GB 30000.1-2024Specification for classification and labelling of chemicals - Part 1: General rules (English PDF)

4.1.3 Classification criteria GB 30000.2 ~

GB 30000.29 respectively provide detailed provisions for a specific hazard class or a group of closely related hazard classes. For most hazard class, the classification process for mixtures is based on the following sequence.

a) If there is test data for the entire mixture, the classification of the mixture will always be based on that data;

b) If there is no test data for the mixture itself, consider the bridging principles listed in GB 30000.2 ~

GB 30000.29 to see if those principles can be used to classify the mixture. If the test data clearly indicate that no classification is required, the bridging principles can also be applied;

c) In addition, for health and environmental hazards, if there is no test data for the mixture itself and the existing information is insufficient to apply the bridging principles, then the agreed method of estimating the hazard based on the known information is used to classify the mixture.

Note. In most cases, it is not possible to master the hazard classifications for germ cell mutagenicity, carcinogenicity and reproductive toxicity for all mixtures. For these hazard classifications, the mixture is generally classified based on the information on the individual ingredients in the mixture that has been mastered, using the critical value/concentration limit method in GB 30000.2 ~

GB 30000.29.The classification can be modified based on the complete experimental data of the mixture according to the specific situation, provided that the relevant data is reliable according to the requirements of the above standards.

4.2.1 Use of critical values/concentration limits

4.2.1.1 When classifying untested mixtures based on the hazards of the ingredients, some hazard categories use the general critical values/concentration limits of the classified ingredients of the mixture to classify the mixture. The general critical values/concentration limits used are sufficient to determine the hazards of most mixtures, but some mixtures may also contain hazardous ingredients at concentrations lower than the general critical values/concentration limits, which still pose some identifiable hazards. There may also be situations where the unified critical value/concentration limit is much lower than expected based on the determined non- hazardous level of a certain ingredient.

4.2.1.2 If conclusive data show that the hazard of an ingredient is not apparent above the general cut-off values/concentration limits adopted in this series of documents, the mixture may be classified according to these data. The possibility that the ingredients behave in the mixture in a manner that would increase the hazard compared to the pure substances shall be excluded. In addition, the mixture shall not contain ingredients that could affect such a classification decision.

4.2.1.3 Appropriate documentation supporting the use of any values other than the general cut-off values/concentration limits shall be maintained for review when required.

4.2.2 Synergistic or antagonistic effects When classifying a mixture, it should consider all available information on the possible synergistic effects among the ingredients of the mixture. Downgrading the classification of a mixture to a less hazardous category based on antagonistic effects can only be done, if the classification decision is supported by sufficient data.

5.1 Preparation procedure

5.1.1 General procedure The preparation of chemical safety labels shall comply with the provisions of GB 15258. The preparation procedure includes.

a) Assignment of label elements;

b) Determination of the order of multiple hazards and information;

c) Arrangement of the display of label elements;

d) Special label arrangements.

5.1.2 Label elements

5.1.2.1 For each hazard category, the normative appendixes on classification and label elements in GB 30000.2 ~ GB 30000.29 all list in detail the label elements (hazard symbols, signal words, hazard statements) assigned to each hazard category in Tables. Hazard categories reflect the standard for unified classification.

Note. "Signal words" are also called "warning words" in some documents.

5.1.2.2 Hazard symbols shall comply with the provisions of Figure 1.

Note. Except for the new symbols to be used for certain health hazards and the exclamation mark, these symbols are part of a set of standard symbols used in the United Nations Recommendations on the Transport of Dangerous Goods Model Regulations. 2) The hazard statement code is only for reference and is not part of the hazard statement text and shall not be used to replace the hazard statement text.

c) Precautionary statements. Precautionary statements shall comply with the following requirements. 1) Used to describe the measures recommended to minimize or prevent adverse effects caused by contact with hazardous substances or improper storage or handling of them. Chemical safety labels shall include appropriate protective information. GB 30000.2 ~ GB 30000.29 lists the precautionary statements that can be used for each hazard class. 2) The precautionary statement code is only for reference. This code is not part of the precautionary statement text and shall not be used to replace the precautionary statement text. 3) In some cases where the requirements of the competent authorities are followed, the precautionary statement statements can be combined by using the plus sign "+" to connect the codes. When the precautionary measures required for different hazard classes are similar, the precautionary statements can also be combined. 4) Subject to the requirements of the competent authorities, precautionary statements on chemical safety labels or safety data sheets may use slightly different text from that specified in this document, as long as these variations help convey safety information and do not dilute or detract from the meaning of the safety advice. Variations may include synonyms or other equivalent terms applicable to the place where the product is supplied and used. In any case, precautionary information shall be conveyed in simple and clear language. In addition, to ensure that the safety information is clear, any text variations used on the label and the safety data sheet shall be consistent.

d) Pictograms. Pictograms shall comply with the following requirements. 1) Pictograms refer to a graphic composition that may include a hazard symbol plus other graphic elements, such as borders, background patterns or colors, used to convey specific information; 2) Pictograms shall be diamonds set at a certain point; 3) Pictograms shall use black symbols on a white background with a red border that is wide enough to be eye-catching. In the case of domestic use, the border can be black.

