GHS Classification Guidance for the Japanese Government

Examples of the functional groups are as follows:
Inter-reacting group Aminonitriles, haloanilines, organic salts of oxidizing acids
S=O Halogenated sulfonyl compounds, sulfonyl cyanides, sulfonyl
hydrazides
P–O Phosphites
Strained ring Epoxides, aziridines
Unsaturated bond Olefines, oxidized cyanides
N–halogen Chloroamines, fluoroamines
O–halogen Chlorates, perchlorates, iodosyl compounds
(UNRTDG: Manual of Tests and Criteria, Appendix 6, Table A6.2)
2-2-8 Guidance for classification and examples of classification results indication
This section schematically explains guidelines for classification and illustrates classification
results indication for 16 types of physical hazards. When you are actually engaged in
classification, please refer to items on each hazard in sections 2-3.
(1) Judgment of Not applicable
A) A substance the state of which is different from the definition for the relevant GHS hazard
class or which does not meet the definition in terms of chemical structure, according to Table
2-1, shall be designated as “not applicable” with regard to that class.
B) In case a substance meets conditions for a hazard class with higher priority:
Example: A substance that should be considered as “self-reactive substances and mixtures”
contains explosive or self-reacting chemical groups and is classified as “explosives”, “organic
peroxides”, “oxidizing liquids”, or “oxidizing solids.”
Example entry:Not applicable (classified as “explosives”)
A substance that should be considered as “self-heating substances and
mixtures” is classified as either “pyrophoric liquids” or “pyrophoric
solids.”
Example entry:not applicable (classified as “pyrophoric liquids”)
Table 2-2 shows example entries for grounds for classification of substances that are judged to be
“not applicable” based on A) or B).
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