The Republic of Latvia Cabinet of Ministers of 29 June 1999, in Regulation No 228 (in Riga. Nr. 33, 3. §) chemical and chemical product classification, labeling and packaging the order Issued in accordance with the chemicals and chemical products Act article 10 the third paragraph, and article 12, third part i. General questions 1. these provisions set a single chemical and chemical product classification, labeling and packaging procedures.
2. These rules within their competence, controls the State environment inspectorate, State Labour Inspectorate and the national sanitary inspection.
II. Chemicals and chemical products, the classification and labelling procedures 3. Classified chemicals specified in annex 1 of these rules.
4. exposure to chemicals and chemical characteristics of the combination of exposure to these provisions provided in annex 2.
5. Explosive, extremely flammable, highly flammable and flammable substances and chemical products as well as chemicals and chemical products, which are powerful oxidizers, classification and labelling criteria laid down in annex 3 to these regulations.
6. Very toxic, toxic and harmful chemicals and chemicals classification and labelling criteria laid down in annex 4 of these rules.
7. Corrosive and irritant chemicals and chemicals classification and labelling criteria for the selection of these rules laid down in annex 5.
8. Sensitization of polluting chemicals and chemicals classification and labelling criteria laid down in annex 6 of these rules.
9. Carcinogenic, mutagenic and reproductive toxic chemicals and chemicals classification and labelling criteria laid down in annex 7 of these rules.
10. the environment of dangerous chemicals and chemicals classification and labelling criteria laid down in annex 8 of these rules.
11. other chemical and chemical product classification criteria laid down in annex 9 of these regulations.
12. Safety requirements for designation and designation combination of safety requirements are presented in annex 10 of this rule.
13. Safety requirements for designation and the selection criteria set out in annex 11 of these regulations.
14. The chemical or chemical product manufacturer, importer or supplier at the request of the person who has purchased relevant chemicals or chemical products for use in further manufacture of other products, shall immediately send the person concerned all the information about the chemical composition of the product for existing chemical substances that require new chemical classification and labelling of the product.
15. for each chemical and chemical product hazard class is assigned a label which indicates the hazard sign with letters (letters), hazard symbols and hazard an explanation (annex 12).
16. for each chemical and chemical product hazard class label the single representation (annex 13).
17. For each chemical or chemical product packaging must bear a label giving the following information in the national language: 17.1. chemicals or chemical products and chemical products in the chemical name;
17.2. in Latvia registered manufacturer, importer or supplier's name, business address and telephone number;
17.3. chemical characteristics and safety requirements of the label that warns of the effects of chemical hazards to man and the environment. These two signs are composed of letters, numbers, and text;
17.4. a mark;
17.5. retail for chemicals and chemical products, mass or volume.
18. If chemical classified as "very toxic", "toxic", "toxic" or "corrosive" to the packaging indicates the chemical name in the language of the country in accordance with the internationally recognised nomenclature (IUPAC-International theoretical and practical chemistry). In other cases the chemical packaging indicates the chemical the trade name of the substance or its chemical name according to an internationally recognised nomenclature (IUPAC).
19. On the chemical product packaging indicates the chemical the trade name of the product (chemical product name, which is used in trade) national language.
20. chemical products contained in the names of the chemical substances on the label, if any, due to the presence of chemicals in the chemical product that is classified in the following hazard classes or need to provide the following chemical characteristics: 20.1. If a chemical product according to annex 4 of these regulations. classified as "very toxic", "toxic" and "harmful";
20.2. If a chemical product according to annex 5 of these regulations. classified as "corrosive";
20.3. If chemical product according to these rules 4, 6 and 7 are assigned to annex the following chemical characteristics: R39, R40, R43 R42/43, R42, R45, R46, R47, R48 and.
21. If the chemical composition of the product is more than four chemicals, specifies four chemicals that can cause the most harm to health and the environment, selecting the appropriate chemical exposure characteristics.
22. If chemical products intended for retail sale and are classified as "highly toxic", "toxic" or "corrosive", but it is not possible to impose the package marking information (exposure to the chemical characteristics and safety requirements for designation), precise and comprehensible information added to the packaging and, if necessary, add the information about the destruction of the empty package.
23. If the manufacturer can prove that the information on which the components of the product in a chemical or chemicals in accordance with the freedom of information act has limited availability, he has the right not to reveal the specific chemicals, but specify the General functional groups (atoms or groups of atoms, which determines the chemical properties of the connection).
