The Republic of Latvia Cabinet of Ministers of 25 august 1998 the Regulation No. 317 (in Riga. Nr. 46, 7. §)) the rules on the safety and health of workers at work with asbestos released in accordance with the law "on labour protection" article 16 i. General questions 1. terms used in the rules: 1. asbestos-fibrous silicate minerals or in materials containing asbestos fibres (asbestos actinolite, grunerīt (amosite), anthophyllite, krizotil, crocidolite, tremolite);
1.2. working with asbestos-asbestos production, processing, packaging, storage, transport, use, removal, disposal or other activities associated with asbestos;
1.3. the dismantling of the parts containing asbestos-elimination and disposal of the building, installation or equipment;
1.4. fiber-asbestos fibres, which width does not exceed three micrometers, a length of more than five micrometres and a length-to-width ratio greater than 3:1;
1.5. the concentration of fibre-fibre of asbestos in such quantities of air per unit volume (fibre/cm3);
1.6. Average fibre concentrations-the average concentration of asbestos fibres, which are subject to the employee eight hours (working days);
1.1. cumulative effect gave-the average amount of fiber concentration within three months.
2. these provisions govern employee safety and health requirements for work with asbestos, where employees are or may be exposed to asbestos, as well as the permissible concentration of fibre and fibre concentration detection method.
3. These provisions shall not apply to persons who carry out work with asbestos in maritime and air transport.
4. The employer shall ensure that the specific impact on employees to asbestos health and taken to the concentration of fibres in the air of the working environment measurement.
5. it is prohibited to use Asbestos jobs with spraying method.
6. Sound or heat insulation the use of asbestos fibre containing materials where density is lower than 1 g/cm3.
7. the employer 10 working days before the start of the work with asbestos shall submit the national labour inspectorate in the application work with asbestos (hereinafter application), which contains the following: 7.1. employer's properties (name, registration number and registered office);
7.2. the work with asbestos in place;
7.3. the type and quantities of asbestos during the year;
7.4. the applied technological processes and working methods;
7.5. the products to be produced and the amount;
7.6. working with asbestos employees;
7.7. the labour protection requirements, security measures.
8. If the application changes occur in the information, the employer shall notify the week of the national labour inspectorate.
II. Organization of work with asbestos 9. To minimize the impact of asbestos workers, the employer shall ensure the conduct of preventive measures, including: 9.1. minimize the use of asbestos;
9.2. minimize the number of employees who are or may be exposed to the effects of asbestos;
9.3. the work plan process to avoid emissions of asbestos fibres in the air in the working environment. If it is not possible to avoid the emissions of asbestos fibres, collected as close as possible to the dump site and be equipped with the jobs of local suction ventilation;
9.4. being regularly and effectively cleaned and serviced buildings, business premises and equipment, not to exceed the provisions mentioned in paragraph 21, the maximum concentration of fibres in the air of the working environment;
9.5. provide employees with personal protective equipment, in accordance with the manufacturer's declaration to correspond to the specific environmental conditions of work.
10. the place where the work is carried out with asbestos, delimit and marked down security legislation marks. The workplace banned: 10.1 be outsiders and employees whose job duties not related to working with asbestos;
10.2. to smoke.
11. storage and transport of Asbestos in a closed and sealed in packaging is an indication that the package contains asbestos.
12. Not to exceed the provisions mentioned in paragraph 21, the maximum concentration of fibres in the air of the work environment, the work of asbestos waste at the end of the work place, and collect relevant closed sealed in packaging waste that contains asbestos.
13. Asbestos waste transportation and disposal regulations.
14. in case it is found that the average fibre concentrations exceed this provision in paragraph 21 stated maximum fibre concentrations, the employer shall apply all the following measures: 14.1. stop working with asbestos until the work concerned is to ensure adequate air purity;
14.2. immediately notify the employee and the employee or their professional trustee (hereinafter referred to as the trustee of an employee) of the maximum permissible concentration of fibre and briefed on further action;
14.3. find out the maximum permissible concentrations of fibres over causes and take measures of work environment improvement of air quality;
14.4. ensure fibre concentration measurement in the air of the working environment, to verify this rule 14.3. of the measures referred to in point.
