Iso CheK Cassettes
- Accurately samples diisocyanates: HDI, MDI, IPDI, HMDI, 2,4-TDI, and 2,6-TDI.
- The only filter-based sampling system that simultaneously traps and separates both monomers and oligomers; meets the specifications of several ASTM methods
Specifications
| Collection Method | Dual filter cassette; 5-(m PTFE membrane traps aerosol phase, glass fiber filter impregnated with MAMA collects vapor phase |
| Sample Flow Rate | 1 L/min |
| Sample Time | 15 minutes |
| Derivatizing Reagent (filter coating for vapor phase) |
9-(N-methylaminomethyl) anthracene (MAMA) |
| Reagent Stability | 10 months at ambient temperature |
| Derivatizing Solution (for aerosol phase) |
1-(2-Methoxyphenyl) piperazine (MOPIP) |
| Sample Stability | Can be stored at 39.2 F (4 C) for up to 10 days. SKC recommends sample analysis as soon as possible. |
| Analysis | Reverse phase HPLC with UV and fluorescence detection |
| Quantitation Limit | 0.15 ppb for 2,4-TDI, 2,6-TDI, 1,6-HDI, IPDI, MDI, HMDI monomer 1.5 ppb for 1,6-HDI and MDI oligomers |
| Limit of Detection | 0.2 mg/m3 for 2,4-TDI and 2,6-TDI 0.6 mg/m3 for 1,6-HDI 0.3 (UV)/0.08 (FD) mg/m3 ** for MDI |
Resources
General
MSDS_—_MAMA_9-(Methylaminomethyl)_Anthracene_(PDF).pdf
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ISO-CHEK_Isocyanate_Sampling_System_Product_Data_Bulletin_(PDF).pdf
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Technical_Note-_ISO-CHEK_—_A_Comparison_of_ISO-CHEK_Method_Parameters_and_Reagent_Stability_(PDF).pdf
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MSDS_—_MOPIP_1-(2-Methoxyphenyl)_Piperazine_(PDF).pdf
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MSDS_—_Toluene_(PDF).pdf
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