24. The chemical and chemical product packaging may not specify the chemical characteristics and safety requirements for designation if: 24.1. highly flammable, flammable and oxidizing chemical and chemical product package not exceeding 125 ml. irritating chemical products 24.2 package not exceeding 125 ml and they do not contain chemicals that may cause sensitisation by inhalation;
24.3. irritating chemicals package not exceeding 125 ml. 15.2. harmful chemicals package not exceeding 125 ml and they are not intended for retail sales.

25. If a chemical product is classified as "harmful", "irritant", and as a chemical product labeled with "harmful", but exposure to the chemical characteristics of both State the hazard classes.
26. for each chemical substance indicate the nature of exposure to the chemical, assigned to it under the rules of the annex 1. If the chemical is not mentioned in annex 1 of these provisions, the nature of exposure to the chemical in accordance with this provision, 3., 4., 5., 6., 7., 8., and annex 9.
27. in describing the possible damage caused by chemical or a chemical product can do to man and the environment, specify at least one, but not more than four chemical characteristics. Exposure to the chemical characteristics indicate the relevant chemicals and chemical characteristics of the product, which cause harmful effects.
28. The chemical and chemical product use safety measures, indicates at least one but no more than four terms of safety requirements (the joint designation of the safety requirements is considered one). If the designation of the safety requirements it is not possible to specify the label, you can add it separately.
29. for each chemical substance indicates the security labels assigned to it pursuant to the provisions of this annex. If the chemical is not mentioned in annex 1 of these regulations, safety requirements for designation chosen in accordance with the provisions of annex 11.
30. retail for chemical product packaging labelling requirements signs security adds safety labels or S1, S2, S45 S46 in accordance with the provisions of annex 11 criteria described in.
31. If chemical products intended for use by spraying it on the label of the packaging required security designation, as well as granting S23 one of the safety requirements for designation S38 or S51 in accordance with the provisions of annex 11.
32. The chemical hazard symbol represents and hazard signs with the letters assigned to each particular chemical substance in accordance with the provisions of annex 1. If the chemical is not mentioned in annex 1 of these regulations, the hazard symbol and the hazard label with the letter selected in accordance with this provision, 3., 4., 5., 6., 7., 8., and annex 9.
33. If the chemical is assigned more than one hazard sign with letters, take into consideration the following conditions: 33.1. If chemical is denoted by the letter "T", is not required to indicate the letters "Xi", the "Xn", and "C", if this provision 1. unless otherwise specified in the annex;
33.2. If chemical is denoted by the letter "C", is not required to indicate the letters "Xi";
33.3. If chemical is denoted by the letter "E", is not required to indicate the letters "F" and "O".
34. the information specified in these provisions on chemical substances and chemical product packaging placed horizontally on one or more surfaces of the packaging.
35. The label dimensions shall be determined taking into account the size of the packaging: 21.8. If packing capacity to 3 litres, the minimum size of the label is 52 x 74 mm; 21.9. If packing capacity of 3 litres up to 50 litres, the minimum sizes of the label are 74 x 105 mm; 35.3. If the packaging capacity of 51 litres up to 500 litres, the minimum size of the label is 105 x 148 mm; if the packaging capacity of 35.4. is greater than 500 litres label minimum size 148 x 210 mm. is 36. each hazard symbol shall cover not less than 1/10 of the surface of the label or not less than 1 cm2. The label stuck for packaging that contains the chemical and chemical products. The basic colour of the label should be such that the danger labels stand out.
37. If chemicals and chemical product packaging consists of an outer packaging which contains a number of internal packaging units are allowed to label the external packaging according to the hazardous chemicals and transportation of dangerous chemical products. The inner packaging must be marked according to these rules.
38. The chemical and chemical product labels may not be an indication that the chemical or chemical product does not pose any threat, for example, "not" dangerous "," not harmful "," label "is not necessary," check "," approved "," environment "," nature "or the said word combinations.
39. specific criteria for labelling chemical products referred to in this provision in annex 14.
