Occupational Medicine (Organic solvents, Lead) Related Test
The occupational medicine-related test is mainly intended to
regularly check the level of organic solvents or lead intake
in the living body for organic solvents and lead workers.
Therefore, the evaluation of the results requires a comprehensive judgment including the work environment,
rather than the one intended to differentiate normality and abnormality.
In addition, each Regulation on Prevention of Poisoning based on the Industrial Safety
and Health Act stipulates that each report of the results of a medical examination shall
be submitted to the Chief of the Labour Standard Inspection Offices in charge.
From the Report of the Results of a Medical Examination for Organic Solvents
(Regulation on Prevention of Organic Solvent Poisoning, Form No. 3-2),
the Report of the Results of a Medical Examination for Lead
(Regulation on Prevention of Lead Poisoning, Form No. 3)
Distribution Table for the Organic Solvents, Lead-Related Test Results
Target Substance
Measurement Item
Unit
Distribution
1
2
3
Toluene
** Urinary hippuric acid
g/L
1 or less
More than 1, 2.5 or less
More than 2.5
Xylene
** Urinary methylhippuric acid
g/L
0.5 or less
More than 0.5, 1.5 or less
More than 1.5
1,1,1-Trichloroethane
*** Urinary total trichloride
mg/L
10 or less
More than 10, 40 or less
More than 40
*** Urinary trichloroacetic acid
mg/L
3 or less
More than 3, 10 or less
More than 10
N,N-Dimethylformamide
** Urinary N-methylformamide
mg/L
10 or less
More than 10, 40 or less
More than 40
Normal hexane
** Urinary 2,5-hexanedione
mg/L
2 or less
More than 2, 5 or less
More than 5
Lead
Blood lead
μg/dL
20 or less
More than 20, 40 or less
More than 40
* Urinary delta-aminolevulinic acid
mg/L
5 or less
More than 5, 10 or less
More than 10
Styrene
*** Urinary styrene metabolite *1
g/L
We will not report the distribution.
Trichloroethylene
*** Urinary total trichloride
mg/L
100 or less
More than 100, 300 or less
More than 300
*** Urinary trichloroacetic acid
mg/L
30 or less
More than 30, 100 or less
More than 100
Tetrachloroethylene
*** Urinary total trichloride
mg/L
3 or less
More than 3, 10 or less
More than 10
*** Urinary trichloroacetic acid
mg/L
3 or less
More than 3, 10 or less
More than 10
*1: Measurement values are the sum of mandelic acid and phenylglyoxylic acid.
Since November 2014, styrene, trichloroethylene, and tetrachloroethylene have been positioned
from the subjects of the Regulation on Prevention of Organic Solvent Poisoning to
those of the Regulation on Prevention of Hazards due to Specified Chemical Substances.
Specimen Handling
* Store in light-resistant containers.
** Sample urine at the end of work except for the first day of consecutive working days. However,
urinate once 2 hours before urine sampling.
*** Sample urine at the end of work on weekend working days. However,
urinate once 2 hours before urine sampling.
