Merck
All Photos(2)

Documents

GTBP02500

Millipore

Polycarbonate Membrane Filter, 0.22 μm Pore Size

Isopore, filter diam. 25 mm, hydrophilic, brown

Sign Into View Organizational & Contract Pricing

Synonym(s):
Isopore Membrane Filter
eCl@ss:
32031602
NACRES:
NB.24

material

brown filter
plain filter
polycarbonate membrane

sterility

non-sterile

feature

hydrophilic

manufacturer/tradename

Isopore
Millipore

parameter

140 °C max. temp.
6 mL/min-cm2-psi water flow rate (maximum flow rate per 1.0 psi)
~16 mL/min-cm2 water flow rate at 10 psi (typical results)

filter diam.

25 mm

thickness

25 μm

gravimetric extractables

<1%

color

brown

refractive index

n/D 1.6

matrix

Isopore

pore size

0.22 μm pore size
5-20 % porosity

bubble point

≥5.2 bar, air with water at 23 °C

shipped in

ambient

Looking for similar products? Visit Product Comparison Guide

Compare Similar Items

View Full Comparison

Show Differences

1 of 4

This Item
GTBP01300GTBP04700GTTP01300
sterility

non-sterile

sterility

non-sterile

sterility

non-sterile

sterility

non-sterile

feature

hydrophilic

feature

hydrophilic

feature

hydrophilic

feature

hydrophilic

manufacturer/tradename

Isopore, Millipore

manufacturer/tradename

Isopore, Millipore

manufacturer/tradename

Isopore, Millipore

manufacturer/tradename

Isopore, Millipore

parameter

140 °C max. temp., 6 mL/min-cm2-psi water flow rate (maximum flow rate per 1.0 psi), ~16 mL/min-cm2 water flow rate at 10 psi (typical results)

parameter

140 °C max. temp., 6 mL/min-cm2-psi water flow rate (maximum flow rate per 1.0 psi), ~16 mL/min-cm2 water flow rate at 10 psi (typical results)

parameter

140 °C max. temp., 6 mL/min-cm2-psi water flow rate (maximum flow rate per 1.0 psi), ~16 mL/min-cm2 water flow rate at 10 psi (typical results)

parameter

0.007 L/min-cm2-psi air flow rate, 140 °C max. temp., 3.36 mL/min-cm2-psi water flow rate (maximum flow rate per 1.0 psi), ~16 mL/min-cm2 water flow rate at 10 psi (typical results)

pore size

0.22 μm pore size, 5-20 % porosity

pore size

0.22 μm pore size, 5-20 % porosity

pore size

0.22 μm pore size, 5-20 % porosity

pore size

0.22 μm pore size, 13.8 % porosity

General description

Filter Code: GTBP
Filter Type: Screen filter
The Isopore membrane is a polycarbonate, track-etched screen filter recommended for all analyses in which the sample is viewed on the surface of the membrane. Isopore membrane offers distinct advantages for the analysis of airborne contaminants and other particles using optical or electron microscopy. The Isopore membrane is composed of polycarbonate film, which has a smooth, glass-like surface for clearer sample observation. The unique manufacturing process of the membrane ensures a precise pore diameter and a consistent pore size for accurate separation of samples by size. Matched-weight filters are not usually required because of low, constant tar and ash weights.

Features & Benefits:
•Membrane structure retains particles on the surface, simplifying counting and analysis
•Isopore membranes do not stain, resulting in low background interference
•Non-hygroscopic, allowing for rapid drying and reduced sample analysis time
•Translucent material does not require clearing for transmitted light microscopy; also available in brown variety

Applications:
Air Monitoring, Epifluorescent Microscopy, Chemotaxis Assays

Application

  • Epifluorescent microscopy
  • Particle monitoring
  • Air monitoring
  • Microplastics analysis
  • Microplastics analysis grade water

Caution

Possible reduction in flow rates may occur after autoclaving.

Legal Information

ISOPORE is a trademark of Merck KGaA, Darmstadt, Germany

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Documents related to the products that you have purchased in the past have been gathered in the Document Library for your convenience.

Visit the Document Library

Difficulty Finding Your Product Or Lot/Batch Number?

Product numbers are combined with Pack Sizes/Quantity when displayed on the website (example: T1503-25G). Please make sure you enter ONLY the product number in the Product Number field (example: T1503).

Example:

T1503
Product Number
-
25G
Pack Size/Quantity

Additional examples:

705578-5MG-PW

PL860-CGA/SHF-1EA

MMYOMAG-74K-13

1000309185

enter as 1.000309185)

Having trouble? Feel free to contact Technical Service for assistance.

Lot and Batch Numbers can be found on a product's label following the words 'Lot' or 'Batch'.

Aldrich Products

  • For a lot number such as TO09019TO, enter it as 09019TO (without the first two letters 'TO').

  • For a lot number with a filling-code such as 05427ES-021, enter it as 05427ES (without the filling-code '-021').

  • For a lot number with a filling-code such as STBB0728K9, enter it as STBB0728 without the filling-code 'K9'.

Not Finding What You Are Looking For?

In some cases, a COA may not be available online. If your search was unable to find the COA you can request one.

Request COA

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service