III. Chemicals and chemical products, packing 40. Chemical and chemical product packaging must meet the following criteria: 24.9. it must be resistant to the manufacturer's intended use and storage conditions;
40.2. packaging material must not form a chemical connection with the packaged chemicals or chemical products or to submit to them;
40.3. the design and manufacture of packaging material must be such that, during storage, there is content loss;
40.4. If the package is to be closed again, after the closing may not occur in the content.
41. The packaging for multiple openings, must be such that the child can not be opened, if the package contains: 25.5. liquid chemicals or chemical products with a kinematic viscosity of less than 7 × 10-6 m2/sec at 40 ° C, containing 10% or more of the aliphatic and/or aromatic hydrocarbons;
41.2. chemical products containing 3% or more of methanol;
41.3. dichloromethane or chemical products containing 1% or more of dichloromethane.
42. the packaging of chemical products that can not be opened children evaluate according to the EN ISO standard 8317.
43. If chemicals or chemical products that are classified as "highly toxic", "toxic" or "corrosive", intended for sale to the retail packaging, irrespective of the volume must be such that the package would not open to children, and it must be tangible hazard warning symbol for a blind user.
44. If chemicals or chemical products that are classified as "harmful", "extremely flammable" and "inflammable", intended for sale in the retail trade, their packaging irrespective of the volume must be tangible hazard warning symbols.
45. the Tangible hazard warning symbol, you need to place on the package in accordance with these rules, is the raised equilateral triangle whose sides are 9 mm in length. If there is not enough space on the package hazard warning symbol, on the equilateral triangle may be deployed on the edge of which length is 3 mm, but if this is not possible, you must also deploy a three-point symbol.

46. the hazard warning Tactile symbol is placed directly on the chemicals or chemical product packaging so that it can locate the wrapper is opened, and to remain throughout the period of use.
47. To spray a hermetically sealed cylinder and the felt packing tangible hazard warning symbol shall be placed as follows: 29.3. sprays symbol must be placed on a sprinkler head, which at the time of use should not be removed;
47.2. the sealed cylinders-the opening parts. The hazard warning tactile symbol must be as near as possible to the opening;
47.3.-on a backing of felt cover.
48. the chemicals and chemical products stored in packages with labels, the hazard symbol, as well as exposure to the chemical characteristics and safety requirements for designation.
49. the Packaging and storage of chemicals and chemical products in the warehouse, to be met by their chemical compatibility principle: 30.5. oxidising and chemical products containing oxidising, placed separately from the chemical products that contain flammable chemicals;
30.6. the acid and base placed separately;
30.6. chemicals that can be formed in the reaction of toxic compounds, must not be stored together;
49. other principles of interoperability, storage of a wide variety of chemicals and chemical products.
50. Packaged chemicals and chemical products banned from the store with food, fodder, etc in the warehouse must be exhaust ventilation, water outlet or hand washing device.
51. Very toxic and toxic chemicals packaged in individual cabinets or stored in the premises and shall indicate the relevant warning signs.
52. the chemicals and chemical products, according to their size placed on pallets or shelves. Between the pallets and rows of shelves must be at least one metre wide aisles (retail in chemicals and chemical products stored at least 1.5 m height, excluding packaging, you can not open the children).
53. The chemical and chemical product packaging may not attract the attention of children and mislead the consumer.
54. The chemical and chemical product packaging may not be used in packaging, used in food, animal feed, cosmetics, medicinal products or packaging.
