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EC number: 947-836-0
CAS number: -
total dustiness 15.15 mg/g (1.52%)
inhalable fraction 9.15 mg/g (0.92%)
thoracic fraction 1.99 mg/g (0.2%)
respirable (alveolar) fraction 0.73 mg/g (0.07%)
Examinations were performed to determine the dustiness of a substance
sample designated as "RESM1 4211 REACH". The objective of these
examinations was to determine the dust fractions of this substance.
These are the dust fractions which are defined in DIN EN 481 as the
inhalable fraction, thoracic fraction and the respirable fraction.
The modified Heubach procedure was applied. In the process, the
substance sample was mechanically stressed in a rotating drum (dust
generation device), and both the dust already contained in this sample
and the dust generated due to abrasion were removed from the dust
generation device by an air current. The proportion of dust separated
and considered as dust with the ability to become airborne was fed into
a seven-stage cascade impactor connected to the dust generation device.
Particle size classification was conducted by subsequent weighing of the
respective dust masses deposited on the individual cascade stages
reflecting certain particle size ranges.
As a conclusion, for the sample "RESM1 4211 REACH", the respirable
fraction represent 0.07 % of used quantity of the substance under the
modified Heubach procedure.
The particle size distribution of the test substance RESM1 4211 REACH
was determined via laser diffraction.
The test substance has the following particle size distribution:
D10 = 5.79 μm; D50 = 169.20 μm; D90 = 407.79 μm
The test substance has the following primary particle size distribution:
D10 = 5.79 μm; D50 = 169.20 μm; D90 = 407.79 μm.
The total dustiness and the respirable fraction represent 1.52% and
0.07%, respectively, as determined with the modified Heubach procedure.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
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