Mixed Cellulose Ester Membranes
Particulate Sampling Filters
Mixed Cellulose Ester Membranes A Gold Standard for IH Sampling
ABOUT MCE Filters and Nanoparticles NIOSH has been using the SKC Leland Legacy Sample Pump (pages 22-23) with 0.8-μm MCE filters for exposure assessments of engineered nanoparticles. After collection onto 37-mm MCE filters in open-face cassettes, particles are analyzed for particle morphology and elemental mass. Note that nanoparticles will not fall through the pores of the 0.8-μm MCE filters; the very intense activity of nanoparticles and their constant collision with other particles prevent them from going through the pores like a sieve. For more information, see NIOSH Publication No. 2009125, Approaches to Safe Nanotechnology: Managing the Health and Safety Concerns Associated with Engineered Nanomaterials at www.cdc.gov/niosh/docs/2009125/, download the PDF, and scroll to the Appendix on page 71, which contains the sampling information.
The standard filter for most particulate sampling in industrial hygiene applications, mixed cellulose ester (MCE or MEC) membrane filters are comprised of pure, biologically inert mixtures of cellulose acetate and cellulose nitrate. MCE membranes are naturally low in metal background and are compatible with dilute bases and acids and aromatic and aliphatic hydrocarbons. MCE filters are hydrophilic and autoclavable.
MCE Filters Diameter (mm) 25 25 25 25 25 25 37 37 37 37 37 37 37 47 47 47 102
Pore Size (μm) 0.45 0.8 0.8 0.8 1.2 1.2 0.45 0.45 0.8 0.8 0.8 1.2 5.0 0.45 0.8 1.2 0.8
Support Pad‡ No Yes No No No No No Yes No Yes No No No No No No No
† Recommended for use with the Button Sampler, see page 93
Notes
use with IOM (p. 92) black grid black grid
black grid
Cat. No. 225-1911 225-19 225-1930 225-1913 225-1912† 225-60F 225-1914 225-9 225-1939 225-5 225-334 225-1923 225-1938 225-506 225-504 225-1921 225-1916
Qty. 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 25
‡ Filter supports available on page 87
ACCU-CAP MCE Filter Cassette Inserts
ACCU-CAP Inserts Air with Contaminants Enters Here ACCU-CAP Cassette Insert
Cassette Inlet Section Fibers and Particles
Cellulose Pad
Cassette Outlet Section
ACCU-CAPs are clear static-dissipative PVC or dissolvable cellulose acetate domes heat-sealed to a filter to create a filter capsule. ACCU-CAPs fit between the parts of a two-piece cassette with support pad. Containment of the sample within the capsule prevents cassette wall losses. Use the PVC dome for gravimetric analysis; use the cellulose acetate dome for elemental analysis. ACCU-CAPS are designed to work with SKC cassettes.
Diameter (mm) 25 37 37
Pore Size (μm) 0.8 0.8 0.8
Dome Material static-dissipative PVC static-dissipative PVC dissolvable cellulose acetate
Notes
Preloaded in 2-pc cassette with support
Cat. No. 225-8506 225-8514 225-8517
Qty. 60 60 50
Matched-weight MCE Filters for Faster Gravimetric Determinations
Matched-weight MCE filter pairs are certified as matched in weight to within 50 μg. Load the filters into a cassette; the top filter collects the contaminant, the bottom filter acts as a control. No preweighing or conditioning is required. After sampling, both filters are weighed and the difference between weights is the sample weight.
Diameter (mm) 37 47
Filter Specifications MCE, 0.8 μm, matched-weight within 50 μg, filter pairs only* MCE, 0.8 μm, matched-weight within 50 μg, filter pairs only*
Cat. No. 225-532* 225-531*
Qty. 50 50
* Not preloaded in cassettes
76
www.skcltd.com
SKC Ltd.
Phone: +44 (0)1258 480188
Particulate Sampling Filters
Certified BestChek Asbestos Cassettes The Highest Standard for Cassette Reliability
ABOUT
SKC Certified BestChek Filters in Carbon-filled Polypropylene Cassettes All SKC preloaded asbestos filters include cellulose supports.
