The environmental air quality data we see in our daily lives come
from monitoring stations located throughout various regions. The
instruments used by these monitoring stations are part of an
atmospheric environment online monitoring system, which utilizes
scattering and β-ray methods to monitor and analyze particulate
matter and other harmful gases in the environment, transmitting the
data through the Clould hub.
Among these, the β-ray method is a very precise way of monitoring
particles. This method operates on the principle of β-ray
attenuation; ambient air is drawn into a sampling tube by a sample
pump, filtered, and then expelled, with particles depositing on the
filter membrane. When β-rays pass through the filter membrane laden
with particles, their energy attenuates. By measuring this
attenuation, the concentration of particles can be calculated. TSP
samplers are designed to collect particulate matter with an
aerodynamic equivalent diameter of less than or equal to
100μm,which includes all solid and liquid particles suspended in
the air.Glass fiber membranes have the following characteristics and are
widely used in β-ray particle monitoring instruments, making them
an essential consumable membrane in particle monitoring.
Features
- High filtration efficiency
- Retention of fine particles
- High temperature resistance
- High flow rate
- Large particle load capacity
Two types of Glass fiber : with binder and without binder
XINNA's glass fiber membranes are made of 100% boronsilicate glass
microfibers and feature high flow rates, high retention rates, and
a large particle load capacity. They come in two types: with binder
and without binder.Both of them can be sterilized by EO, gamma, or
autoclave (121 °C at 1 bar).
The version without binder can withstand high temperatures of up to
500°C and is suitable for trace organic chemical analysis. It is
applicable for monitoring and sampling pollutants such as TSP
(Total Suspended Particulate), PM10, PM2.5, radioactive particles,
and automobile exhaust particulates in the air.
The version with binder have superior wet strength and are
excellent for qualitative analysis and prefiltration, especially
for heavily contaminated liquids. They are also widely used for
clarification of aqueous solutions.
Specification of binderless glasss fiber
| Product Name | Glass Fiber Membrane |
| Material | Pure borosilicate glass fiber |
| Pore Size | 1.5μm (1.5 to 20μm for options) |
| Air flow rate | ≧60L/min/cm2@70Kpa(1.5 μm) |
| Thickness | 330 – 380μm |
| Maximum temperature | 500℃ |
Other applications
- Gas venting filter
- Air venting in IV infusion sets
- Disposable Masks and Respirators
- Precipitating proteins and cell filtration
