Coated Filters
in Preloaded Cassettes

SKC Saves you time and money
with coated filters in preloaded cassettes

Ready to use
Time-saving
Convenient alternative to impinger wet chemistry methods
Economical
No assembly required
- Preloaded into cassettes
- Sealed with end plugs and sealing bands
Meet NIOSH, OSHA, and ASTM method specifications
No cumbersome collection liquids or glass
Easy personal sampling
Small package size for short shelf-life product

For your convenience, SKC manufactures coated filters for a wide variety of air sampling methods that require chemically treated filters or pads. SKC Coated Filters are shipped inside the cassettes with end plugs and sealing bands in place. No assembly is required; they are ready to use.

To use coated filters, simply remove the end caps and connect the cassette to the sampling pump using Tygon tubing. Remove the inlet section if sampling open face. After sampling, remove the cassette and replace the end caps or entire inlet section. Record the flow rate and sample time, then send the filter cassettes and sampling information to a lab for analysis.

Ordering Information

Coated Filter Selection Chart

Chemical	Method*	Filter and Coating Cassette with sealing bands Coated filters have a limited shelf life	Notes	Qty.	Cat. No.
Acetic anhydride	OSHA 82	2 Glass filters; 1-(2-pyridyl) piperazine 4-piece, 37-mm cassette	1	10	225-9009
Acetic anhydride	OSHA 102	2 Glass filters; veratrylamine and di-n-octyl phthalate 4-piece, 37-mm cassette	3	10	225-9010
4-Aminobiphenyl	OSHA 93	2 Glass filters; sulfuric acid 3-piece, 37-mm cassette		10	225-9004
Aniline	NIOSH 2017	2 Glass filters; sulfuric acid 3-piece, 37-mm cassette	6	10	225-9004
Arsenic, inorganic (volatile compounds as As)	OSHA ID-105	1 MCE filter and cellulose pad; sodium carbonate 3-piece, 37-mm cassette		10	225-9001
Benzidine	OSHA 65	2 Glass filters; sulfuric acid 3-piece, 37-mm cassette		10	225-9004
Bromine	NIOSH 6011	1 Teflon pre-filter and polypropylene support; specially cleaned silver membrane and polypropylene support 3-piece, 25-mm cassette		5	225-9006
Chlorine	NIOSH 6011	1 Teflon pre-filter and porous plastic support; specially cleaned silver membrane and porous plastic support 3-piece, 25-mm cassette		5	225-9006
Crotonaldehyde	OSHA 81	2 Glass filters; 2,4-dinitrophenylhydrazine and phosphoric acid 3-piece, 37-mm cassette	1	10	225-9019
o-Dianisidine	OSHA 71	2 Glass filters; sulfuric acid 3-piece, 37-mm cassette		10	225-9004
3,3'-Dichlorobenzidine	OSHA 65	2 Glass filters; sulfuric acid 3-piece, 37-mm cassette		10	225-9004
Diisocyanates — 1,6-Hexamethylene diisocyanate (HDI), Toluene-2,4-diisocyanate (2,4-TDI ), Toluene-2,6-diisocyanate (2,6-TDI)	OSHA 42	1 Glass filter and cellulose support; 1-(2-pyridyl) piperazine 3-piece, 37-mm cassette	1,4	10	225-9002
	OSHA 42		1,2,3,4	10	225-9013
Diisocyanates — Toluene-2,4-diisocyanate (2,4-TDI ), Toluene-2,6-diisocyanate (2,6-TDI)	ASTM D5836	1 Glass filter and cellulose support; 1-(2-pyridyl) piperazine 3-piece, 37-mm cassette	1,4	10	225-9002
	ASTM D5836		1,2,3,4	10	225-9013
Diphenylamine	OSHA 78	2 Glass filters; sulfuric acid 3-piece, 37-mm cassette		10	225-9004
Fluorides	OSHA ID-110 NIOSH 7902 NIOSH 7906 ASTM D4765	1 MCE filter and cellulose pad; sodium carbonate 3-piece, 37-mm cassette	8	10	225-9001
Fluoride, particulates	EPA 14A not EPA TO-14A	2 PVC filters and supports; sodium formate/Metricel filter; uncoated 4-piece, 37-mm cassette		10	225-9016
Glutaraldehyde	OSHA 64	2 Glass filters; 2,4-dinitrophenyl hydrazine and phosphoric acid 4-piece, 37-mm cassette	1	10	225-9003
Hydrazine	OSHA 108	2 Glass filters; sulfuric acid 3-piece, 37-mm cassette		10	225-9012
Isocyanates Toluene-2,4-diisocyanate (2,4-TDI ), Toluene-2,6-diisocyanate (2,6-TDI), Hexamethylene diisocyanate	ASTM D5932 ASTM D6561 ASTM D6562	1 PTFE filter, 1 Glass Fiber filter treated with MAMA (ISO-CHEK Sampling System) 3-piece, 37-mm cassette		12	225-9022
	ASTM D5932 ASTM D6561 ASTM D6562			36	225-9022A
Isocyanates, organic	MDHS 25/3 (UK)	AE Glass filter; methoxyphenyl piperazine 25-mm filters only, not in preloaded cassettes	1,7	5	225-9011
N-Isopropylaniline	OSHA 78	2 Glass filters; sulfuric acid 3-piece, 37-mm cassette		10	225-9004
Maleic anhydride	OSHA 86	2 Glass filters; veratrylamine 3-piece, 37-mm cassette	1	10	225-9021
Mercaptans (methyl-, ethyl- , n-butyl-, and phenyl-)	NIOSH 2542 OSHA 26 OSHA PV2075	1 Glass filter; mercuric acetate 2-piece, 37-mm cassette	1	10	225-9007
4,4'-Methylene bis (2-chloroaniline) (MOCA)	OSHA 71	2 Glass filters; sulfuric acid 3-piece, 37-mm cassette		10	225-9004
Methylene bisphenyl isocyanate (MDI)	OSHA 47	1 Glass filter and cellulose support; 1-(2-Pyridyl) piperazine 3-piece, 37-mm cassette	1,4	10	225-9002
Methylene bisphenyl isocyanate (MDI)	OSHA 47		1,2,3,4	10	225-9013
4,4'-Methylenedianiline	OSHA 57 NIOSH 5029	2 Glass filters; sulfuric acid 3-piece, 37-mm cassette		10	225-9004
1-Naphthylamine	OSHA 93	2 Glass filters; sulfuric acid 3-piece, 37-mm cassette		10	225-9004
2-Naphthylamine	OSHA 93	2 Glass filters; sulfuric acid 3-piece, 37-mm cassette		10	225-9004
Nitrobenzene	NIOSH 2017	2 Glass filters; sulfuric acid 3-piece, 37-mm cassette	6	10	225-9004
Ozone	OSHA ID-214	2 Glass filters; nitrite-impregnated 3-piece, 37-mm cassette	1,3	10	225-9014
Phenylenediamine (o-, m-, p-)	OSHA 87	2 Glass filters; sulfuric acid 3-piece, 37-mm cassette		10	225-9004
Phosphine	OSHA 1003	1 Glass filter; 1 polyester filter treated with mercuric chloride 3-piece, 37-mm cassette	1,3	10	225-9018
Sulfur dioxide	NIOSH 6004	1 MCE pre-filter and support/1 cellulose filter and support; sodium carbonate 3-piece, 37-mm cassette	5	10	225-9005
o-Tolidine	OSHA 71	2 Glass filters; sulfuric acid 3-piece, 37-mm cassette		10	225-9004
2,4-Toluendiamine	OSHA 65	2 Glass filters; sulfuric acid 3-piece, 37-mm cassette		10	225-9004
2,6-Toluendiamine	OSHA 65	2 Glass filters; sulfuric acid 3-piece, 37-mm cassette		10	225-9004
o-Toluidine	NIOSH 2017	2 Glass filters; sulfuric acid 3-piece, 37-mm cassette	6	10	225-9004
Toluidine (o-, m-, p-)	OSHA 73	2 Glass filters; sulfuric acid 3-piece, 37-mm cassette		10	225-9004
Valeraldehyde	OSHA 85	3 Glass filters; 2,4-dinitrophenylhydrazine and phosphoric acid 3-piece, 37-mm cassette	1	10	225-9020
m-Xylylenediamine, p-Xylylenediamine (m-XDA, p-XDA)	OSHA 105	2 Glass filters; sulfuric acid 3-piece, 37-mm cassette		10	225-9004