Diameter (mm) Filter Specifications 25 MCE, 0.8 μm
Cassette Description with cowl, banded
Cat. No. 225-321
Qty. 50
225-321A
50
225-326
50
25
MCE, 0.8 μm
25
MCE, 0.8 μm, black grid
with cowl, banded, with stand-up plug in outlet end with cowl, banded
25
MCE, 1.2 μm, black grid
with cowl, banded
225-1934
50
25
MCE, 0.45 μm* TEM analysis
with cowl, banded, with support and 5.0-μm diffuser pad
225-327
50
The 5 C’s of Asbestos Cassettes Only from SKC — BestChek® cassettes meet or exceed NIOSH, OSHA, and ASTM standards in Count, Clearing, Conductivity, Collection Area, and Construction.
Specify SKC BestChek Asbestos Cassettes — your assurance of reliability and accuracy.
* Available as microvacuum carpet cassette with nozzle, see far right
Preloaded MCE Filters Preloaded MCE Filters
All SKC preloaded filters include supports and are in SureSeal leak-free cassettes requiring a SureSeal Cassette Opener (see p. 88).
Diameter (mm) 25 25 37 37 37 37
Filter Specifications MCE, 0.8 μm MCE, 1.2 μm MCE, 0.45 μm MCE, 0.45 μm MCE, 0.8 μm MCE, 0.8 μm
Cassette Description 3-pc clear plastic, banded 3-pc black conductive, banded 3-pc black conductive, banded 4-pc clear styrene, banded 2-pc clear styrene, banded 3-pc clear styrene, banded 3-pc clear styrene, banded 3-pc clear styrene, not banded
Cat. No. 225-3100 225-507 225-1924 225-1925 225-508 225-3-01 225-3-01A 225-3-01NB
Qty. 50 50 50 50 50 50 500 50
Matched-weight MCE Filter Cassettes
All SKC preloaded filters include supports and are in SureSeal leak-free cassettes requiring a SureSeal Cassette Opener (see p. 88).
Diameter (mm) 25 37 37
Filter Specifications MCE, 0.8 μm, matched-weight within 50 μg MCE, 0.8 μm, matched-weight within 100 μg MCE, 0.8 μm, matched-weight within 50 μg
37
MCE, 0.8 μm, matched-weight within 50 μg
Cassette Description 2-pc clear styrene, banded 3-pc clear styrene, banded 2-pc clear styrene, banded
Cat. No. 225-525 225-3-02 225-502 225-527 3-pc clear styrene, banded 225-503 225-528
Qty. 50 50 50 12 50 12
Microvacuum Cassettes for Asbestos • Nozzle for easy sampling of settled dust on surfaces • Meets specifications of ASTM D5755 and D5756 • Use with a high flow pump
Carbon-filled polypropylene with cowl and nozzle. 25-mm 0.45-μm MCE filter, BestChek, for TEM analysis Cat. No. ................................225-322 Styrene (non-conductive) with nozzle. 37-mm 0.45-μm MCE filter, for TEM analysis Cat. No. ..............................225-9543
Nano-Neat MCE Filter Cassettes
Ultra-pure for sampling workplace chromium. Cassettes are tinted purple for easy identification. Each box contains a Certificate of Conformance. All SKC preloaded filters include supports and are in SureSeal leak-free cassettes requiring a SureSeal Cassette Opener (see p. 88).
Diameter (mm) 25 25 37 37
SKC Inc.