IV. Closing questions 55. paragraph 42 of these rules shall enter into force by February 1, 2001.
56. This provision 7.2 of annex 3 and annex 14 paragraph 12 shall enter into force on 1 July 2000.
 
V. Krištopans, Prime Minister of environmental protection and regional development Minister v. pigeon annex 2 of the Cabinet of Ministers of 29 June 1999, regulations no 228 of exposure to chemicals and chemical characteristics of the combination of exposure to chemical agents 1. characterisation of R1 explosive when dry R2 risk of Explosion by shock, friction, fire or other incendiary exposure in high risk of explosion R3 shock, friction, fire or other sources of ignition of the R4 form the explosive compounds with metals R5 heating may cause an explosion in the air Explosive or R6 airless environment R7 may cause fire R8 contact with combustible material may cause fire R9 Explosive by mixing the combustible material flammable R10 R11 highly flammable R12 extremely flammable R14 actively react with water R15 contact with water liberates extremely flammable gases R16 Explosive when faced with oxidants R17 spontaneously flammable in air R18 in use, may form flammable/explosive vapour-air mixture R19 may form explosive peroxides R20 R21 harmful harmful by inhalation contact with skin Harmful if swallowed R22 R23 toxic by inhalation R24 toxic in contact with skin R25 toxic if swallowed R26 very toxic by inhalation R27 very toxic in contact with skin R28 very toxic if swallowed R29 contact with water liberates toxic gas R30 can become highly flammable in use R31 contact with acids liberates toxic gas R32 contact with acids liberates very toxic gas R33 cumulative impact of Harmful threats R34 causes Burns R35 causes severe burns R36 irritating to eyes R37 irritating respiratory system R38 irritating to skin R39 danger of very serious irreversible effects R40 possible risk of irreversible effects R41 risk of serious damage to eyes inhalation R42 may cause sensitisation with skin contact for R43 may cause increased sensitivity to the R44 risk of explosion if heated under confinement R45 carcinogen R46 may cause heritable genetic defects R47 reproductive toxic substance R48 danger of serious damage to health by prolonged exposure through inhalation R49 may cause malignant tumours of the R50 very toxic to aquatic organisms R51 toxic to aquatic organisms R52 harmful to aquatic organisms R53 may cause long-term adverse effects in the aquatic environment R54 toxic to flora R55 toxic to fauna R56 toxic to soil organisms R57 toxic to bees R58 may cause long-term adverse effects in the environment R59 Dangerous for the ozone layer R60 May impair reproductive ability R61 may cause harm to the fetus's development R62 possible risk of harm to the reproductive capacity of the R63 possible risk of harm to the R64 may cause harm to breastfed baby R65 harmful: : if swallowed can cause lung damage 2. Chemical characterization of the exposure combinations R14/15 reacts with water assets, liberate extremely flammable gases R15/29 contact with water liberates extremely flammable toxic gases R20/21 Harmful by inhalation and in contact with skin R20/22 Harmful by inhalation and if swallowed. R20/21/22 Harmful by inhalation, in contact with skin and if swallowed R21/22 Harmful in contact with skin and if swallowed R23/24 toxic by inhalation and in contact with skin/25 R23 toxic by inhalation and if swallowed R23/24/25 toxic by inhalation, in contact with skin and if swallowed. R24/25 toxic in contact with skin and if swallowed R26/27 very toxic by inhalation and in contact with skin R26/28 very toxic by inhalation and if swallowed R26/27/28 very toxic by inhalation, in contact with skin and if swallowed. R27/28 very toxic contact with skin and if swallowed R36/37 irritating to eyes and respiratory system R36/38 irritating to eyes and skin R36/37/38 irritating to eyes, skin and respiratory system R37/38-irritating to the respiratory system and skin R39/23 toxic: danger of very serious irreversible effects through inhalation R39/24 toxic: danger of very serious irreversible effects in contact with skin R39/25

Toxic: danger of very serious irreversible effects if swallowed R39/23/24 toxic: danger of very serious irreversible effects through inhalation and in contact with skin R39/23/25 toxic: danger of very serious irreversible effects through inhalation and if swallowed R39/24/25 toxic: danger of very serious irreversible effects in contact with skin and if swallowed R39/23/24/25 toxic: danger of very serious irreversible effects through inhalation, in contact with skin and if swallowed R39/26 very toxic : danger of very serious irreversible effects through inhalation R39/27 very toxic: danger of very serious irreversible effects in contact with skin R39/28 very toxic: danger of very serious irreversible effects if swallowed R39/26/27 very toxic: danger of very serious irreversible effects through inhalation and in contact with skin R39/26/28 very toxic: danger of very serious irreversible effects through inhalation and if swallowed R39/27/28 very toxic: danger of very serious irreversible effects contact with skin and if swallowed R39/26/27/28 very toxic: danger of very serious irreversible effects through inhalation, in contact with skin and if swallowed R40/20 Harmful: possible risk of irreversible effects through inhalation, R40/21: a Dangerous potential threat of irreversible effects in contact with skin/22: possible Dangerous