Leather Water Vapor Permeability Tester

Product information

The vapor permeability of leather is evaluated by means of measuring the weight of water-vapor that permeates to specimen per unit time and per unit area. The main functional components includes: testing holder clamp, ventilation fan, control panel with functions of switch, time setting and recording.

The machine has six separate test stations on a rotary table and each one has a sample holder. Silica gel desiccant is placed in the holder and the test material is placed over the neck of the holder and secured by a screw top. After weighing each holder, complete with silica gel and sample material, the holders are placed and locked into the rotary mechanism. After 7-8 hours the complete holder is weighed again and the gained weight is used to determine the degree of permeability. It is essential that the entire operation is carried out in a conditioned atmosphere of 20°C and 65% per cent relative humidity. In addition to the standard equipment, the tester is also supplied with a built-in timer to record the number of hours that testing has been carried out.

Standards

UNI EN IUP/15: Italian standard for testing the puncture resistance of safety footwear.

UNI EN 13515: European standard specifying abrasion resistance tests for protective footwear soles.

EN ISO 20344:6.6: International standard defining puncture resistance testing methods for safety shoes.

IUP 15: Standard for evaluating puncture-resistant properties of footwear materials.

BS 3144 Method 24: British standard for abrasion resistance testing of leather and footwear components.

SLP 25: Standard protocol for assessing safety shoe durability under repetitive stress.

DIN 53333: German standard for puncture resistance measurements in protective footwear.

ISO 17699: International standard for footwear safety, including puncture and impact resistance.

DIN 53 429: German method for abrasion resistance testing of rubber and plastics in footwear.

METODO - 309 WI 009: Brazilian standard for puncture resistance evaluation in safety footwear.

Applications

Leather Water Vapor Permeability Tester is mainly applicable to leathers and textiles used in footwear uppers and clothing where it gives a measure of the ability to remove perspiration from the surface of the wearer's skin.The tester is used to determine the amount of water vapour a material will transmit through its structure in a specified time.

Technical Parameters

Test stations: 6;

Electronic timer for recording the testing times;

The fan blade: 3;

Dimension of fan blade: 75×90mm;

Angle between fan blades: 120°;

Gaps: 10±5mm;

Speed of fan: 1400r/min;

Rotary speed of specimen: 75r/min;

Diameter of sample holders: 30±1mm;

Diameter of fixtures: 30±1mm, helical;

Weight: 45kg;

Dimension: 350×570×450mm;

Power Consumption: 300W.

YouTube video introduction:https://www.youtube.com/watch?v=Tm74iaorZCM&pp=0gcJCa0JAYcqIYzv