Filter Specifications MCE, 0.8 μm, Nano-Neat MCE, 0.8 μm, Nano-Neat MCE, 0.8 μm, Nano-Neat MCE, 0.8 μm, Nano-Neat
Phone: +1-724-941-9701
Cassette Description 2-pc purple styrene, banded 3-pc purple styrene, banded 2-pc purple styrene, banded 3-pc purple styrene, banded
Cat. No. 225-8402 225-8404 225-8408 225-8410
Qty. 50 50 50 50
www.skcinc.com
For asbestos sampling pump and accessories see pages 26-27 77
Mixed Cellulose Ester Membranes A Gold Standard for IH Sampling
ABOUT MCE Filters and Nanoparticles NIOSH has been using the SKC Leland Legacy Sample Pump (pages 22-23) with 0.8-μm MCE filters for exposure assessments of engineered nanoparticles. After collection onto 37-mm MCE filters in open-face cassettes, particles are analyzed for particle morphology and elemental mass. Note that nanoparticles will not fall through the pores of the 0.8-μm MCE filters; the very intense activity of nanoparticles and their constant collision with other particles prevent them from going through the pores like a sieve. For more information, see NIOSH Publication No. 2009125, Approaches to Safe Nanotechnology: Managing the Health and Safety Concerns Associated with Engineered Nanomaterials at www.cdc.gov/niosh/docs/2009125/, download the PDF, and scroll to the Appendix on page 71, which contains the sampling information.
The standard filter for most particulate sampling in industrial hygiene applications, mixed cellulose ester (MCE or MEC) membrane filters are comprised of pure, biologically inert mixtures of cellulose acetate and cellulose nitrate. MCE membranes are naturally low in metal background and are compatible with dilute bases and acids and aromatic and aliphatic hydrocarbons. MCE filters are hydrophilic and autoclavable.
MCE Filters Diameter (mm) 25 25 25 25 25 25 37 37 37 37 37 37 37 47 47 47 102
Pore Size (μm) 0.45 0.8 0.8 0.8 1.2 1.2 0.45 0.45 0.8 0.8 0.8 1.2 5.0 0.45 0.8 1.2 0.8
Support Pad‡ No Yes No No No No No Yes No Yes No No No No No No No
† Recommended for use with the Button Sampler, see page 93
Notes
use with IOM (p. 92) black grid black grid
black grid
Cat. No. 225-1911 225-19 225-1930 225-1913 225-1912† 225-60F 225-1914 225-9 225-1939 225-5 225-334 225-1923 225-1938 225-506 225-504 225-1921 225-1916
Qty. 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 25
‡ Filter supports available on page 87
ACCU-CAP MCE Filter Cassette Inserts
ACCU-CAP Inserts Air with Contaminants Enters Here ACCU-CAP Cassette Insert
Cassette Inlet Section Fibers and Particles
Cellulose Pad
Cassette Outlet Section
ACCU-CAPs are clear static-dissipative PVC or dissolvable cellulose acetate domes heat-sealed to a filter to create a filter capsule. ACCU-CAPs fit between the parts of a two-piece cassette with support pad. Containment of the sample within the capsule prevents cassette wall losses. Use the PVC dome for gravimetric analysis; use the cellulose acetate dome for elemental analysis. ACCU-CAPS are designed to work with SKC cassettes.
Diameter (mm) 25 37 37
Pore Size (μm) 0.8 0.8 0.8
Dome Material static-dissipative PVC static-dissipative PVC dissolvable cellulose acetate
Notes
Preloaded in 2-pc cassette with support
Cat. No. 225-8506 225-8514 225-8517
Qty. 60 60 50
Matched-weight MCE Filters for Faster Gravimetric Determinations
Matched-weight MCE filter pairs are certified as matched in weight to within 50 μg. Load the filters into a cassette; the top filter collects the contaminant, the bottom filter acts as a control. No preweighing or conditioning is required. After sampling, both filters are weighed and the difference between weights is the sample weight.
Diameter (mm) 37 47
Filter Specifications MCE, 0.8 μm, matched-weight within 50 μg, filter pairs only* MCE, 0.8 μm, matched-weight within 50 μg, filter pairs only*
Cat. No. 225-532* 225-531*
Qty. 50 50
* Not preloaded in cassettes
76
www.skcltd.com
SKC Ltd.
Phone: +44 (0)1258 480188
Particulate Sampling Filters
Certified BestChek Asbestos Cassettes The Highest Standard for Cassette Reliability
ABOUT
SKC Certified BestChek Filters in Carbon-filled Polypropylene Cassettes All SKC preloaded asbestos filters include cellulose supports.
