About Filteres Membranfor microbiological analysis
Properties
| Related Categories | Filter membranes for microbiological analysis, Filtration,Filtration Supplies, Labware, Manufacturer Browser |
| material | cellulose acetate/cellulose nitrate mixed esters both filters |
| mfr. no. | Millipore HAWG047S6 |
| | Millipore, HAWG047S6 |
| | Millipore, HAWG047S6 |
| | Millipore, HAWG047S6 |
| pore size | 0.45 m (HA) |
Description
General description
Filter type HC, 0.7 m pore size, is designed for improved recovery of stressed fecal coliform organisms, especially those found in chlorinated effluents. The larger pore size permits faster filtration if the water sample has a higher particulate burden.
Both filters are cellulose acetate/cellulose nitrate mixed esters.
S-Kit includes filter membrane plus absorbent pad, sterile, individually sealed, packed in 100s in dispenser tubes.
S-Pak includes filter membrane, sterile, individually sealed.
Filter type HA, 0.45 m pore size, is designed to give complete retention and maximum recovery of total coliforms and fecal coliform bacteria. Complies with applicable U.S. EPA Standard methods and ASTM specifications for membrane filters used for drinking water analysis.
High-Efficiency Microbial FiltrationEngineered from cellulose nitrate, these membrane filters are effective for capturing microorganisms during water and sterility testing. Their specified pore sizes-0.22 m and 0.45 m-contribute to high retention and accuracy, integral for a range of analytical laboratory methods.
Adaptable to Laboratory DemandsAvailable in both sterile and non-sterile forms, each round filter (47 mm diameter) can process up to 250 mL per batch. The membranes are temperature-resistant up to 130C and can operate under a maximum pressure of 5 bar, ensuring reliability for various testing procedures.
User-Centric Packaging and DesignThese filter membranes are provided individually or in boxes of 100, allowing flexibility in inventory management. Their hydrophilic nature, smooth or gridded surfaces, and easy manual operation guarantee swift setup and efficient throughput in any laboratory setting.
FAQ's of Filteres Membranfor microbiological analysis:
Q: How do I select the appropriate pore size for my microbiological analysis?
A: Choose a 0.22 m membrane for finer retention, suitable for filtering bacteria and smaller microorganisms, or opt for 0.45 m when targeting larger microbes or particles. Selection depends on the specific protocol and regulatory requirements of your laboratory testing.
Q: What are the main benefits of using cellulose nitrate membrane filters for water testing?
A: These filters offer high microbial retention, fast flow rates, and are hydrophilic for efficient sample filtration. Sterile variants prevent contamination, and their temperature and pressure resistance make them ideal for reliable, repeatable results in water and sterility testing.
Q: When should I use a sterile versus a non-sterile membrane filter?
A: Sterile membrane filters should be used when testing samples where contamination control is critical, such as sterility assessments. Non-sterile filters are suitable for general analysis where sterility is not a primary concern.
Q: Where can I use these membrane filters in the laboratory process?
A: These filters are suitable for manifold filtration setups, vacuum filtration, and standard laboratory filtration assemblies. Their 47 mm diameter fits universally in most microbiological and water quality testing apparatuses.
Q: What is the process for handling and installing these membrane filters?
A: With an easy manual control design, handling involves placing the membrane on the filter base using sterile forceps, securing it, and then passing your sample solution through under controlled pressure or vacuum. The hydrophilic properties help facilitate smooth installation and reduced sample loss.
Q: How does packaging format impact daily laboratory workflow?
A: Individually packed membranes minimize contamination risks and streamline usage, while bulk boxes of 100 filters optimize throughput in high-volume labs. The right packaging choice supports both small-scale and large-scale laboratory activities efficiently.