เครื่องทดสอบความต้านทานการไหลของอากาศของหน้ากาก ISO9237 ใช้วิธีการสร้างแรงดันแตกต่าง
- คำอธิบาย
- สอบถามรายละเอียดเพิ่มเติม
คำอธิบาย
ISO9237 Mask Airflow Resistance Tester Use Differential Pressure Method
การแนะนำ
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, หนัง, ผ้า, ผ้า, กระดาษ, cardboard or other flaky objects.This instrument is a fully integrated and automated instrument.
มาตรฐาน: yy0469-2011 medical surgical mask, YY/T 0699-2013 disposable medical mask
BSEN 14683:2019 ISO9237, กิกะไบต์/T458, iso5636/2, คิวบี/T1667, กิกะไบต์/T22819, กิกะไบต์/T23227, ISO2965, YC/T172, GB/T12655, ฯลฯ.
เครื่องทดสอบความต้านทานการไหลของอากาศของหน้ากาก ISO9237 ใช้วิธีการสร้างแรงดันแตกต่าง
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.
ISO9237 Mask Airflow Resistance Tester Use Differential Pressure Method
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.
ISO9237 Mask Airflow Resistance Tester Use Differential Pressure Method
ข้อกำหนดทางเทคนิค
| ช่วงการวัด | 0~200 (Pa/ cm²) 0～400L/dm²/min |
| หน่วย | Pa/ cm² Pa L/dm²/min μm/(ปา•ส) mm/s m/s |
| ความแม่นยำ | 0.01 (Pa/ cm²) 0.1ป้า 0.01 L/dm²/min |
| Error | <1% |
| Measure error | 4.9ซม.² |
| Test airflow（Mask） | 8ลิตร/นาที |
| Test pressure difference range | 0-2000ป้า |
| น้ำหนัก | 25กิโลกรัม |
| ขนาด | 420×340×480mm |
ISO9237 Mask Airflow Resistance Tester Use Differential Pressure Method
หลักการทดสอบ:
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.
ISO9237 Mask Airflow Resistance Tester Use Differential Pressure Method
คุณสมบัติของสินค้า
The instrument chip and sensor are imported from the United States, the test results are accurate, การทำซ้ำที่ดี, ความแม่นยำสูง.
The calibration of pressure sensor and flow sensor is traceable.
การออกแบบที่ประณีต: the instrument USES microcomputer technology, กระบวนการทดสอบเป็นแบบอัตโนมัติทั้งหมด, รวดเร็วและแม่นยำ แสดงผลหน้าจอ LCD แบบสัมผัส, และมีฟังก์ชันการบันทึกและประมวลผลข้อมูล, ด้วยงานพิมพ์.
(3) ประสิทธิภาพที่เหนือกว่า: 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.
ง่ายต่อการใช้, high automation: the traditional breathability tester test is not only slow and laborious, on the contrary, the breathability tester test is automatic and fast, 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, are effectively avoided in this instrument.
