Hazard statements form part of the Globally Harmonized System of Classification and Labelling of Chemicals (GHS). They are intended to form a set of standardized phrases about the hazards of chemical substances and mixtures that can be translated into different languages. [1] [2] As such, they serve the same purpose as the well-known R-phrases, which they are intended to replace.
Hazard statements are one of the key elements for the labelling of containers under the GHS, along with: [3]
Each hazard statement is designated a code, starting with the letter H and followed by three digits. Statements which correspond to related hazards are grouped together by code number, so the numbering is not consecutive. The code is used for reference purposes, for example to help with translations, but it is the actual phrase which should appear on labels and safety data sheets. [4]
H-phrases Physical Hazards [5] | |
---|---|
Code | Phrase |
H200 | Unstable explosive |
H201 | Explosive: mass explosion hazard |
H202 | Explosive: severe projection hazard |
H203 | Explosive: fire, blast or projection hazard |
H204 | Fire or projection hazard |
H205 | May mass explode in fire |
H206 | Fire, blast or projection hazard: increased risk of explosion if desensitizing agent is reduced |
H207 | Fire or projection hazard; increased risk of explosion if desensitizing agent is reduced |
H208 | Fire hazard; increased risk of explosion if desensitizing agent is reduced |
H209 | Explosive |
H210 | Very sensitive |
H211 | May be sensitive |
H220 | Extremely flammable gas |
H221 | Flammable gas |
H222 | Extremely flammable material |
H223 | Flammable material |
H224 | Extremely flammable liquid and vapour |
H225 | Highly flammable liquid and vapour |
H226 | Flammable liquid and vapour |
H227 | Combustible liquid |
H228 | Flammable solid |
H229 | Pressurized container: may burst if heated |
H230 | May react explosively even in the absence of air |
H231 | May react explosively even in the absence of air at elevated pressure and/or temperature |
H240 | Heating may cause an explosion |
H241 | Heating may cause a fire or explosion |
H242 | Heating may cause a fire |
H250 | Catches fire spontaneously if exposed to air |
H251 | Self-heating: may catch fire |
H252 | Self-heating in large quantities: may catch fire |
H260 | In contact with water releases flammable gases which may ignite spontaneously |
H261 | In contact with water releases flammable gas |
H270 | May cause or intensify fire: oxidizer |
H271 | May cause fire or explosion: strong oxidizer |
H272 | May intensify fire: OXIDISER |
H280 | Contains gas under pressure: may explode if heated |
H281 | Contains refrigerated gas: may cause cryogenic burns or injury |
H282 | Extremely flammable chemical under pressure: May explode if heated |
H283 | Flammable chemical under pressure: May explode if heated |
H284 | Chemical under pressure: May explode if heated |
H290 | May be corrosive to metals |
H-phrases Health Hazards [5] | |
---|---|
Code | Phrase |
H300 | Fatal if swallowed |
H300+H310 | Fatal if swallowed or in contact with skin |
H300+H310+H330 | Fatal if swallowed, in contact with skin or if inhaled |
H300+H330 | Fatal if swallowed or if inhaled |
H301 | Toxic if swallowed |
H301+H311 | Toxic if swallowed or in contact with skin |
H301+H311+H331 | Toxic if swallowed, in contact with skin or if inhaled |
H301+H331 | Toxic if swallowed or if inhaled |
H302 | Harmful if swallowed |
H302+H312 | Harmful if swallowed or in contact with skin |
H302+H312+H332 | Harmful if swallowed, in contact with skin or if inhaled |
H302+H332 | Harmful if swallowed or inhaled |
H303 | May be harmful if swallowed |
H303+H313 | May be harmful if swallowed or in contact with skin |
H303+H313+H333 | May be harmful if swallowed, in contact with skin or if inhaled |
H303+H333 | May be harmful if swallowed or if inhaled |
H304 | May be fatal if swallowed and enters airways |
H305 | May be harmful if swallowed and enters airways |
H310 | Fatal in contact with skin |
H310+H330 | Fatal in contact with skin or if inhaled |
H311 | Toxic in contact with skin |
H311+H331 | Toxic in contact with skin or if inhaled |
H312 | Harmful in contact with skin |
H312+H332 | Harmful in contact with skin or if inhaled |
H313 | May be harmful in contact with skin |
H313+H333 | May be harmful in contact with skin or if inhaled |
H314 | Causes severe skin burns and eye damage |
H315 | Causes skin irritation |
H315+H320 | Causes skin and eye irritation |
H316 | Causes mild skin irritation |
