Round-robin test for organic solvents

Part of IFA's test gas stream

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Test gas stream
Source: IFA

The round-robin test is offered alternatively with and without sampling. Participants may choose whether they wish to perform sampling for organic solvents themselves at the dynamic test gas stream at the IFA, or to have loaded sample carriers supplied to them.

The concentrations to be measured depend on the occupational limit values of the solvents. They will lie within the range of 1/100 to two times the AGW1 value.

The round-robin test consists of three runs with different substances and different concentrations in the test gas. The test gas will contain up to ten different organic solvents.

Examples of substance selection – Round-robin tests for organic solvents

Substance group Substances
Alkanes [1] n-hexane, cyclohexane, n-heptane, methylcyclohexane, n-octane, n-nonane, n-decane
Alcohols ethanol, 1-propanol, 2-propanol, n-butanol, i-butanol, 2-butanol,
2-methyl-2-propanol, cyclohexanol
Aromates [2] toluene, ethylbenzene, o-/m-/p-xylene, propylbenzene, cumene,
1,2,3-trimethylbenzene, 1,2,4-trimethylbenzene, 1,3,5-trimethylbenzene
Esters [3] methyl acetate, ethyl acetate, n-propyl acetate, i-propyl acetate, n-butyl acetate, i-butyl acetate
Ethers 1-methoxy-2-propanol, 2-methoxyethyl acetate, ethoxyethyl acetate,
2-methoxy-1-methylethyl acetate, butoxyethanol, butoxyethyl acetate
Ketones [4] acetone, butanone, cyclopentanone, 2-hexanone, 4-methyl-2-pentanone, cyclohexanone, 2,6-dimethyl heptan-4-one

The substances can be analysed by means of the analysis methods according to IFA Folder No. 7322 [1], 7732 [2], 7733 [3] resp. 7708 [4].

1 Round-robin test with sampling

A large-scale dynamic test gas stream can be found at the IFA. It is suitable for parallel sampling by up to 13 participants.

  • When:
    1st series of experiments: 07 to 08 February 2017
    2nd series of experiments: 08 to 09 February 2017
  • Where:
    Institut für Arbeitsschutz der Deutschen Gesetzlichen Unfallversicherung (IFA)
    Alte Heerstr. 111
    53757 Sankt Augustin
    Germany
  • Concentration range: 1/100 to two times the AGW1 value.
  • Duration: 2 hours plus preparation time and run-in period.
  • Number of test series: 3
  • Accomodations: Hotels at Sankt Augustin

2 Round-robin test without sampling

Loading of the sample carriers for organic solvents is performed at the dynamic test gas stream of the IFA.

The participants have the choice between two sample carriers:

  1. Activated charcoal tubes NIOSH (Prod. No. 64 00742) manufactured by Dräger
  2. Activated charcoal tubes TYPE B/BIA (Prod. No. 64 00744) manufactured by Dräger

Each participant receives a sample kit comprising:

  • Three loaded sample carriers, and
  • Two unloaded sample carriers for blank value adjustment.

1 The German acronym AGW stands for Arbeitsplatzgrenzwert (Occupational Exposure Limit value – OEL). For carcinogenic substances and substances without AGW the database GESTIS – International limit values for chemical agents (www.dguv.de/ifa/gestis-limit-values) is used.

Sources

[1] Essigsäureester (Kennzahl 7322). In: IFA-Arbeitsmappe Messung von Gefahrstoffen. 42. Lfg. V/2009. Ed.: Institut für Arbeitsschutz der DGUV (IFA), Sankt Augustin. Erich Schmidt, Berlin 2011 - Loose-leaf edition

[2] Kohlenwasserstoffe, aliphatisch (Kennzahl 7732). In: IFA-Arbeitsmappe Messung von Gefahrstoffen. 48. Lfg. XI/2011.

[3] Kohlenwasserstoffe, aromatisch (Kennzahl 7733). In: IFA-Arbeitsmappe Messung von Gefahrstoffen. 34. Lfg. IV/05. 

[4] Ketone (Kennzahl 7708). In: IFA-Arbeitsmappe Messung von Gefahrstoffen. 34. Lfg. IV/05.