Diameter (mm) Filter Specifications 25 MCE, 0.8 μm
Cassette Description with cowl, banded
Cat. No. 225-321
Qty. 50
225-321A
50
225-326
50
25
MCE, 0.8 μm
25
MCE, 0.8 μm, black grid
with cowl, banded, with stand-up plug in outlet end with cowl, banded
25
MCE, 1.2 μm, black grid
with cowl, banded
225-1934
50
25
MCE, 0.45 μm* TEM analysis
with cowl, banded, with support and 5.0-μm diffuser pad
225-327
50
The 5 C’s of Asbestos Cassettes Only from SKC — BestChek® cassettes meet or exceed NIOSH, OSHA, and ASTM standards in Count, Clearing, Conductivity, Collection Area, and Construction.
Specify SKC BestChek Asbestos Cassettes — your assurance of reliability and accuracy.
* Available as microvacuum carpet cassette with nozzle, see far right
Preloaded MCE Filters Preloaded MCE Filters
All SKC preloaded filters include supports and are in SureSeal leak-free cassettes requiring a SureSeal Cassette Opener (see p. 88).
Diameter (mm) 25 25 37 37 37 37
Filter Specifications MCE, 0.8 μm MCE, 1.2 μm MCE, 0.45 μm MCE, 0.45 μm MCE, 0.8 μm MCE, 0.8 μm
Cassette Description 3-pc clear plastic, banded 3-pc black conductive, banded 3-pc black conductive, banded 4-pc clear styrene, banded 2-pc clear styrene, banded 3-pc clear styrene, banded 3-pc clear styrene, banded 3-pc clear styrene, not banded
Cat. No. 225-3100 225-507 225-1924 225-1925 225-508 225-3-01 225-3-01A 225-3-01NB
Qty. 50 50 50 50 50 50 500 50
Matched-weight MCE Filter Cassettes
All SKC preloaded filters include supports and are in SureSeal leak-free cassettes requiring a SureSeal Cassette Opener (see p. 88).
Diameter (mm) 25 37 37
Filter Specifications MCE, 0.8 μm, matched-weight within 50 μg MCE, 0.8 μm, matched-weight within 100 μg MCE, 0.8 μm, matched-weight within 50 μg
37
MCE, 0.8 μm, matched-weight within 50 μg
Cassette Description 2-pc clear styrene, banded 3-pc clear styrene, banded 2-pc clear styrene, banded
Cat. No. 225-525 225-3-02 225-502 225-527 3-pc clear styrene, banded 225-503 225-528
Qty. 50 50 50 12 50 12
Microvacuum Cassettes for Asbestos • Nozzle for easy sampling of settled dust on surfaces • Meets specifications of ASTM D5755 and D5756 • Use with a high flow pump
Carbon-filled polypropylene with cowl and nozzle. 25-mm 0.45-μm MCE filter, BestChek, for TEM analysis Cat. No. ................................225-322 Styrene (non-conductive) with nozzle. 37-mm 0.45-μm MCE filter, for TEM analysis Cat. No. ..............................225-9543
Nano-Neat MCE Filter Cassettes
Ultra-pure for sampling workplace chromium. Cassettes are tinted purple for easy identification. Each box contains a Certificate of Conformance. All SKC preloaded filters include supports and are in SureSeal leak-free cassettes requiring a SureSeal Cassette Opener (see p. 88).
Diameter (mm) 25 25 37 37
SKC Inc.
Filter Specifications MCE, 0.8 μm, Nano-Neat MCE, 0.8 μm, Nano-Neat MCE, 0.8 μm, Nano-Neat MCE, 0.8 μm, Nano-Neat
Phone: +1-724-941-9701
Cassette Description 2-pc purple styrene, banded 3-pc purple styrene, banded 2-pc purple styrene, banded 3-pc purple styrene, banded
Cat. No. 225-8402 225-8404 225-8408 225-8410
Qty. 50 50 50 50
www.skcinc.com
For asbestos sampling pump and accessories see pages 26-27 77