H317 | May cause an allergic skin reaction |
H318 | Causes serious eye damage |
H319 | Causes serious eye irritation |
H320 | Causes eye irritation |
H330 | Fatal if inhaled |
H331 | Toxic if inhaled |
H332 | Harmful if inhaled |
H333 | May be harmful if inhaled |
H334 | May cause allergy or asthma symptoms or breathing difficulties if inhaled |
H335 | May cause respiratory irritation |
H336 | May cause drowsiness or dizziness |
H340 | May cause genetic defects |
H341 | Suspected of causing genetic defects |
H350 | May cause cancer |
H350i | May cause cancer by inhalation |
H351 | Suspected of causing cancer |
H360 | May damage fertility or the unborn child |
H360D | May damage the unborn child |
H360Df | May damage the unborn child. Suspected of damaging fertility. |
H360F | May damage fertility |
H360FD | May damage fertility. May damage the unborn child. |
H360Fd | May damage fertility. Suspected of damaging the unborn child. |
H361 | Suspected of damaging fertility or the unborn child |
H361d | Suspected of damaging the unborn child |
H361f | Suspected of damaging fertility |
H361fd | Suspected of damaging fertility. Suspected of damaging the unborn child. |
H362 | May cause harm to breast-fed children |
H370 | Causes damage to organs |
H371 | May cause damage to organs |
H372 | Causes damage to organs through prolonged or repeated exposure |
H373 | May cause damage to organs through prolonged or repeated exposure |
H-phrases Environmental Hazards [5] | |
---|---|
Code | Phrase |
H400 | Very toxic to aquatic life |
H401 | Toxic to aquatic life |
H402 | Harmful to aquatic life |
H410 | Very toxic to aquatic life with long lasting effects |
H411 | Toxic to aquatic life with long lasting effects |
H412 | Harmful to aquatic life with long lasting effects |
H413 | May cause long lasting harmful effects to aquatic life |
H420 | Harms public health and the environment by destroying ozone in the upper atmosphere |
H441 | Very toxic to terrestrial invertebrates |
The European Union has implemented the GHS through the CLP Regulation. Nevertheless, the older system based on the Dangerous Substances Directive was used in parallel until June 2015. Some R-phrases which do not have simple equivalents under the GHS have been retained under the CLP Regulation: [6] the numbering mirrors the number of the previous R-phrase.
Some other hazard statements intended for use in very specific circumstances have also been retained under the CLP Regulation. [7] In this case, the numbering of the EU specific hazard statements can coincide with GHS hazard statements if the "EU" prefix is not included.
The GHS was adopted in Australia from 1 January 2012 and becomes mandatory in States and Territories that have adopted the harmonised Work Health and Safety laws (other than Victoria and Western Australia) as of 1 January 2017. [8] The National Code of Practice for the Preparation of Safety Data Sheets for Hazardous Chemicals [9] includes 12 Australian-specific GHS Hazard Statements, as follows:
As of March 2009, the relevant New Zealand regulations under the Hazardous Substances and New Organisms Act 1996 do not specify the exact wording required for hazard statements. However, the New Zealand classification system includes three categories of environmental hazard which are not included in the GHS Rev.2:
These are classes 9.2–9.4 respectively of the New Zealand classification scheme, and are divided into subclasses according to the degree of hazard. [10] Substances in subclass 9.2D ("Substances that are slightly harmful in the soil environment") do not require a hazard statement, while substances in the other subclasses require an indication of the general degree of hazard and general type of hazard. [11]
{{cite web}}
: CS1 maint: archived copy as title (link)A safety data sheet (SDS), material safety data sheet (MSDS), or product safety data sheet (PSDS) is a document that lists information relating to occupational safety and health for the use of various substances and products. SDSs are a widely used type of fact sheet used to catalogue information on chemical species including chemical compounds and chemical mixtures. SDS information may include instructions for the safe use and potential hazards associated with a particular material or product, along with spill-handling procedures. The older MSDS formats could vary from source to source within a country depending on national requirements; however, the newer SDS format is internationally standardized.