Note. In addition to being used in pictograms, colors can also be used in other areas of the label to meet special labeling requirements. statement H318 "Causes serious eye damage" may be omitted.

5.1.5 Arrangement of display of label elements

5.1.5.1 Position of elements on the label The position of pictograms, signal words, hazard statements on the label shall comply with the provisions of GB 15258.

5.1.5.2 Supplementary information Supplementary information that does not violate the relevant provisions of this series of documents is allowed. The placement of supplementary information shall not hinder the identification of label element information.

5.1.5.3 Labels for small packages Small package labels shall meet the following requirements.

a) All applicable chemical safety label content shall be displayed on the container directly containing the hazardous substance or mixture as much as possible.

b) If it is not possible to place all applicable chemical safety label content on the direct container, other methods can be used to provide all hazard information. The main factors affecting this practice include. 1) The shape or size of the direct container; 2) The number of chemical safety label elements that need to be included, especially when the substance or mixture meets the classification criteria of multiple hazard categories.

c) If the quantity of the hazardous substance or mixture is small, the supplier has data to show that it is not likely to harm human health and/or the environment, meanwhile it has been confirmed that there is no possibility of harming human health and/or the environment, the label content can be omitted from the direct container.

d) Subject to compliance with relevant regulations, when the quantity of the substance or mixture is below a certain amount, certain label content of certain hazard categories or classifications can be omitted from the direct container.

e) Some label content on the direct container may need to be retained throughout the life cycle of the product, for example, to facilitate continued use by workers or consumers.

5.1.6 Special labeling arrangements

5.1.6.1 Principle For metals and alloys, where they are supplied in a blocky, non-dispersible form, hazard information can be disclosed only through the material safety data sheet, subject to compliance with relevant regulations. When the substance or mixture is classified as corrosive to metals but not corrosive to skin and/or eyes, the hazard pictogram related to "metal corrosives" can be omitted from the label of the final product in good packaging for consumer use, subject to compliance with relevant regulations.

5.1.6.2 Labeling in the workplace Chemicals within the scope of this document shall be labeled appropriately when provided to the workplace. Labeling requirements shall be implemented in accordance with GB/T 30000.31.In the workplace, labels shall always remain on the containers provided. If there is a form that is more suitable for the workplace and can effectively publicize chemical information, alternative means are allowed to provide the same information to workers in different written or displayed formats. For example, label information can be displayed in the work area instead of on individual containers.

5.1.6.3 Consumer product labeling based on the possibility of injury Subject to the relevant regulations, consumer products (i.e., goods that can be purchased directly on the market by the general public) can use a consumer product labeling system, that provides information based on the possibility of injury (consumer product labeling based on the possibility of injury). The risk assessment principles for consumer product labels based on the possibility of injury are referred to GB/T 36499.

5.1.6.4 Tactile warnings If tactile warnings are used, the technical specifications shall comply with GB/T 35929.

6.1 General provisions

6.1.1 Material Safety Data Sheet shall be prepared for substances and mixtures, that meet the physical, health or environmental hazard classification criteria in 4.1.1, and all mixtures whose ingredients meet the carcinogenicity, reproductive toxicity or target organ toxicity criteria and whose concentrations exceed the critical value/concentration limit specified in the mixture standard in Table

1.For mixtures that do not meet the hazard classification criteria but contain hazardous ingredients at a certain concentration, the competent authority may also require the provision of a material safety data sheet.

Note. For the structure, content, general form of the material safety data sheet, please refer to GB/T 16483. (referring to the date of the last revision).

6.2 Format of material safety data sheet The information in the material safety data sheet shall be provided in the following order using the following 16 headings. 1) Chemical and enterprise identification; 2) Hazard overview; 3) Ingredients/composition information; 4) First aid measures; 5) Firefighting measures; 6) Emergency treatment of leaks; 7) Handling and storage; 8) Contact control and personal protection; 9) Physical and chemical properties; 10) Stability and reactivity; 11) Toxicological information; 12) Ecological information; 13) Waste disposal; 14) Transport information; 15) Regulatory information; 16) Other information.

6.3 Contents of the material safety data sheet

6.3.1 If applicable and available, the minimum information given in GB/T 16483 shall be listed under the relevant headings of the safety data sheet. If the specific information under a particular subheading is not applicable or not available, it shall be clearly stated. No blanks shall be left on the safety data sheet.