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GHS Classification Guidance for the Japanese Government

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3-2 <strong>Classification</strong> of health hazards<br />

3-2-1 Acute Toxicity<br />

(1)Definitions<br />

Definitions of Acute Toxicity in UN <strong>GHS</strong> are as follows, and <strong>the</strong>y are adopted in this guidance.<br />

【<strong>GHS</strong> 2 nd revised edition】(3.1.1)<br />

Acute toxicity refers to those adverse effects occurring following oral or dermal<br />

administration of a single dose of a substance, or multiple doses given within 24 hours, or an<br />

inhalation exposure of 4 hours.<br />

(2)<strong>Classification</strong> criteria<br />

A) <strong>Classification</strong> criteria based on JIS <strong>Classification</strong><br />

Table 3-1: Acute toxicity hazard categories and acute toxicity estimate (ATE) values<br />

defining <strong>the</strong> respective categories<br />

Exposure route Category 1 Category 2 Category 3 Category 4<br />

Oral(mg/kg<br />

bodyweight)<br />

Dermal(mg/kg<br />

bodyweight)<br />

ATE≤5 5

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