SKC Coated Filters
Pretreated, Preloaded, and Prebanded

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

Coated filters make sampling reactive compounds fast and easy. They are a convenient alternative to wet chemistry methods using impingers. Simply unplug the lightweight cassette, insert it into an SKC Filter Cassette Holder, clip holder to a worker’s collar, and attach to a personal sampling pump. Use coated filters to collect compounds that exist as an aerosol or mist or for some higher boiling vapors. Flow rates are typically greater than 1 L/min and sampling times range from 15 minutes to one hour. Most coated filter samples are extracted in solvents and analyzed by gas or liquid chromatography. SKC offers coated filters to meet a variety of OSHA, NIOSH, ASTM, and international agency methods.

ISO-CHEK Coated Filter System Developed for Isocyanates
Traditional methods for isocyanate collection (NIOSH 5521 with impinger and OSHA 42 with 1-2PP impregnated filter) yielded samples that were susceptible to degradation under ambient conditions, required time-consuming sample preparation, and provided ambiguous results. The IRSST (Institut de recherché Robert-Sauvé en santé et en sécurité du travail du Québec) minimized these problems by developing and patenting the ISO-CHEK Sampling System. The ISO-CHEK dual-filter cassette captures isocyanate aerosols and vapors simultaneously and separately at the point of collection. This collection method is highly stable, allows rapid sampling, and provides for highly sensitive physical and chemical characterization of isocyanates.


Ordering Information    

Coated Filter Selection Chart
For Agency Methods

Chemical	Method*	Filter and Coating 37-mm cassette with shrink 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 PTFE pre-filter and polypropylene support; specially cleaned silver membrane and polypropylene support 3-piece, 25-mm cassette		5	225-9006
Chlorine	NIOSH 6011	1 PTFE 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
			1,3,4	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
			1,3,4	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	5	12	225-9022
			5	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
			1,3,4	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 (modified)	1 MCE pre-filter and support/1 cellulose filter and support; sodium carbonate 3-piece, 37-mm cassette		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
1,3,5-Triglycidyl Isocyanurate (TGI)	OSHA PV2055	1Glass fiber filter; hydrobromic acid	3	10	225-9027
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
3	Custom order due to very limited shelf-life
4	While meeting the specifications of OSHA Methods 42 and 47, Coated Filter Cat. No. 225-9002 contains a higher than specified loading of reagent to increase stability and shelf-life. Coated Filter Cat. No. 225-9002 traps both vapor and aerosol phases. SKC also offers Coated Filter Cat. No. 225-9013 that contains the specified reagent loading for OSHA 42 and 47, but has a freezer shelf-life of only three months.
5	Meets multiple ASTM methods: ASTM D5932 for 2,4 and 2,6-TDI ASTM D6561 for HDI ASTM D6562 for HDI
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.
†	ASTM D5836 and D5932 for 2,4-TDI, 2,6-TDI only
*	The methods listed are the most widely used. Additional methods may be listed in the Sampling Guide or use the search 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:

• Guide to NIOSH, OSHA, and ASTM Air Sampling Methods
  
  
• Guide to EPA Air Sampling Standards
  
  
• Guide to HSE Air Sampling Standards
  

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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)

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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, contact your SKC representative, or call the SKC Sales Department at 724-941-9701 for more information.

Custom Filters Order Form (PDF)

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This page was last modified May 12, 2010