Table Notes

1	Storage below 39.2 F (4 C) required
2	Freezer shelf-life of 3 months
3	Special order due to limited shelf-life
4	OSHA Method 42 specifies a filter loading of 0.1 mg of 1-(2-pyridyl) piperazine, and OSHA 47 and ASTM D5836 each specify a filter loading of 1 mg of 1-(2-pyridyl) piperazine; however, CF/CST 225-9002 and 225-9013 are acceptable for all of these sampling methods. 225-9002 : Loading of 1-(2-pyridyl) piperazine increased to 2 mg to increase stability and shelf-life of filters. 225-9013 : Loading of 1-(2-pyridyl) piperazine is 1 mg.
5	NIOSH Method 6004 modified. Single 3-piece cassette replaces two 2-piece cassettes in series following 1993 NIOSH revisions. Reference: Lorberau, Charles, "Determination of Gaseous and and Series Particulate Fluorides by Ion Chromatographic Analysis," Applied Occupational and Environmental Hygiene 8 (9) 1993, pp. 775-784.
6	NIOSH Method 2017 also requires SKC Sorbent Tube Cat. No. 226-15
7	Filters only; not in preloaded cassettes
8	Collects both vapor and aerosol phases of fluorides. The concept of sampling for fluorides in air using a double filter is patented in Canada by IRSST (Institut de recherche en santé et Robert-Suavé en sécurité du travail du Québec), 21-April-92, Patent No. 1,299,114.
*	The methods listed are the most widely used. Additional methods may be listed in the Sampling Guide, or use the form below.

Search for Methods for SKC Coated Filters

To search for methods which use a particular SKC Coated Filter, enter the exact SKC Catalog Number in the search box.

Enter SKC Catalog Number:

Chemical Name CAS No. Method Description and Cat. No.

For detailed information of Methods refer to SKC's:

Coated Filters in Preloaded Cassettes Spec. Sheet (PDF)

Material Safety Data Sheets

MSDS — MOPIP 1-(2-Methoxyphenyl) Piperazine (PDF)

MSDS — MAMA 9-(Methylaminomethyl) Anthracene (PDF)

MSDS — Toluene (PDF)

Custom Filters Available

For specific applications, SKC will manufacture filters to meet your specific requirements. Download the Custom Filter Order Form in PDF format. Complete the form and fax it to your SKC representative or contact your SKC representative or call the SKC Sales Department at 724-941-9701 for more information.

Custom Filters Order Form (PDF)

This page was last modified April 30, 2008