Spring Biochem

Membrane


Filters

Membrane

Product Details

Cellulose Nitrate Membrane Filter - Type C

Cellulose Nitrate Membrane Disc Filters are hydrophilic, non-media, migrating, biologically inert, plain white absolute membrane filter available in wide range of pore size from 0.22 µm to 8.0 µm.

Features and Benefits
  • Absolute retention
  • High flow rates
  • Narrow pore size distribution
  • Low extractable levels
Specifications
Pore Size 0.22µm 0.45µm 0.8µm 1.2µm 5.0µm
Diameter 13mm, 25mm, 47mm, 90mm, 142mm, 293mm
Water Flow Rate (ml/min/cm²) at ΔP = 10psi, 20°C 20 46 259 364 780
Retention Efficiency 0.22µm: LRV > 7 for br. diminuta
Sterilisation Autoclavable at 121°C in dry condition.
Maximum Operating Temperature 80°C continuous
Maximum Operating Pressure 3 Kg/cm2
Biosafety Passes the Biological tests for Class VI plastics as described in USP
Oxidizable Matter Passes as per USP
Integrity Test Data
Pore Size Wetting Fluid Bubble Point
0.22µm Water 52psi 3.65 kg/cm²
0.45µm Water 33psi 2.32 kg/cm²
0.8µm Water 14psi 0.98 kg/cm²
Applications:
  • Sample Preparations
  • Microbiological studies
  CN
Pore Size (µm) 0.22, 0.45, 0.8, 1.2, 3, 5
Diameter (mm) 13, 25, 47, 90, 142, 293

Gridded Cellulose Nitrate Membrane Disc Filters - GCN

GCN membranes are made of Cellulose Nitrate, a material which assures effective retention with high flow rates. These membranes are useful for water microbiology. A grid is printed on the surface to facilitate of colonies.

Features and Benefits:
  • High flow rates
  • Non-inhibiting ink grids
  • Validated for microbial recovery
Applications:

GCN membranes are useful for water microbiology. The printed grid eases the counting of bacterial colonies, micro colonies etc., and in no way influences the growth of bacteria.

Ordering Information:
Type Pore Size(µm) Diameter Pack Size
GCN 0.2, 0.45 25 mm
47 mm
100
100

Edge Hydrophobic Membrane Disc Filter - Type EHCN

EHCN Membrane are used for sterility testing of antibiotics & drugs containing bacteriostats .6 mm rim is hydrophobic & rest of the membrane is hydrophilic. The Hydrophobic edge does not allow drug to seep under the rim of the filter holder. This ensures complete removal of the drug during flushing so that growth of any micro-organisms which have been retained on the membrane is not inhibited due to the residual drug, improving the sensitivity and reliability of the test. EHCN filter are available in 0.45 m pore size and 47 mm diameter.

Specifications:
Pore Size 0.45µm
Diameter 47mm
Water Flow Rate (ml/min/cm²) at ΔP = 10psi, 20°C 20 ml/min. /cm²
Sterilisation Autoclavable at 121°C
Maximum Operating Temperature 80°C continuous
Maximum Operating Pressure 3 Kg/cm²
Biosafety Passes the Biological tests for Class VI plastics as described in USP.
Oxidizable Matter Passes as per USP.
Integrity Test Data :
 Wetting Fluid Bubble Point
0.45µm Water 33psi 2.32 g/cm²
Ordering Information :

Nylon-66 Membrane Filter - Type NN

Nylon Membrane Disc Filter are double layered hydrophilic, on media migrating, biologically inert, flexible, durable, plain white absolute membrane filter offering wide chemical compatibility.

Features and Benefits:
  • Absolute retention
  • Wide Chemical Compatibility (Compatible too many solvents & alkali solutions - pH Range 3-14)
  • No extractable.
  • High heat resistance
  • Base of handling
Specifications:
Type EHCN EHCNS
Pore Size (µm) 0.45 0.45
Diameter (mm) 47 47
Pack Size (No.) 100 100
Pore Size 0.22µm 0.45µm 0.8µm 1.2µm
Diameter 13mm 25mm 47mm 90mm142mm 293mm
Water Flow Rate (ml/min/cm²) at ΔP = 10psi, 20°C 14.5 38.5 125 187
Retention Efficiency 0.22µm: LRV > 7 for br. diminutive
Sterilisation Autoclavable at 121°C for 5 cycles.
Maximum Operating Temperature 80°C continuous
Maximum Operating Pressure 3 Kg/cm²
Biosafety Passes the Biological tests for Class VIplastics as described in USP.
Extractable with Water Within Limits specified in USP.
Oxidizable Matter Passes as per USP.
Integrity Test Data:
Pore Size Wetting Fluid Bubble Point
0.22µm Water 52psi 3.65 kg/cm²
0.45µm Water 33psi 2.32 kg/cm²
0.8µm Water 14psi 0.98 kg/cm²
Ordering Information:
Type NN
Pore Size (µm) 0.22, 0.45, 0.8, 1.2, 3, 5
Diameter (mm) 13, 25, 47, 90, 142, 293

Nylon-66 Membrane Disc Filter - Type HNN

HNN Membrane Disc Filter are hydrophilic, biologically inert, non media migrating, plain white absolute membranes. Recommended for filtration, Sterilisation & clarification of mobile Phase in HPLC Processes with aqueous, alkaline & organic samples.

Features and Benefits:
  • Wide Chemical Compatibility
  • Low extractable.
  • HPCL Certified - Assures that filter ill not add artefacts to the sample.
Specifications:
Pore Size 0.22µm 0.45µm
Water Flow Rate (ml/min/cm²) at ΔP = 10psi, 20°C 14.5 38.5
Diameter 13mm, 25mm, 47mm
Sterilisation Autoclavable at 121°C for 5 cycles.
Maximum Operating Temperature 80°C continuous
Maximum Operating Pressure 3 Kg/cm²
Biosafety Passes the Biological tests for Class VIplastics as described in USP.
Extractable with Water Within Limits specified in USP.
Oxidizable Matter Passes as per USP.
Ordering Information
Type HNN
Pore Size (µm) 0.22, 0.45
Diameter (mm) 13, 25, 47