GHS Classification Guidance for the Japanese Government

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flame-resistance is not clearly defined. Accordingly, in this classification, only if the substance is confirmed to be noncombustible based on the prescribed review documents, “Not classified” is to be indicated in the “Classification result” column. (see p.22) C) Classification based on data from prescribed literatures Regarding GHS classification of flammable liquids, categories based on flash points obtained from the prescribed review documents shall take precedence, and classification based on TDG shall be adopted only when flash points data are not available. Since Category 4 of flammable liquids in GHS classification does not fall under Dangerous Goods in TDG classification, it can only be classified based on information from the prescribed review documents. For class 4 substances of the Fire Defense Law, data such as flash points and initial boiling points (or boiling points) are available, and they may be utilized. When the measurement according to the Fire Defense Law was performed with open-cup method (when flash points are 80°C or higher), the measurement differs from the definition of GHS. Judgment must be made with caution in this case. Note:Although measurement of flash point is fundamentally performed with “closed-cup (4)Data availability test method”, “open-cup tests” are admitted in special cases.(the UN GHS second revised edition 2.6.4.2.4)In Japan, where data according to the Fire Defense Law have been accumulated, this provision may be utilized. Since flash points obtained with “open-cup tests” are considered to be higher by several °C than that with “closed-cup test method”, when flash points are about 110°C or higher, the substances shall be deemed “Not classified” regardless of the test method. However, when the measurement results with “open-cup tests” are 90-110°C, the substances can be “Not classified” or otherwise in accordance with the measuring method based on GHS. If data with “closed-cup test method” are not available, the substances shall fall under “Classification not possible”. Since such measurements are obligatory under the Fire Defense Law, data can be obtained relatively easily even for articles. However, the law requires the “open-cup method” for the measurement of high flash points, which poses a problem around the upper limit of Category 4. (5)Comparison with conventional classification systems In general, Categories 1-3 accords with Class 3 of UNRTDG. Category 1 =UNRTDG3Ⅰ(No upper limits are provided for flash points, but no combustible substance with an initial boiling point of 35°C and lower and a flash point of 23°C or higher has been reported.) Category 2 =UNRTDG3 II 52
Category 3 =UNRTDG3 III Category 4 =They are non-dangerous articles in UNRTDG. The categories of EU classification differ from that of GHS (R12, 11, and 10 only serve as reference). (6)Sources of information for classification results under conventional systems Relevant Laws and regulations according to the suitable UNRTDG, such as the Dangerous Goods Regulations (Japan), can be applied to Categories 1, 2, and 3, through the procedures described in the previous section. If data are available, classification can be based on flash points (and boiling points). (Example of category 1)UNRTDG3Ⅰ 1093 ACRYLONITRILE, STABILISED 1131 CARBON DISULPHIDE 2481 ETHYL ISOCYANATE (Example of category 2)UNRTDG3 II 1090 ACETONE 1154 DIETHYLAMINE 1717 ACETYL CHLORIDE 1230 METHANOL (Example of category 3)UNRTDG3 III 1157 DIISOBUTYL KETONE 2260 TRIPROPYLAMINE 2529 ISOBUTYRIC ACID (Example of category 4)DIVINYLBENZENE N-ETHYLANILINE ETHYLENE CYANOHYDRIN NITROBENZENE 53
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GHS Classification Guidance for the
Page 4 and 5:
2-3-12 Substances and mixtures whic
Page 6 and 7: Japanese judgments and consideratio
Page 8 and 9: (2) Points to remember when describ
Page 10 and 11: ① ② Information Gathering Class
Page 13 and 14: Part2. Physical Hazards Guidance 2-
Page 15 and 16: described in the next section is of
Page 17 and 18: Information in the book can be sear
Page 19 and 20: (8) International Chemical Safety C
Page 21 and 22: guidelines can be compared with GHS
Page 23 and 24: “Liquids” are defined as substa
Page 25 and 26: When a substance does not contain c
Page 27 and 28: Table 2-2 Filled examples of "Not a
Page 29 and 30: oxygen balance = -1600 [2x +(y/2) -
Page 31 and 32: GHS classification 8)Self-reactive
Page 33 and 34: The “Dangerous Goods Regulations,
Page 35 and 36: 4.2 4.3 5.1(I) 5.1(II) 5.1(III) 6.1
Page 37 and 38: Table 2-5 Filled examples of “Cla
Page 39 and 40: explosion hazard: (i) combustion of
Page 41 and 42: water, by mass (n)GUANYLNITROSAMINO
Page 43 and 44: substance 0224 BARIUM AZIDE, dry or
Page 45 and 46: 1337 NITROSTARCH, WETTED with not l
Page 47 and 48: (4) Data availability Physical prop
Page 49 and 50: flame distance (ignition distance)
Page 51 and 52: Nitrogen trifluoride C і = 1.6 Nit
Page 53 and 54: 2-3-5 Gases Under Pressure (1)Defin
Page 55: 2-3-6 Flammable Liquids (1)Definiti
Page 59 and 60: Table 2.7.1: Criteria for flammable
Page 61 and 62: 2-3-8 Self-reactive Substances and
Page 63 and 64: 2.8.2.3 Criteria for temperature co
Page 65 and 66: 3225 There is no article with a spe
Page 67 and 68: classified according to it. If not,
Page 69 and 70: classified”. Reference: UN GHS se
Page 71 and 72: Table 2.11.1: Criteria for self-hea
Page 73 and 74: than 30% water of crystallization 1
Page 75 and 76: transport, the same chemical is to
Page 77 and 78: 138: Water-reactive substances - em
Page 79 and 80: orohydrides, alkyl compounds, etc.)
Page 81 and 82: 2-3-13 Oxidizing Liquids (1)Definit
Page 83 and 84: 2-1-14 Oxidizing Solids (1)Definiti
