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Gurley Porosity Apparatus - OpTest

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Gurley Porosity Apparatus

To determine the paper porosity according to Gurley method

Product Name Gurley Porosity Apparatus
Product Code PTA-1704XX
Standards/Methods TAPPI T 460, ISO 5636-5, PAPTAC D14, SCAN P19, BS 6538/3, BS5926, ASTM D726-58
Test Material Paper
Manufacturer The PTA Group (PTA)
Availability from OpTest Exclusive to Canada, USA, and Mexico

Manual 170402


Gurley original porosity equipment.
Easy handling and precision.
Graduated cylinder 20 oz. and a measurement diameter of 1 inch².
Manual operation with external timer for time control (not supplied).
CE Mark
Dimensions (W x L x H - equipment only: 400 x 250 x 430 mm
Weight (equipment only / with packaging): 10 kg / 13 kg


APPLICATIONS:
To determine the air resistance of insulating materials.
The simple model includes a 20 ounces cylinder, a lower clamping plate of 1.0 square inch of orifice passage of air and an upper adapter.
The cylinder is graduated per 50 cc for a total of 300 cc.
As in all modern porosimeters, the contact pressure is adjusted by turning a knob which raises and locks the lifting assembly and the clamping plate.
Optionally equipped with Digital Module to control with great accuracy the time in seconds of the passage of air through the sample.


SPECIFICATIONS:
This is the traditional and most popular model for measuring the porosity and air permeability values.
The air pressure is produced by an inner cylinder of a specific diameter and normalized weight, which floats freely in the other outer cylinder partially filled with oil which acts as a sealant of air. The sample of the test material is held by clamping plates having a circular orifice of 1.0 square inch (standard) or 0.25 or 0.1 square inches (optional).
Porosimeter readings can be evaluated directly or indirectly depending on the material and the aims of the trial. Directly when tested the ability of the resistance to airflow through a material. Indirectly, when one wants to measure other physical properties affecting the passage of air through a porous sheet.

 

Automatic 170406


Automated original Gurley instrument.
Easy operation and high measurement accuracy.
Graduated cylinder of 20 oz. and a measurement diameter of 1 inch².
Pneumatic elevation of the inner cylinder.
Full colour 4 ¨ touch screen from which the total control of the instrument can be managed.
Full statistics: maximum and minimum values, mean value and standard deviation.
RS232 & USB connections to PC and printer.
CE mark.
Dimensions (W x L x H - equipment only: 400 x 250 x 430 mm
Weight (equipment only / with packaging): 10 kg / 13 kg

 

APPLICATIONS:
In papermaking and printing, to select materials that provide a suitable degree of ink absorption.
For determining the air resistance of insulating materials.


SPECIFICATIONS:
This is the more traditional and popular instrument for measuring the porosity and air permeability in materials with intermediate values. May also be tested materials of lower air permeability, using smaller diameter hole measuring plates.
The air pressure is produced by an inner cylinder of specific diameter and standardized weight, floating freely in an outer cylinder partly filled with oil serving as air sealing.

 
The sample of the test material is held by clamping plates having a circular orifice of 1.0 square inch (standard) or 0.1 or 0.25 square inches (optional).
Porosimeter readings can be evaluated directly or indirectly depending on the material and the objectives of the test. Directly when the capacity of resistance to airflow through a material is tested. Indirectly, when it is wanted to measure other physical properties that affect the passage of air through a porous sheet.


SUPPLY:
The standard model includes a 20 ounces cylinder and a lower clamping plate of 1.0 square inch of air hole and an upper adapter.
The 20 ounces cylinder is graduated in 25 cc for the initial two spaces and 50 cc for each of the other spaces, up to a total of 300 cc.

 

 

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