R40 irreversible effects if swallowed danger R40/20/21 Harmful: possible risk of irreversible effects through inhalation and in contact with skin R40/20/22 hazardous : possible risk of irreversible effects through inhalation and if swallowed. R40/21/22 Harmful: possible risk of irreversible effects in contact with skin and if swallowed R40/20/21/22 Harmful: possible risk of irreversible effects through inhalation, in contact with skin and if swallowed R42/43 in contact with the skin or when inhaled, can cause increased sensitivity 20 dangerous: R48/danger of serious damage to health by prolonged exposure through inhalation R48/21 hazardous : danger of serious damage to health by prolonged exposure in contact with skin R48/22 Harmful: danger of serious damage to health by prolonged exposure if swallowed R48/20/21 Harmful: danger of serious damage to health by prolonged exposure through inhalation and in contact with skin, R48/20/22 Harmful: danger of serious damage to health by prolonged exposure through inhalation and if swallowed R48/21/22 Harmful: danger of serious damage to health by prolonged exposure in contact with skin and if swallowed. R48/20/21/22 hazardous : danger of serious damage to health by prolonged exposure through inhalation and if swallowed, by contact with skin toxic R48/23: danger of serious damage to health by prolonged exposure through inhalation R48/24 toxic: danger of serious damage to health by prolonged exposure in contact with skin R48/25 toxic: danger of serious damage to health by prolonged exposure if swallowed R48/23/24: Toxic: danger of serious damage to health by prolonged exposure through inhalation and in contact with skin R48/23/25 toxic : danger of serious damage to health by prolonged exposure through inhalation and if swallowed R48/24/25 toxic: danger of serious damage to health by prolonged exposure in contact with skin and if swallowed. R48/23/24/25 toxic: danger of serious damage to health by prolonged exposure through inhalation and if swallowed,, in contact with skin R50/53 very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment R51/53 toxic to aquatic organisms may cause long-term adverse effects in the aquatic environment R52/53 Harmful to aquatic organisms, may cause long-term adverse effects in the aquatic environment, environmental protection and regional development Minister v. pigeon annex 3 of the Cabinet of Ministers of 29 June 1999, regulations no 228 Explosive, extremely flammable, highly flammable and flammable substances and chemical products as well as chemicals and chemical products that are strong oxidizers , the classification and labelling criteria 1. Explosive chemicals and chemical products shall be labelled and specify at least one of the following characteristics: exposure 1.1. R2-risk of explosion by shock, friction, fire or other sources of ignition. These criteria are known as the chosen, if the chemicals and chemical products are potentially explosive and need not be marked with the R3;
1.2. R3-high risk of explosion by shock, friction, fire or other sources of ignition. These criteria are known as the chosen, if the chemicals and chemical products are especially sprādziennedroš such as pikrīnskāb or dibenzoilperoksīd salts.
2. chemicals and chemical products that are powerful oxidizers, marked and specify at least one of the following characteristics: exposure 2.1.-R7 may cause fire. These criteria are known as the chosen, if organic peroxides can flare up, even if they are not in contact with combustible materials;
2.2. R8-contact with combustible material may cause fire. These criteria are known as the chosen, if there are other oxidizing substances and products, including inorganic peroxides, which may flare up or raise another flash point of the substances or products the risk of contact with combustible materials;
2.3. R9-explosive by mixing with combustible material. These criteria are known as the chosen, if there are chemicals or chemical products, including inorganic peroxides, such as chlorates, which become explosive when mixed with combustible materials: 2.3.1. chemicals that are organic peroxides, are to be classified as strong oxidants, on the basis of their structure (e.g. R-O-O-H, R1-O-O-R2);
2.3.2. chemical products containing organic peroxides classified as strong oxidants, based on the calculation that determines the active oxygen content: 16 x (ni x ci/Mi) where ni-number of organic peroxides peroxide i molecules;
CI-concentration organic peroxide products i (weight percentage);
MI-organic peroxide i molar mass;
2.3.3. any organic peroxide classified for the strong oxidants: 2.3.3.1. If an organic peroxide or chemical composition of the product which it included, contain more than 5% of organic peroxides;
2.3.3.2.0.5% of the chemical composition of oxygen is located in peroksigrup (-O-O-) form and not more than 5% of the chemical composition of oxygen lies in hydrogen peroxide.
3. Extremely flammable chemicals and chemical products shall be labelled and indicates exposure to the chemical characteristics of R12-extremely flammable. The characteristics chosen if:

3.1. liquid chemicals or chemical products that Flash temperature is below 0 ° C and a boiling point (if the nature of the boiling temperature interval,-the temperature at which it starts boiling) is equal to 35 ° C or lower;
3.2. gaseous chemicals and chemical products, which in normal temperature and pressure are flammable in contact with air.
