GA-2504 Mask Airflow Resistance Tester

Description

Mask Airflow Resistance Tester

Standard:

yy0469-2011 medical surgical mask, YY/T 0699-2013 disposable medical mask

T/CNTAC 55—2020、T/CNITA 09104—2020《Sanitary mask for civilian use》

BSEN 14683:2019 ISO9237, GB/T458, ISO5636/2, QB/T1667, GB/T22819, GB/T23227, ISO2965, YC/T172, GB/T12655, etc..

Mask Airflow Resistance Tester

Introduction

The computer breathability tester adopts the latest technology and the most common testing method, which is ideal for testing the breathability of all kinds of masks, cuir, cloth, tissu, papier, cardboard or other flaky objects.This instrument is a fully integrated and automated instrument.

Mask Airflow Resistance Tester

Caractéristiques du produit

(1)The instrument chip and sensor are imported from the United States, les résultats des tests sont exacts, bonne répétabilité, haute précision.

The calibration of pressure sensor and flow sensor is traceable.

(2)Exquisite design: l'instrument UTILISE la technologie des micro-ordinateurs, the test process is completely automated, Rapide et précis. Résultats d'affichage LCD à écran tactile, and with data recording and processing functions, with printout.

(3) une performance supérieure: compared with the traditional breathability meter, this instrument has a very high advantage, the low breathability of the paper, can be set higher pressure difference, and the high breathability of the paper can be set lower pressure difference, easy and accurate determination of the results.

(4)Facile à utiliser, haute automatisation: le test traditionnel du testeur de respirabilité n'est pas seulement lent et laborieux, au contraire, le test du testeur de respirabilité est automatique et rapide, at the same time the accuracy of the test results has been guaranteed.Misoperation or low reproducibility of test results, which are caused by poor instrument design and manufacturing techniques, sont effectivement évités dans cet instrument.

Spécifications techniques

Measure range	0~200 (Pa/ cm²) 0～400L/dm²/min
Unité	Pa/ cm² Pa L/dm²/min μm/(Pa•s) mm/s m/s
Précision	0.01 (Pa/ cm²) 0.1Pennsylvanie 0.01 L/dm²/min
Erreur	<1%
Measure error	4.9cm²
Test airflow（Mask）	8L/min
Test pressure difference range	0-2000Pennsylvanie
Poids	25kg
Taille	420×340×480mm

Principle of respirator resistance test:

The gas flow rate was adjusted to 8L/min for the test, the diameter of the sample test area was 25mm, and the experimental area was 4.9cm. The pressure difference was calculated, and the result was reported as the pressure difference per square centimeter.

Mask Airflow Resistance Tester

Testing principle of fabric permeability:

Based on the principle design of differential pressure method, the preprocessed sample is placed between the upper and lower measuring surfaces, and a constant differential pressure is formed on both sides of the sample. Under the effect of differential pressure, the gas flows from the high-pressure side to the low-pressure side through the sample. The permeability of the sample is calculated according to the area, differential pressure and flow through the sample.Or a constant airflow is formed on both sides of the sample, the pressure difference between the two sides of the sample is recorded, and the permeability of the sample is calculated.

Principe du test:

Based on the principle design of differential pressure method, the preprocessed sample is placed between the upper and lower measuring surfaces, and a constant differential pressure is formed on both sides of the sample. Under the effect of differential pressure, the gas flows from the high-pressure side to the low-pressure side through the sample. The permeability of the sample is calculated according to the area, differential pressure and flow through the sample.Or a constant airflow is formed on both sides of the sample, the pressure difference between the two sides of the sample is recorded, and the permeability of the sample is calculated.