ASTM International - ASTM D5932-08(2013)

Standard Test Method for Determination of 2,4-Toluene Diisocyanate (2,4-TDI) and 2,6-Toluene Diisocyanate (2,6-TDI) in Air (with 9-(N-Methylaminomethyl) Anthracene Method) (MAMA) in the Workplace

historical
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Organization: ASTM International
Publication Date: 1 April 2013
Status: historical
Page Count: 6
ICS Code (Workplace atmospheres): 13.040.30
ICS Code (Chemical analysis): 71.040.40
significance And Use:

5.1 TDI is used mostly in the preparation of rigid and semi-rigid foams and adhesives.

5.2 Isocyanate use has been growing for the last 20 years and the industrial need is still... View More

scope:

1.1 This test method covers the determination of gaseous 2,4-toluene diisocyanate (2,4-TDI) and 2,6-toluene diisocyanate (2,6-TDI) in air samples collected from workplace and ambient atmospheres.

1.2 Differential air sampling is performed with a segregating device.2,3 The gaseous fraction is collected on a glass fiber filter (GFF) impregnated with 9-(N-methylaminomethyl) anthracene (MAMA).

1.3 The analysis of the gaseous fraction is performed with a high performance liquid chromatograph (HPLC) equipped with ultraviolet (UV) and fluorescence detectors.

1.4 The analysis of the aerosol fraction is performed separately as described in Ref (1).4

1.5 The range of application of this test method, utilizing UV and a fluorescence detector, is validated for 0.029 to 1.16 μg of monomer 2,4- and 2,6-TDI/2.0 mL of desorption solution, which corresponds to concentrations of 0.002 to 0.077 mg/m3 of TDI based on a 15-L air sample. This corresponds to 0.28 to 11 ppb(V) and brackets the established TLV value of 5 ppb(v).

1.6 A field blank sampling system is used to check the possibility of contamination during the entire sampling and analysis.

1.7 The values stated in SI units are to be regarded as the standard.

1.8 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Document History

ASTM D5932-08(2013)
April 1, 2013
Standard Test Method for Determination of 2,4-Toluene Diisocyanate (2,4-TDI) and 2,6-Toluene Diisocyanate (2,6-TDI) in Air (with 9-(N-Methylaminomethyl) Anthracene Method) (MAMA) in the Workplace
5.1 TDI is used mostly in the preparation of rigid and semi-rigid foams and adhesives. 5.2 Isocyanate use has been growing for the last 20 years and the industrial need is still growing....
April 1, 2013
Standard Test Method for Determination of 2,4-Toluene Diisocyanate (2,4-TDI) and 2,6-Toluene Diisocyanate (2,6-TDI) in Air (with 9-(N-Methylaminomethyl) Anthracene Method) (MAMA) in the Workplace
5.1 TDI is used mostly in the preparation of rigid and semi-rigid foams and adhesives. 5.2 Isocyanate use has been growing for the last 20 years and the industrial need is still growing....
April 1, 2008
Standard Test Method for Determination of 2,4-Toluene Diisocyanate (2,4-TDI) and 2,6-Toluene Diisocyanate (2,6-TDI) in Air (with 9-(N-Methylaminomethyl) Anthracene Method) (MAMA) in the Workplace
p>TDI is used mostly in the preparation of rigid and semi-rigid foams and adhesives. Isocyanate use has been growing for the last 20 years and the industrial need is still growing. Diisocyanates...
April 10, 1996
Standard Test Method for Determination of 2,4-Toluene Diiso cyanate (2,4-TDI) and 2,6-Toluene Diiso cyanate (2,6-TDI) in Air (with 9-(N-Methylaminomethyl) Anthracene Method) (MAMA) in the Workplace
1.1 This test method covers the determination of gaseous 2,4-toluene di iso cyanate (2,4-TDI) and 2,6-toluene di iso cyanate (2,6-TDI) in air samples collected from workplace and ambient...
April 10, 1996
Standard Test Method for Determination of 2,4-Toluene Diiso cyanate (2,4-TDI) and 2,6-Toluene Diiso cyanate (2,6-TDI) in Air (with 9-(N-Methylaminomethyl) Anthracene Method) (MAMA) in the Workplace
1.1 This test method covers the determination of gaseous 2,4-toluene di iso cyanate (2,4-TDI) and 2,6-toluene di iso cyanate (2,6-TDI) in air samples collected from workplace and ambient...
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