International Standard
ISO 16702:2007
Workplace air quality — Determination of total organic isocyanate groups in air using 1-(2-methoxyphenyl)piperazine and liquid chromatography
Reference number
ISO 16702:2007
Edición 2
2007-12
International Standard
Vista previa
ISO 16702:2007
42007
No disponible en español
Publicado (Edición 2, 2007)
Esta norma se revisó y confirmó por última vez en 2021. Por lo tanto, esta versión es la actual.

ISO 16702:2007

ISO 16702:2007
42007
Idioma
Formato
CHF 151
Convertir Franco suizo (CHF) a tu moneda

Resumen

ISO 16702:2007 gives general guidance for the sampling and analysis of airborne organic isocyanate (NCO) compounds in workplace air.

ISO 16702:2007 is appropriate for a wide range of organic compounds containing isocyanate functional groups, including isocyanate monomers and prepolymers. Monomers containing a single isocyanate moiety (e.g. methyl isocyanate, ethyl isocyanate, phenyl isocyanate, hexyl isocyanate) are produced during thermal degradation of polyurethanes, i.e. flame bonding and laser cutting. Isocyanate polymers, also called polyisocyanates, homopolymers, oligomers or prepolymers, are derived from the diisocyanate monomers by self-condensation or reaction with polyols. Polymeric diisocyanates are widely used in the polyurethanes, paints and coatings, and adhesives industries.

ISO 16702:2007 is appropriate for measuring any product containing free isocyanate groups. It was developed primarily for the commonly used methylenebis(phenylisocyanate) (MDI), 1,6-(diisocyanato)hexane (HDI), and toluene diisocyanate (TDI) and their oligomers and polymers. It has also been used for isophorone diisocyanate (IPDI), hydrogenated methylenebis(phenylisocyanate) (HMDI), and naphthyldiisocyanate (NDI), and their oligomers and polymers.

The method is used to determine time-weighted average concentrations of organic isocyanates in workplace atmospheres, and is suitable for sampling over periods in the range 0,5 min to 8 h. The method is designed for personal monitoring, but can also be used for fixed location monitoring by suitable modification.

The method is suitable for the measurement of airborne organic isocyanates in the concentration range from approximately 0,1 µg/m3 to 140 µg/m3 for a 15 l sample volume.

Informaciones generales

  •  : Publicado
     : 2007-12
    : Norma Internacional para revisar [90.92]
  •  : 2
     : 35
  • ISO/TC 146/SC 2
    13.040.30 
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