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SKC Coated Filters
Pretreated, Preloaded, and Prebanded
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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 sample 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) yield samples that
are susceptible to degradation under ambient conditions, require
time-consuming sample preparation, and can provide 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
For Agency Methods
| Chemical | Method* |
Filter
and Coating 37-mm cassette with shrink bands Coated filters have a limited shelf-life |
Notes | Qty. | |
| Acetic anhydride | OSHA 82 |
2 Glass filters; 1-(2-pyridyl) piperazine 4-piece, 37-mm cassette |
1 | 10 | |
| Acetic anhydride | 2 Glass filters; veratrylamine
and di-n-octyl phthalate 4-piece, 37-mm cassette |
3 | 10 | ||
| 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;1 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;
1 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 — |
OSHA 42 |
1 Glass filter and cellulose support;
1-(2-pyridyl) piperazine 3-piece, 37-mm cassette |
1,4 | 10 | |
| 1,3,4 | 10 | ||||
| Diisocyanates — Toluene-2,4-diisocyanate (2,4-TDI), Toluene-2,6-diisocyanate (2,6-TDI) |
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 |
| 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 | ||||
Isocyanates |
Oregon-OSHA 1010 | 1 glass fiber fliter; MAMA 13 mm preloaded in a 13-mm Swinnex holder |
1,y | 5 | 225-9029 |
| 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 |
| Maleic anhydride | ‡
|
Glass filter;
veratrylamine |
1 | 10 | 225-9028 |
| 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 |
9 | 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 | 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 |
| Peroxyacetic acid and Hydrogen peroxide | NON 57 | Quartz filter; titanium oxysulfate hydrate 2-piece 25-mm cassette |
z | 10 | 225-9030 |
| 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
|
1 Glass filter; hydrobromic acid 2-piece, 37-mm cassette |
10 | 225-9027 | |
| n-Valeraldehyde | OSHA 85 |
3 Glass filters; 2,4-dinitrophenylhydrazine and
phosphoric acid 3-piece, 37-mm cassette |
1 | 10 | 225-9020 |
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. |
| 9 | OSHA 57 is an update of NIOSH 5029 which called for a single filter |
| † | 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. |
| y |
Requires impinger Cat. No. 225-36-1 |
| z | Requires sorbent tube Cat. No. 26-193
for simultaneous, separate sampling of paracetic acid |
| ‡ | For inhalable TLV; analysis by OSHA
86 |
| Non 57: Simultaneous Sampling of Peroxyacetic Acid and Hydrogen Peroxide in Workplace Atmospheres, G. Hecht, M Hery, G. Hubert and I. Subra, INRS, BP 27, 5401 Vandoeuvre Les Nancy Cedex, France |
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.
| 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
Coated
Filters in Preloaded Cassettes Spec. Sheet (PDF)
Operating Instructions (PDF)
Material Safety Data Sheets (PDF)
9-(Methylaminomethyl) Anthracene (MAMA) (Cat. Nos. 225-9022, 225-9022A, 225-9023, 225-9023A)
Custom Filters AvailableFor 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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