4. Flammable chemicals and chemical products shall be labelled and specify at least one of the following chemical characteristics: 4.1 R11-highly flammable. The characteristics chosen if: 4.1.1 solid chemicals and chemical products, which can flare up after brief contact with a source of ignition and may continue to burn after removal;
4.1.2. liquid chemicals and chemical products, which the Flash temperature is below 21 ° C but not classified as extremely flammable;
4.2.-R15 contact with water liberates extremely flammable gases. These criteria are known as the chosen, if there are chemicals and chemical products, which, in contact with water or water vapour, evolve extremely flammable gas at a rate of more than one litre per kilogram of substance per hour;
4.3. R17 spontaneously flammable in air-. Characteristics of these criteria when selecting chemicals or chemical products that normal temperatures, coming into contact with air, can heat up and flare up without additional power supply.
5. Combustible chemicals and chemical products indicate the characteristics of the exposure-R10-flammable: 5.1 the characteristics selected if liquid chemical and chemical products, the outbreak is equal to the temperature of 21 ° C or higher than or equal to 55 ° C or less;
5.2. However, in practice it has proved that the outbreak is equal to the temperature of 21 ° C or higher than or equal to 55 ° C or less, are not to be classified as flammable, if one chemical product does not maintain a burning and there is no reason to fear that the person may be compromised, which deals with this product, or other persons.
6. Chemicals and chemical products that are classified under this annex 1., 2., 3., 4., 5., 7., and the provisions of points 4, 5, 6, 7 and 8 of the annex, grant additional exposure characteristics: 6.1.-R1 explosive when dry. These criteria are known as the chosen, if the chemicals and chemical products are potentially explosive in dry form and delivered to the market in the form of the solution or the wetted form, such as nitrocellulose, in which the nitrogen content exceeding 12.6%;
6.2. R4-creates explosive compounds with metals. These criteria are known as the chosen, if the chemicals and chemical products may form explosive compounds in metal, such as picric acid;
6.3. R5-heating can cause an explosion. These criteria are known as the chosen, if there are thermal unstable chemicals and chemical products that are not classified as explosive, e.g. perchloric acid (> 50%);
6.4. R6-explosive air and airless environment. These criteria are known as the chosen, if the chemicals and chemical products is not stable at normal temperature, such as acetylene;
6.5.-R7 may cause fire. These criteria are known as the chosen, if the chemicals and chemical products are reactive, such as fluorine, Sodium Hydrosulphite;
6.6. R14-actively reacts with water. The criteria for such characteristics is that there are chemicals and chemical products that actively react with water, e.g. acetilhlorīd, alkali metals, Titanium tetrachloride;
6.7.-R16 explosive when faced with oxidants. These criteria are known as the chosen, if the chemicals and chemical products, the face of oxidants, can react with the explosion, such as the red phosphorus;
6.8-R18 in use, may form flammable/explosive vapour-air mixture. These criteria are known as the chosen, if the chemicals and chemical products were not classified as flammable, but contain volatile components which are flammable mixture with air;
6.9.-R19 may form explosive peroxides. These criteria are known as the chosen, if the chemicals and chemical products during storage may form explosive peroxides, such as diethyl ether, 1.4-dioxane;
6.10.-R30 can become highly flammable in use. These criteria are known as the chosen, if chemical products are not themselves classified as flammable, but they can become flammable, losing the volatile components of fire;
6.11.-R44 risk of explosion if heated under confinement. These criteria are known as the chosen, if the chemicals and chemical products not classified as explosive in accordance with paragraph 1 of this annex, but can explode if it is cooked in a closed environment;
6.12. chemicals or chemical products may be assigned additional exposure characterisation pursuant to this provision, criteria of Annex 9.
