A device for measuring the air permeability of textile materials MT-160. GOST 12088-77, GOST ISO 9237-2013 (VPTM-2 type)

Mechanical testing of materials

A device for measuring the air permeability of textile materials MT-160. GOST 12088-77, GOST ISO 9237-2013 (VPTM-2 type)

Device for measuring air permeability MT 160 (type VPTM.M, VPTM-1, VPTM-2, VPTM-3, VPTM-4) is designed to measure the air permeability of textile materials and products from them in accordance with GOST 12088-77, GOST ISO 9237-2013. Device is used in testing laboratories at light industry enterprises, in standardization and certification centers to determine the breathability of various types of textile materials, including technical fabrics, non-woven materials, felt, artificial fur, knitted fabrics and finished textile products.

The principle of operation of the device is based on the discharge of air in the measuring unit using a pump, the pressure drop during the passage of air through the sample is maintained constant, and the flow rate of air passing through a given area of the material under test per unit time is measured.

Specifications

Characteristics

Unit

Values

Air permeability measurement range

dm3/(m2s)

Channel 1: 2,5-30

Channel 2: 2,5-180

Channel 3: 2,5-600

Channel 4: 2,5-4500

Air flow measuring range

dm3/h

Channel 1: 4-60

Channel 2: 30-360

Channel 3: 120-1200

Channel 4: 800-8000

Nominal pressure drop across the sample

mm H2O

(Pa)

5ᄆ0,1; (10ᄆ0,2)**;

(20ᄆ0,4)**; (50ᄆ1,0)**;

49ᄆ0,98; (98ᄆ1,96)** (196ᄆ3,92)**; 490ᄆ9,8)**.

Limits of permissible reduced error in measuring air flow

%

ᄆ2

Variation of indications of the error in flow rate at the control point, no more than

%

2

Limits of permissible reduced error in measuring differential pressure

%

ᄆ 2

Interchangeable table opening diameter

mm

16ᄆ 0,05***; 25,3ᄆ 0,05

35,7ᄆ 0,05***; 50,5ᄆ 0,05

79,8ᄆ 0,05; 112,9ᄆ0,05***

Nominal opening area of changeable stages of the measuring unit

cm2

2ᄆ 0,1***; 5ᄆ 0,1;

10ᄆ 0,1***; 20ᄆ 0,1;

50ᄆ 0,1; 100- 0,1***

Nominal clamping force of the sample in the measuring block

N

147ᄆ4,9

Operating temperature range

º￑

20 ᄆ 5

Dimensions, no more than

mm

480�230�640

Recommended sample size

mm

110�110

Weight, no more than

kg

15

Power consumption, no more than:

W

70

Power supply

V

~220 +10% /-15%


* - when the device is supplied with a full set of interchangeable tables
**- sensor model for a given pressure drop is set at the request of the customer
*** - interchangeable tables with a given hole diameter are manufactured at the request of the customer

Device package

1.

Device for measuring the air permeability MT-160

1 pc.

2.

Interchangeable tables with clamping rings

3 sets

6 sets at Client's request

3.

Devices for measuring the air permeability MT 160. Instruction manual. 4213. 000.00.01 RE.

1 copy

4.

Insert with a calibrated hole

2 pc.