Hawach Filter Supplies
Hawach is a high-tech enterprise of filter supplies located in Xi’an, China, specializing in the production and sales of syringe filters, lab filter paper, and filter membranes. The company is also known as a reliable supplier of other laboratory consumables, like pipette tips, PCR tubes, etc.
Showcase of Hawach Filter Supplies
Select Guide of Hawach Filter Supplies
How to Choose Hawach Micron Syringe Filter?
Nylon Syringe Filter
Features: Hydrophilic;
Resistant to some organic solvents;
Not resistant to strong acids;
High protein binding capacity;
Uses: Clarification and sterilization of
aqueous and organic solutions;
HPLC sample preparation;
Isolation of Legionella
Hydrophobic PTFE Syringe Filter
Features: Hydrophobic Polytetrafluoroethylene;
Resistant to organic solvents and strong acids;
Has low protein binding capacity;
Uses: Used for anhydrous sample filtration,
strong acid and alkali and
other corrosive solutions.
Hydrophilic PTFE Syringe Filter
Features: Hydrophilic Polytetrafluoroethylene;
Compared with hydrophobic PTFE,
the biggest feature is that it’s hydrophilic.
Uses: Used for corrosive solutions
such as aqueous solutions,
strong acids, and bases.
Glass Fiber Syringe Filter
Features: Glass Fiber; Partially hydrophobic;
Coarse filtration properties,
generally used as a pre-filter material,
cannot filter hydrofluoric acid.
Uses: Coarse filtration processes
such as pre-filtration
Hydrophobic PVDF Syringe Filter
Features: Hydrophobic;
Highly tolerant (secondary to PTFE),
fast flow rate;
Low protein binding.
Uses: Protein recovery and HPLC sample preparation.
PP Syringe Filter
Features: Polypropylene; Partially hydrophobic;
Strong corrosion resistance
(secondary to PTFE);
Low protein binding;
Uses: Protein recovery;
Pre-and final filtration;
Ion chromatography;
HPLC sample preparation for low detection levels.
MCE Syringe Filter
Features: Hydrophilic Mixed Cellulose;
Higher protein binding capacity than CA;
Cannot be used for protein extraction;
High porosity allows for faster flow rates;
Suitable for water-based samples.
Uses: Clarification and disinfection of aqueous solutions;
Filtration of gas particles and bacteria;
Filtration of alcohol and particulate bacteria
PES Syringe Filter
Features: Hydrophilic Polyethersulfone;
Ultra-low protein binding
capacity and low extraction rate;
faster flow rate than PTFE and PVDF
Uses: For sterilization and filtration of
enzymes and proteins;
Extraction of biological fluids and
blood samples and tissue culture;
Biological and clinical analysis;
Filtration and sterilization of pharmaceuticals
Cellulose Acetate Syringe Filter
Features: Hydrophilic Cellulose Acetate;
Low protein binding;
Limited resistance to organic solvents;
Excellent throughput.
Uses: Filtration of proteins and enzymes;
Protein recovery;
Diagnostic cytology;
Biological and clinical analysis,
sterilization of tissues and media.
How to choose Hawach filter paper?
No. 1 Qualitative Filter Paper
Filtration Speed: Medium
Pore sizes: 11μm
Liquid filtration
Soil test
Air pollution monitoring
No. 2 Qualitative Filter Paper
Filtration Speed: Medium
Pore sizes: 8μm
Determination of vitamin C in food
Soil test
Air pollution monitoring
No. 4 Qualitative Filter Paper
Filtration Speed: Fast
Pore sizes: 20μm
Determination of vitamin C in food
Biological liquids or organic extracts
Determination of volatile acids in oils and fats
No. 5 Qualitative Filter Paper
Filtration Speed: Slow
Pore sizes: 2.5μm
Clarifies cloudy suspensions and water
Soil test
No. 6 Qualitative Filter Paper
Filtration Speed: Slow
Pore sizes: 3μm
Filter fat
Filtered boiler water before titration analysis
No. 91 Wet Strengthened Filter Paper
Filtration Speed: Medium
Pore sizes: 10μm
Analysis of sucrose components in cane sugar.
Widely used for routine sample filtration in pharmaceutical laboratories.
No. 113 Wet Strengthened Filter Paper
Filtration Speed: Fast
Pore sizes: 30μm
Suitable for filtration of large particles or filtration of gelatinous precipitates.
Vacuum filtration of viscous liquids.
No. 40 Quantitative Filter Paper
Filtration Speed: Medium
Pore sizes: 8μm
Monitoring of air pollutants.
Multi-component gravimetric analysis of cement, clay, steel and stainless steel products.
No. 41 Quantitative Filter Paper
Filtration Speed: Medium
Pore sizes: 8μm
Filtration of coarse particles and gel precipitates
Filter digestion solution for spectroscopic, chromatographic, or mass spectrometry analysis
No. 42 Quantitative Filter Paper
Filtration Speed: Slow
Pore sizes: 2.5μm
Specific gravity analysis of precipitates such as barium sulfate, stannic acid, and finely precipitated calcium carbonate.
Filter gasoline or organic solvents.
No. 43 Quantitative Filter Paper
Filtration Speed: Medium
Pore sizes: 16μm
Food analysis
Soil analysis
Inorganic analysis for construction, mining, and steel industries
No. 44 Quantitative Filter Paper
Filtration Speed: Slow
Pore sizes: 3μm
Very fine particles are retained.
Fine particle size filtration, such as barium sulfate, metastannic acid, cuprous oxide, etc.