Protective Clothing Liquid Resistance Static Pressure Tester

The Protective Clothing Liquid Resistance Static Pressure Tester is designed to measure the liquid penetration resistance of breathable chemical protective clothing materials. It evaluates the fabric’s ability to resist corrosive liquids such as acids and bases under static pressure, providing essential data for safety verification of protective garments. The instrument is suitable for laboratory testing, quality control, and product certification.

Application

The instrument is applicable to liquid resistance testing of protective clothing in the following industries and products:

(1) Chemical Industry: acid-proof and alkali-resistant protective suits, aprons, gloves — static liquid pressure resistance assessment

(2) Medical and Laboratory Safety: lab coats, gowns, and aprons — verification of barrier performance against corrosive fluids

(3) Industrial Safety: industrial overalls, gloves, aprons — liquid penetration testing for worker safety

(4) Research and Development: development and optimization of protective textiles with high chemical resistance

(5) Quality Control Laboratories: inspection of finished protective clothing to ensure compliance with safety standards

(6) Certification and Regulatory Testing: third-party laboratories performing compliance tests for international and national protective clothing standards

Standards

The instrument is compliant with the following standards, including relevant international regulations:

(1) GB 24540-2009 – Acid and alkali resistant protective clothing — Liquid static pressure resistance test

(2) LFY-252 – Chinese standard for chemical protective clothing anti-seepage testing

(3) ISO 6530:2010 – Textiles — Protection against liquid chemicals — Determination of resistance of protective clothing materials to penetration by liquids

(4) EN 368:2017 – Protective clothing — Test method for resistance to penetration by liquids under hydrostatic pressure

(5) ASTM F903-18 – Standard Test Method for Resistance of Materials Used in Protective Clothing to Penetration by Liquids

Features & Benefits

(1) Accurately measures static liquid pressure resistance of protective fabrics

(2) Simulates real-world exposure to corrosive liquids

(3) Adjustable liquid column with controlled rising rate

(4) Measures resistance to both acids and bases

(5) Provides quantitative evaluation of fabric barrier performance

(6) Records liquid column height at the appearance of the third leak

(7) Compact, durable, and safe for laboratory use

Technical Parameters

Accessories

(1) Sample holder for protective fabric

(2) Adjustable liquid column with scale

(3) Acid/base supply system with safe handling accessories

(4) Protective gloves and splash shields

(5) Operation manual

(6) Calibration certificate

Test Procedures

(1) Take 3 samples from the finished protective clothing, each with a diameter of 32 mm

(2) Mount the sample in the holder with the reagent contact from below

(3) Pressurize the reagent continuously and steadily at a controlled rising rate (60 ± 3 cm/min)

(4) Observe the sample until the third liquid drop appears

(5) Record the height of the liquid column as the sample’s static pressure resistance

(6) Repeat each sample test 3 times and calculate the arithmetic average for final static pressure value

Maintenance Information

(1) Rinse and clean the liquid column, sample holder, and surrounding area after each test

(2) Inspect column, valves, and sample holders for corrosion or wear

(3) Store the instrument in a clean, dry, and ventilated laboratory environment

(4) Wear protective equipment when handling corrosive liquids

(5) Calibrate liquid column height and rising rate regularly for accurate measurements

(6) Maintain records of calibration, testing, and maintenance for compliance verification