balance with 0.001 g resolution inside the test chamber. - The tester weighs, records and calculates results automatically without opening the chamber door. - The system supports an 8-cup, single-tier batch configuration for simultaneous testing of eight samples. - The temperature range is 18–50°C, with ±0.5°C control accuracy and ±0.1°C resolution. - Relative humidity control ranges from 40–95% RH, with ±2% RH control accuracy. - Internal airflow velocity is adjustable from 0.1–0.8 m/s. - The instrument uses a PID control algorithm and high-precision sensors to limit fluctuation and overshoot. - A rotating sample rack runs at 1–15 r/min to expose cups more uniformly to airflow. - The tester offers two automatic end-of-test modes: fixed cycle mode and mass change rate mode. - Fixed cycle mode runs a set number of weighing cycles and calculates the average result. - Mass change rate mode ends the test once the rate of weight change stabilizes. - The color touchscreen includes bilingual Chinese and English menus.

Between the lines: - The product is aimed at labs that want to reduce the impact of human handling on WVTR data. - Multi-standard support matters because the same instrument can serve regional compliance needs in Europe, North America, Japan, Britain and China. - The rotating rack and closed-chamber weighing approach are meant to improve consistency across batches, not just automate the workflow.

What's next: - UTSTESTER is pitching the M029-ISO12572 to sportswear and outdoor apparel brands, fabric mills, coating manufacturers, third-party testing labs, medical and hygiene textile producers, and R&D teams. - The company expects the instrument to support breathability validation, incoming and outgoing QC, and development work on new membrane materials and functional fabrics.

The bottom line: - The M029-ISO12572 replaces a manual, interruption-prone WVTR process with a closed, automated testing loop built for speed, consistency and multi-standard use.