ISO 17734-1:2013
Current
The latest, up-to-date edition.
Determination of organonitrogen compounds in air using liquid chromatography and mass spectrometry — Part 1: Isocyanates using dibutylamine derivatives
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English
27-11-2013
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ISO 17734-1:2013 gives general guidance for the sampling and analysis of airborne isocyanates in workplace air. When amines and aminoisocyanates are suspected to be emitted (e.g. from thermal degradation of PUR), it is recommended that, in addition to isocyanates, the amines and aminoisocyanates in the air are determined, using DBA and ethyl chloroformate as reagents (see ISO 17734-2).
The method is suitable for the determination of a wide range of different isocyanates in both the gas and particle phases. Typical monofunctional isocyanates that can be determined are isocyanic acid (ICA), methyl isocyanate (MIC), ethyl isocyanate (EIC), propyl isocyanate (PIC), butyl isocyanate (BIC), and phenyl isocyanate (PhI). Typical monomeric diisocyanates include 1,6-hexamethylene diisocyanate (HDI), 2,4- and 2,6-toluene diisocyanate (TDI), 4,4'-methylenediphenyl diisocyanate (MDI), 1,5-naphthyl diisocyanate (NDI), isophorone diisocyanate (IPDI), and 4,4'-dicyclohexylmethane diisocyanate (HMDI). Multifunctional isocyanates that can be determined are typically oligomers in polymeric MDI, biuret-, isocyanurate-, and allophanate-adducts, and prepolymeric forms of isocyanates.
The instrumental detection limit for aliphatic isocyanates is about 5 nmol/sample and for aromatic isocyanates, it is about 0,2 nmol/sample. For a 15 l air sample, this corresponds to 0,6 ng∙m?3 for HDI and 0,02 ng∙m?3 for TDI.
The useful range, for a 5 l air sample, of the method is approximately 0,001 µg∙m?3 to 200 mg∙m?3 for TDI.
| DevelopmentNote |
Supersedes ISO/DIS 17734-1. (12/2013)
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| DocumentType |
Standard
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| Pages |
33
|
| PublisherName |
International Organization for Standardization
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| Status |
Current
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| Supersedes |
| Standards | Relationship |
| NEN ISO 17734-1 : 2013 | Identical |
| BS ISO 17734-1:2013 | Identical |
| GOST R ISO 17734-1 : 2009 | Identical |
| ISO 17736:2010 | Workplace air quality Determination of isocyanate in air using a double-filter sampling device and analysis by high pressure liquid chromatography |
| DD CEN ISO/TS 15011-5:2006 | Health and safety in welding and allied processes. Laboratory method for sampling fume and gases Identification of thermal-degradation products generated when welding or cutting through products composed wholly or partly of organic materials |
| I.S. CEN ISO TS 15011-5:2006 | HEALTH AND SAFETY IN WELDING AND ALLIED PROCESSES - LABORATORY METHOD FOR SAMPLING FUME AND GASES - PART 5: IDENTIFICATION OF THERMAL-DEGRADATION PRODUCTS GENERATED WHEN WELDING OR CUTTING THROUGH PRODUCTS COMPOSED WHOLLY OR PARTLY OF ORGANIC MATERIALS |
| ISO/TS 15011-5:2006 | Health and safety in welding and allied processes Laboratory method for sampling fume and gases Part 5: Identification of thermal-degradation products generated when welding or cutting through products composed wholly or partly of organic materials |
| ISO 17734-2:2013 | Determination of organonitrogen compounds in air using liquid chromatography and mass spectrometry — Part 2: Amines and aminoisocyanates using dibutylamine and ethyl chloroformate derivatives |
| BS ISO 17735:2009 | Workplace atmospheres. Determination of total isocyanate groups in air using 1-(9-anthracenylmethyl)piperazine (MAP) reagent and liquid chromatography |
| BS ISO 17734-2:2013 | Determination of organonitrogen compounds in air using liquid chromatography and mass spectrometry Amines and aminoisocyanates using dibutylamine and ethyl chloroformate derivatives |
| ISO 17735:2009 | Workplace atmospheres Determination of total isocyanate groups in air using 1-(9-anthracenylmethyl)piperazine (MAP) reagent and liquid chromatography |
| 18/30350765 DC : 0 | BS ISO 17735 - WORKPLACE ATMOSPHERES - DETERMINATION OF TOTAL ISOCYANATE GROUPS IN AIR USING 1-(9-ANTHRACENYLMETHYL)PIPERAZINE (MAP) REAGENT AND LIQUID CHROMATOGRAPHY |
| CEN ISO/TS 15011-5:2006 | Health and safety in welding and allied processes - Laboratory method for sampling fume and gases - Part 5: Identification of thermal-degradation products generated when welding or cutting through products composed wholly or partly of organic materials (ISO/TS 15011-5:2006) |
| EN 482:2012+A1:2015 | Workplace exposure - General requirements for the performance of procedures for the measurement of chemical agents |
| ISO 13137:2013 | Workplace atmospheres — Pumps for personal sampling of chemical and biological agents — Requirements and test methods |
| ENV 12260 : DRAFT 1996 | |
| ISO 16200-1:2001 | Workplace air quality — Sampling and analysis of volatile organic compounds by solvent desorption/gas chromatography — Part 1: Pumped sampling method |
| EN 13205:2001 | Workplace atmospheres - Assessment of performance of instruments for measurement of airborne particle concentrations |
| ISO 5725-2:1994 | Accuracy (trueness and precision) of measurement methods and results Part 2: Basic method for the determination of repeatability and reproducibility of a standard measurement method |
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