Page 85 and 86: (Example of category 3)2067 AMMONIU
Page 87 and 88: this class, according to the follow
Page 89 and 90: The flow chart of 2.15.2.2 is exact
Page 91 and 92: 2-3-16 Corrosive to Metals (1)Defin
Page 93: Note: In GHS, it is defined that if
Page 96 and 97: 1-1) Organization National Institut
Page 98 and 99: URL http://www.ecetoc.org/publicati
Page 100 and 101: List 2: Useful information sources
Page 102 and 103: http://www.cdc.gov/niosh/npg/npgdrt
Page 104 and 105: 3-1-3 Management of information in
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Relation between concentration(ppm)
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follows: Category 1 (100 ppmV), Cat
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(ii) the appropriate conversion val
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UNRTDG Class 6.1 is not sub-categor
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possible” unless the obvious conc
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whereas the reference value is set
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3-2-2 Skin Corrosion/Irritation (1)
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Table 3.2.2 Skin irritation categor
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possible, and to classify the subst
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and scaling persist to the end of 1
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【GHS 2 nd revised edition】 Figu
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[Note for the above figure] (a) Cla
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B) Classification criteria in GHS (
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(4)Guidance for classification and
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G) Strategy of testing and evaluati
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2c Structure activity Skin corrosiv
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done in parallel. This stage should
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criteria given below:” a) If ther
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[Decision Criteria 1]: In the cases
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substance shall be classified in Ca
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The classification is based on any
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7) Data from various kinds of tests
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Table 3-8 Test data as the basis of
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Category 1B. Mutagens classified a
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c)Exceptionally, strong positive re
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3-2-6 Carcinogenicity (1)Definition
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The principles of GHS classificatio
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B) Substance for which GHS classifi
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metabolic system, a cautious invest
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hazard warning for pregnant women a
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OECD414 Prenatal development toxici
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D) Decision logic and classificatio
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e considered to be sufficient. (Sub
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No. Test guideline Limit dose 414 P
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3-2-8 Specific Target Organ Toxicit
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specifically for these effects as d
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existing MSDSs. A literature search
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* Unless a description that definit
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g) When the affected organ can be i
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3-2-9 Specific Target Organ Toxicit
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Table 3-16: Guidance value ranges f
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(c) Any consistent and significant
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has received some degree of approva
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As for the classification of specif
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formed in the mouth, which then may
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The classification criteria refer t
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194
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(1)Sources for test data for Hazard
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List 2: Useful information sources
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3-3)EU classification When classif
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4-2 Classification of Hazardous to
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water solubility, and which are not
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Tests shall be conducted by using f
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e categorized based on chronic aqua
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endpoint. When it is not clear whet
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that the relevant information sourc
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214
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R39 Danger of very serious irrevers
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R52 Harmful to aquatic organisms. R
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GHS Classification Guidance for the Japanese Government

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