7. the gaseous products (gases) shall be classified in accordance with this annex 1., 2., 3., 4., 5 and 6:7.1 if the gaseous products are made to order in small amounts, the flammability of the mixture are assessed by the formula, in which the composition of the gaseous mixture A1F1 + ...: + AiF + ... AnFn + B1I1 + ... + BiI + ... BpIp where Ai and Bi-gas moldaļ;
Fi-flammable gas;
II-inert gas;
n-number of combustible gases;
p-inert gas;
7.1.1. flammable gases concerned the total content is determined by the formula: (A) ' i = Aix x (100/(Ai + kibi)), where A ' i-flammable gases concerned the total content;
Ki-coefficient of equivalence inertaj of nitrogen gases;
7.1.2. using flammable gas content of maximum values, mixed with nitrogen creates a composition which is not flammable in air (TCI), can be expressed as: (A) ' i/Tci Ltd. £ 1;
7.1.3. the gas mixture is flammable if the expression value is greater than 1 and the product shall be classified as highly flammable, and is characterized by the exposure characteristics of R12;
7.1.4. the nitrogen coefficient (Ki) of equivalence values and flammable gas, the maximum quantity which mixes with nitrogen in the air not flammable (Tc) determined by the 9 and 10 of this annex, paragraph specified tables;
7.1.5. If Tc value is specified, instead of the lower flammability limit. If it is not set, the Tc value is one volume;
7.2. the gas mixture shall be classified as oxidizing and characterized with the R8, if any of the gas is as strong or stronger oxidant than air, determined according to the formula: Si xiC 21, which

XI-gas concentration in% vol;
CI-oxygen gas equivalent in question;
7.2.1. The Ci value shall be determined in accordance with EN ISO standard 10156:7.2.1.1 5.2 oxygen O2 Ci = 1;
7.2.1.2. nitrous oxide N2O for Ci = 0.6;
7.2.2. If the value of Ci is specified, it takes about 40.8. If none of the chemical composition of the product under the substances are not classified by criteria laid down in this annex and from the chemical manufacturer or importer of the product, the information available does not seem that the chemical product poses a threat referred to in this annex, there is no need to conduct studies to determine whether a chemical product must be classified in accordance with the criteria in this annex.
9. Ki equivalence factor of inert gases versus nitrogen gas N2 1 CO2 0.5 1.5 Ha Ki With 0.5 0.5 0.5 0.5 Not Kr Xe 1.5 1.5 1.5 C3F8 SO2 SF6 CF4 1.5 10. the maximum content of flammable gas TCI, which blends with nitrogen in the air not flammable gas) Tci1% hydrogen 5.7 20 carbon monoxide methane ethane ethylene 14.3 7.6 6 butane propane 6 to 6.5 5.7 Propēn Butēn in butadiene 4.5 5.5 6 Isobutane acetylene 4 2.2-dimetilpropān (opentān not in , tetrametilmetān) 4 n-pentane and izopentān 4 3.5 n-hexane n-heptane n-octane 1.8 2 ISO (2, 2, 4-trimethylpentane) n-nonane 1.8 1.5 n-n-dodecane Dean 1.1 1 cyclopropane cyclohexane 6.8 2.5 benzene toluene methanol 4.2 2.1 11 ethanol acetone 5.8 4.5-3.4 dimethyl ether diethyl ether dimetilbutān Metilamīn of 2.4 to 3.7 2.2 6.8 Etilformiāt Metilformiāt 7 Methyl acetate ethyl acetate 3.9 4.3 a 4.3 methyl ethyl ketone 2 hydrogen sulfide (hydrogen sulphide) 5.2 carbon disulphide (carbon disulphide) 3.7 1.1-1.5 Fluormetān of difluoretilēn of Vinilbromīd of 6.8 (R1132) 1-chloro-1-6.8 1-difluoretān (R142b) 5.5-Vinilfluorīd of the difluoretān of the R143 3.2 4.6 5.6 1.1 1 4.3 Propadiēn Hloretān to R152 for a Ciklobutān a Vinilmetilēter 2 1 2.1 2.7-metilbu-3-shadow of the Fluoretān is 1.8 4.3 4.5 Cianogēn 7 vinyl chloride arsine 5.6 Diborān 1 hydrogen cyanide (hydrogen cyanide) 6.7 Karbonilsulfīd Nickel Carbonyl is 14 1.1 1.2 Monoetilamīn of phosphine Dimetilamīn in Trimetilamīn is 3.5 2.5 4.8 methylene chloride methyl mercaptan is 4.7 R1113 10 Tetrafluoretilēn 10 a 16 a 2.5 13.7 bromomethane Etilmetilēter Trifluoretilēn of Selēnūdeņrad 2.2 tetraethyl lead 13.1 1 1 Metilsilān of 1.4 Monohlorsilān 1 Dihlorsilān manufacturing Silanes for 4.5 Germān 1 ethylene oxide
Propilēnoksīd in Etilacetilēn is 1.8 3.1 2.0 Metilacetilēn 1.4 to 1) If a TCI value could not be found, were wary of the computed values.
