Tests related to industrial medicine (organic solvent, lead)
The primary goal of tests related to industrial medicine is
to regularly check the amount of organic solvents and lead that
have been absorbed in the bodies of workers who handle such substances.
Therefore, it is considered necessary to evaluate the results comprehensively,
including the work environment, rather than judge each result as normal or abnormal.
Also, ordinances on the prevention of poisoning based on the Industrial Safety
and Health Law requires the employer to submit a report of the results of
a medical examination to the Chief of the competent Labour Standards Inspection Office.
Distribution chart of the test on organic solvent and lead
Report of the results of a medical examination of an organic solvent, etc.
(Ordinance on the Prevention of Organic Solvent Poisoning, Form No. 3-2)
Report of the results of a medical examination of lead
(Ordinance on the Prevention of Lead Poisoning, Form No. 3)
Materials
Test items
Unit
Distribution
1
2
3
Toluene
** Hippuric acid, Urine
g/L
≤ 1
> 1 ≤ 2.5
> 2.5
Xylene
** Methylhippuric acid, Urine
g/L
≤ 0.5
> 0.5 ≤ 1.5
> 1.5
1,1,1-trichloroethane
*** Trichloro compounds, Urine, total
mg/L
≤ 10
> 10 ≤ 40
> 40
*** Trichloroacetic acid, Urine
mg/L
≤ 3
> 3 ≤ 10
> 10
N-N-dimethylformamide
** N-methylformamide, Urine
mg/L
≤ 10
> 10 ≤ 40
> 40
Normalhexane
** 2,5-hexandione, Urine
mg/L
≤ 2
> 2 ≤ 5
> 5
Lead
Blood lead
μg/dL
≤ 20
> 20 ≤ 40
> 40
* δ-aminolevulinic acid, Urine
mg/L
≤ 5
> 5 ≤ 10
> 10
Styrene
*** Styrene metabolites, Urine ※1
g/L
Distribution will not be reported.
Trichloroethylene
*** Trichloro compounds, Urine, total
mg/L
≤ 100
> 100 ≤ 300
> 300
*** Trichloroacetic acid, Urine
mg/L
≤ 30
> 30 ≤ 100
> 100
Tetrachloroethylene
*** Trichloro compounds, Urine, total
mg/L
≤ 3
> 3 ≤ 10
> 10
*** Trichloroacetic acid, Urine
mg/L
≤ 3
> 3 ≤ 10
> 10
※1: The measured value is the sum of mandelic acid and phenylglyoxylic acid.
In November 2014, styrene, trichloroethylene, and tetrachloroethylene were excluded
from the substances regulated under the Ordinance on the Prevention of Organic Solvent
Poisoning and included in the substances regulated under the Ordinance
on Prevention of Dangers Due to Specified Chemical Substances.
Sample handling method
* Store samples in light-shielding containers.
** Collect urine at the end of the work on a day other than the first day of consecutive working days.
Please note that urine needs to be excreted once 2 hours before collecting a sample.
*** Collect urine at the end of the work on a weekend working day.
Please note that urine needs to be excreted once 2 hours before collecting a sample.
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