Hazard symbols or warning symbols are recognisable symbols designed to warn about hazardous or dangerous materials, locations, or objects, including electromagnetic fields, electric currents; harsh, toxic or unstable chemicals ; and radioactivity. The use of hazard symbols is often regulated by law and directed by standards organizations. Hazard symbols may appear with different colors, backgrounds, borders, and supplemental information in order to specify the type of hazard and the level of threat. Warning symbols are used in many places in place of or in addition to written warnings as they are quickly recognized and more universally understood, as the same symbol can be recognized as having the same meaning to speakers of different languages.
Chemical hazards are hazards present in hazardous chemicals and hazardous materials. Exposure to certain chemicals can cause acute or long-term adverse health effects. Chemical hazards are usually classified separately from biological hazards (biohazards). Chemical hazards are classified into groups that include asphyxiants, corrosives, irritants, sensitizers, carcinogens, mutagens, teratogens, reactants, and flammables. In the workplace, exposure to chemical hazards is a type of occupational hazard. The use of personal protective equipment may substantially reduce the risk of adverse health effects from contact with hazardous materials.
Dangerous goods (DG), are substances that when transported are a risk to health, safety, property or the environment. Certain dangerous goods that pose risks even when not being transported are known as hazardous materials. An example for dangerous goods is hazardous waste which is waste that has substantial or potential threats to public health or the environment.
Risk and Safety Statements, also known as R/S statements, R/S numbers, R/S phrases, and R/S sentences, is a system of hazard codes and phrases for labeling dangerous chemicals and compounds. The R/S statement of a compound consists of a risk part (R) and a safety part (S), each followed by a combination of numbers. Each number corresponds to a phrase. The phrase corresponding to the letter/number combination has the same meaning in different languages—see 'languages' in the menu on the left.
The Dangerous Substances Directive was one of the main European Union laws concerning chemical safety, until its full replacement by the new regulation CLP Regulation (2008), starting in 2016. It was made under Article 100 of the Treaty of Rome. By agreement, it is also applicable in the EEA, and compliance with the directive will ensure compliance with the relevant Swiss laws. The Directive ceased to be in force on 31 May 2015 and was repealed by Regulation (EC) No 1272/2008 of the European Parliament and of the Council of 16 December 2008 on classification, labelling and packaging of substances and mixtures, amending and repealing Directives 67/548/EEC and 1999/45/EC, and amending Regulation (EC) No 1907/2006.
Environmental hazards are those hazards that affect biomes or ecosystems. Well known examples include oil spills, water pollution, slash and burn deforestation, air pollution, ground fissures, and build-up of atmospheric carbon dioxide. Physical exposure to environmental hazards is usually involuntary
ADR, formally the Agreement of 30 September 1957 concerning the International Carriage of Dangerous Goods by Road is a 1957 United Nations treaty that governs transnational transport of hazardous materials. "ADR" is derived from the French name for the treaty: Accord relatif au transport international des marchandises Dangereuses par Route). Until 31 December 2020, the treaty was fully named European Agreement concerning the International Carriage of Dangerous Goods by Road. However, as the word "European" might have given the impression that the treaty was only open for accession to European states, an amendment was decided in the end of 2019.