 
Environmental protection and regional development Minister v. pigeon annex 4 of the Cabinet of Ministers of 29 June 1999, Regulation No 228 of very toxic, toxic and harmful chemicals and chemicals classification and labelling criteria 1. Very toxic chemicals and chemical products shall be labelled and specifies the following chemical characteristics: 1.1 the R28-very toxic if swallowed. The following represents the chemicals or chemical products: 1.1.1. acute toxicity is the LD50 £ 25 mg/kg (rat, oral ingestions);
1.1.2. in accordance with the fixed-dose procedure in rats, oral doses of receiving 5 mg/kg, less than 100% of the test organisms surviving;
1.2.-R27 very toxic in contact with skin. The following represents the chemicals or chemical products that acute toxicity is the LD50 £ 50 mg/kg (rat or rabbit, exposure through the skin);
1.3. the R26-very toxic by inhalation. The following represents the chemicals or chemical products, of which: 1.3.1. acute toxicity is 0.5 mg/l LC50 £ four hours (inhalation, rat, for gases or vapours);
1.3.2. acute toxicity is 0.25 mg/l LC50 £ four hours (inhalation, rat, for aerosols or particulates);
1.4.-R39 danger of very serious irreversible effects. The following represents the chemicals or chemical products for which reasonable evidence exists that can appear irreversible consequences of exposure to the substance by the interval of concentrations as specified in the previous paragraph;
1.5. to indicate possible paths through which exposure can occur, use one of the following characteristics: exposure R39/26, R39/27, R39/28, R39/26/27, R39/26/28, R39/27/28, R39/26/27/26, 2. Toxic chemicals and chemical products shall be labelled and specifies the following characteristics of the exposure: R25-toxic if swallowed 2.1. The following represents the chemicals or chemical products: 2.1.1. acute toxicity is 25 mg/kg LD50 £ 200 < mg/kg (rat, oral ingestions);
2.1.2. discriminatory dose rats, oral doses of receiving 5 mg/kg, is 100% of the test organisms survived, but evident toxicity;
2.2.-R24 toxic in contact with skin. The following represents the chemicals or chemical products that acute toxicity of 50 mg/kg LD50 400 mg/kg lbs < (rat or rabbit, exposure through the skin);
2.3. R23-toxic by inhalation. The following represents the chemicals or chemical products: 2.3.1. acute toxicity is 0.25 mg/l LC50 £ 1 < four hours (inhalation, rat, for aerosols or particulates);
2.3.2. acute toxicity (inhalation, rat, for aerosols or particulates) is 0.5 mg/l LC50 £ 2 < four hours;
2.4.-R39 danger of very serious irreversible effects. The following represents the chemicals or chemical products, if reasonable evidence exists that can appear irreversible consequences of exposure to the substance by determining the concentration of in the interval, as specified in the previous paragraph;
2.5. to indicate possible paths through which exposure can occur, use one of the following characteristics: exposure R39/23, R39/24, R39/25, R39/23/24, R39/23/25, R39/24/25, R39/23/24/25;
2.6.-R48 danger of serious damage to health by prolonged exposure in contact. The following represents the chemicals or chemical products which may cause serious injury (expressed in functional abnormalities or morphological changes which are toxicologically, origin) after repeated or prolonged exposure to certain substances exposure;
2.7. using the exposure characteristics of R48, chemicals and chemical products are to be classified as toxic when these effects are observed at levels that are about round (i.e. ten times) lower than those indicated in the characteristics of exposure to a substance, R48 in point 2.6 of this annex;
2.8. to indicate possible paths through which exposure can occur, use one of the following characteristics of the exposure: R48/23, R48/24, R48/25, R48/23/24, R48/23/25, R48/24/25, R48/23/24/25.

3. Harmful Chemicals and chemical products shall be labelled and indicates one of the following characteristics of the exposure: R22-harmful 3.1 if swallowed. The following represents the chemicals or chemical products: 3.1.1. acute toxicity to rats, oral ingestions, is £ 200 mg/kg LD50 2000 mg/kg