GHS Classification Result （Revision of the past classification result）

Chemical Name：Styrene
CAS：100-42-5

Result：
ID: 151
Classifier: Ministry of Economy, Trade and Industry （METI）
Year Classified: FY2007
Reference Manual: GHS Classification Manual （10 Feb, 2006）

PHYSICAL HAZARDS
Hazard class Classification Symbol Signal word Hazard statement Precautionary statement Rationale for the classification
1 Explosives - - - - - -
2 Flammable gases （including chemically unstable gases） - - - - - -
3 Aerosols - - - - - -
4 Oxidizing gases - - - - - -
5 Gases under pressure - - - - - -
6 Flammable liquids - - - - - -
7 Flammable solids - - - - - -
8 Self-reactive substances and mixtures - - - - - -
9 Pyrophoric liquids - - - - - -
10 Pyrophoric solids - - - - - -
11 Self-heating substances and mixtures - - - - - -
12 Substances and mixtures which, in contact with water, emit flammable gases - - - - - -
13 Oxidizing liquids - - - - - -
14 Oxidizing solids - - - - - -
15 Organic peroxides - - - - - -
16 Corrosive to metals - - - - - -

HEALTH HAZARDS
Hazard class Classification Symbol Signal word Hazard statement Precautionary statement Rationale for the classification
1 Acute toxicity （Oral） - - - - - -
1 Acute toxicity （Dermal） - - - - - -
1 Acute toxicity （Inhalation: Gases） - - - - - -
1 Acute toxicity （Inhalation: Vapours） - - - - - -
1 Acute toxicity （Inhalation: Dusts and mists） - - - - - -
2 Skin corrosion/irritation - - - - - -
3 Serious eye damage/eye irritation - - - - - -
4 Respiratory sensitization - - - - - -
4 Skin sensitization - - - - - -
5 Germ cell mutagenicity - - - - - -
6 Carcinogenicity Not classified - - - - The IPCS paper presented by public comments is reliable since it is created by IPCS, is based on latest research, solved a generating mechanism of the lung tumor acknowledged in mice as a phenomenon peculiar to mice, therefore, and it concluded that "it cannot be extrapolated to human lung cancer." Moreover, the human epidemiological data, based on which IARC (2002) carries out classification, is on cancer of lymphatic system and blood system. On the other hand, EU RAR (Draft, Nov. 2007) summarizes as follows; "no definite causal relationship between specific cancer mortality rate and styrene exposure is found at the styrene handling and manufacturing site, and the causative substance of the cancer of lymphatic system and blood system observed at the Styrene and Butadiene manufacturing site is likely to be butadiene. Considering all of the above, it is defined as "Not classified".
7 Reproductive toxicity - - - - - -
8 Specific target organ toxicity - Single exposure - - - - - -
9 Specific target organ toxicity - Repeated exposure - - - - - -
10 Aspiration hazard - - - - - -

ENVIRONMENTAL HAZARDS
Hazard class Classification Symbol Signal word Hazard statement Precautionary statement Rationale for the classification
11 Hazardous to the aquatic environment （Acute） - - - - - -
11 Hazardous to the aquatic environment （Long-term） - - - - - -


NOTE:
* Classification was conducted by relevant Japanese Ministries in accordance with GHS Classification Guidance for the Japanese Government, and is intended to provide a reference for preparing GHS labelling and SDS for users.
* This is a provisional English translation of classification results and is subject to revision without notice.
* The responsibility for any resulting GHS labelling and SDS referenced from this site is with users.

Reference：
Reference Manual
Definitions / Abbreviations
Model Label by MHLW

 MHLW Website （in Japanese Only）
Model SDS by MHLW

 MHLW Website （in Japanese Only）

To GHS Information