GHS Classification Guidance for the Japanese Government

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Grounds” with “No established test method suitable for low-temperature boiling Liquids”. In the case of solid with a melting point of higher than 55°C, fill in “Classification result” with “Classification not possible” regarding “Corrosive to Metals”, and fill in “Classification Grounds” with “No established test method suitable for Solid substances”. For all cases mentioned above, it is also permissible to simply indicate “No data.” 2) In case of “Classification not possible” because of lack of data For hazard items that cannot be classified by the above procedure, fill in “Classification result” with “Classification not possible”, and fill in “Classification Grounds” with “No data”. (4)Data availability Few numerical data on metal corrosion rate have been published. (5)Comparison with conventional classification systems The definition completely accords with that of the Class 8PkgIII “Metal corrosivity” described in UNRTDG2.8.2.5(c)(ii). (6)Sources of information for classification results under conventional systems Since metal corrosivity is classified into UNRTDG Class 8 along with skin corrosivity, whether a substance has metal corrosivity or not cannot be judged from the fact that the substance is classified in Class 8. Metal corrosivity thus cannot be attributed to a substance based on “Dangerous Goods Regulations Annex 1” alone. Therefore, a substance that clearly has metal corrosivity shall be classified into this class. If it is not clear whether a substance has metal corrosivity, indicate “presumed” on the label for the substance. GHS classification is based on UNRTDG, which was developed in relation to the leakage treatment of substances. It should be noted that even if a substance does not fall under this class, it still has a possibility to give damage to a container or pipe for storage or use. In the test of metal corrosivity, metal pieces (steel and aluminum) are immersed in a liquid (55°C) for 7 to 28 days, and if the corrosion length gets to 6.25 mm (annualized value) or more, the liquid is judged corrosive. As mentioned above, this criterion for corrosivity was defined in light of the risk that the leakage of a liquid gives damage to a container of transport equipment or other freights when the leakage is not immediately treated. Thus, a different criterion should be applied when determining whether or not a metal can be used for the container or pipe of the liquid. If a liquid is corrosive, even if to a minimal extent, the use of a metal for its container impairs the liquid. In the definition of metal corrosivity in GHS, such a kind of criterion has not been adopted. 88
Note: In GHS, it is defined that if test data for a substance, acquired based on the prescribed test method, cannot be obtained from reliable sources, the substance shall be classified as “Classification not possible”. Therefore, some of gasses which are known to impair metals, such as ammonia gas and hydrogen chloride gas, are fall under “Classification not possible” because the test methods for them have not been defined. 89
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GHS Classification Guidance for the
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2-3-12 Substances and mixtures whic
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Japanese judgments and consideratio
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(2) Points to remember when describ
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① ② Information Gathering Class
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Part2. Physical Hazards Guidance 2-
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described in the next section is of
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Information in the book can be sear
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(8) International Chemical Safety C
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guidelines can be compared with GHS
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“Liquids” are defined as substa
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When a substance does not contain c
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Table 2-2 Filled examples of "Not a
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oxygen balance = -1600 [2x +(y/2) -
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GHS classification 8)Self-reactive
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The “Dangerous Goods Regulations,
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4.2 4.3 5.1(I) 5.1(II) 5.1(III) 6.1
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Table 2-5 Filled examples of “Cla
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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 and 56: 2-3-6 Flammable Liquids (1)Definiti
Page 57 and 58: Category 3 =UNRTDG3 III Category 4
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: 2-3-16 Corrosive to Metals (1)Defin
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
Page 106 and 107: Relation between concentration(ppm)
Page 108 and 109: follows: Category 1 (100 ppmV), Cat
Page 110 and 111: (ii) the appropriate conversion val
Page 112 and 113: UNRTDG Class 6.1 is not sub-categor
Page 114 and 115: possible” unless the obvious conc
Page 116 and 117: whereas the reference value is set
Page 118 and 119: 3-2-2 Skin Corrosion/Irritation (1)
Page 120 and 121: Table 3.2.2 Skin irritation categor
Page 122 and 123: possible, and to classify the subst
Page 124 and 125: and scaling persist to the end of 1
Page 126 and 127: 【GHS 2 nd revised edition】 Figu
Page 128 and 129: [Note for the above figure] (a) Cla
Page 130 and 131: B) Classification criteria in GHS (
Page 132 and 133: (4)Guidance for classification and
Page 134 and 135: G) Strategy of testing and evaluati
Page 136 and 137: 2c Structure activity Skin corrosiv
Page 138 and 139: done in parallel. This stage should
Page 140 and 141: 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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