The Globally Harmonized System of Classification and Labelling of Chemicals (GHS) is an internationally agreed-upon standard managed by the United Nations that was set up to replace the assortment of hazardous material classification and labelling schemes previously used around the world. Core elements of the GHS include standardized hazard testing criteria, universal warning pictograms, and safety data sheets which provide users of dangerous goods relevant information with consistent organization. The system acts as a complement to the UN numbered system of regulated hazardous material transport. Implementation is managed through the UN Secretariat. Although adoption has taken time, as of 2017, the system has been enacted to significant extents in most major countries of the world. This includes the European Union, which has implemented the United Nations' GHS into EU law as the CLP Regulation, and United States Occupational Safety and Health Administration standards.
The CLP Regulation is a European Union regulation from 2008, which aligns the European Union system of classification, labelling and packaging of chemical substances and mixtures to the Globally Harmonised System (GHS). It is expected to facilitate global trade and the harmonised communication of hazard information of chemicals and to promote regulatory efficiency. It complements the 2006 Registration, Evaluation, Authorisation and Restriction of Chemicals (REACH) Regulation and replaces an older system contained in the Dangerous Substances Directive (67/548/EEC) and the Dangerous Preparations Directive (1999/45/EC).
The regulation of chemicals is the legislative intent of a variety of national laws or international initiatives such as agreements, strategies or conventions. These international initiatives define the policy of further regulations to be implemented locally as well as exposure or emission limits. Often, regulatory agencies oversee the enforcement of these laws.
Precautionary statements form part of the Globally Harmonized System of Classification and Labelling of Chemicals (GHS). They are intended to form a set of standardized phrases giving advice about the correct handling of chemical substances and mixtures, which can be translated into different languages. As such, they serve the same purpose as the well-known S-phrases, which they are intended to replace.
Hazard pictograms form part of the international Globally Harmonized System of Classification and Labelling of Chemicals (GHS). Two sets of pictograms are included within the GHS: one for the labelling of containers and for workplace hazard warnings, and a second for use during the transport of dangerous goods. Either one or the other is chosen, depending on the target audience, but the two are not used together for the same hazard. The two sets of pictograms use the same symbols for the same hazards, although certain symbols are not required for transport pictograms. Transport pictograms come in wider variety of colors and may contain additional information such as a subcategory number.
The Hazard Communication Standard (HCS) requires employers to disclose toxic and hazardous substances in workplaces. This is related to the Worker Protection Standard.
Technical Guidance WM2: Hazardous Waste: Interpretation of the definition and classification of hazardous waste is a guidance document developed and jointly published by the English Environment Agency, Natural Resources Wales, Scottish Environment Protection Agency and the Northern Ireland Environment Agency to provide guidance on the assessment and classification of hazardous waste based on the revised Waste Framework Directive definition of hazardous waste. Waste producers, consultants, contractors and waste management companies use the guidance to a) identify the correct waste code for their waste and b) determine whether the waste is hazardous or not based on its chemical composition.
Chemical storage is the storage of controlled substances or hazardous materials in chemical stores, chemical storage cabinets, or similar devices.
In the process industry, chemical industry, manufacturing industry, and other commercial and industrial contexts, pipe marking is used to identify the contents, properties and flow direction of fluids in piping. It is typically carried out by marking piping through labels and color codes. Pipe marking helps personnel and fire response teams identify the correct pipes for operational, maintenance or emergency response purposes.
Chemical safety includes all those policies, procedures and practices designed to minimize the risk of exposure to potentially hazardous chemicals. This includes the risks of exposure to persons handling the chemicals, to the surrounding environment, and to the communities and ecosystems within that environment. Manufactured chemicals, either pure or in mixtures, solutions and emulsions, are ubiquitous in modern society, at industrial, occupational and private scale. However, there are chemicals that should not mix or get in contact with others, as they can produce byproducts that may be toxic, carcinogenic, explosive etc., or can be dangerous in themselves. To avoid disasters and mishaps, maintaining safety is paramount.