15. If working with asbestos, it is expected that the individual working stages a maximum permissible concentration of fibres will be exceeded, but the technical and organisational measures to reduce the concentration of fibres will not be effective, the employer shall provide employees with appropriate respiratory protection equipment and other necessary personal protective equipment and provides the statutory maximum of safety marks on a fibre concentrations will exceed ujam placement.
16. It is not permissible for the employment of the employee's permanent working places, which is not possible with preventive measures to reduce the concentration of fibres to paragraph 21 of these rules the maximum levels set out in the fibre concentration and employee health is possible only with personal protective equipment.
III. determination of the concentration of fibres 17. measurements of the concentration of fibres in accordance with chapter IV of these regulations, or under any other method giving equivalent results, do the cabinet authorized the competent testing laboratories.
18. The fibre concentration measurements taken: 18.1. after every three months;
18.2. If significant changes are made to the technological process or equipment;
18.3. If we have reason to doubt the adequacy of the measurements of the real situation.

19. If the technological process or equipment, no major changes and two subsequent fibre concentration measurements do not exceed half of the maximum permissible concentration of fibres, the frequency of measurements may be reduced to once a year.
20. If a group of employees employed in the same or similar work with asbestos in the same work environment and is subject to the same risk factors, can only take one of the measurement of the concentration of fibre and its results apply to all employees of the group.
21. Average fibre concentrations in the air of the working environment shall not exceed the following maximum permissible concentrations of fibres: 21.1. krizotil-0.60 wasting valuable race/cm3;
21.2. for all other forms of asbestos (except krizotil) or in mixtures, including mixtures containing krizotil-0.30 fibres per cm3.
IV. the concentration of fibres in the air of the working environment detection method of fiber 22 Sample concentration measurement (hereinafter sample) due to the breathing zone of workers, not more than 200 mm from the head of the employee.
23. the sample uses the following technical equipment: 23.1. printed textured membrane filter (cellulose esters esters of cellulose or cellulose nitrate filter) pore size 0,8-1,2 μm and a diameter of 25 mm; 23.2. open filter holder fitted with 33-44 mm long cylindrical shell, which is the internal diameter of at least 20 mm; 23.3. a portable pump with autonomous power supply carried by, the employee attached to the belt or placed in a pocket. The air flow must be smooth, and the initial speed must be 1.0 litre per minute ± 5 per cent. The sampling time, the air flow rate is maintained within ± 10% of the original speed of the air flow.
24. having long enough to be able to determine the average fibre concentrations, and provides a sampling of time measurement accuracy of ± 2 per cent.
25. The optimal fibre density on the filter is 100-400 fibres/mm2.
26. the filter or the filter part on the subject with the microscope, the filter is treated with acetone-triacetin method, and cover with a coverslip.
27. Fibre counting using a binocular microscope, which has the following equipment: 27.1. Koehler illumination;
27.2. zemgaldiņ equipment that contains or phase times of Abba-contrast condenser, located in the State, focusing and centering. Phase-contrast doughnut alignment must be independent of the condenser centering mechanism;
27.3.40 times bar-focal positive phase-contrast times the lens with the gap 0,65-0,70 and phase ring absorption within the range 65 to 85 percent;
27.4.12.5 times compensating eyepieces, and at least one of the eyepieces should be able to insert the focusing type networks;
27.5. Valton-Beckett circular eyepiece graticule of the diameter is 100 ± 2 micrometres and are checked by using the micrometers of the objective and the eyepiece.
28. The microscope shall be set in accordance with the manufacturer's instructions, and resolution of testing using phase-contrast control.
29. The resolution must be to 5. code to the AI controls or to block 5 on the HSE/NPL mark 2 control. Resolution of the microscope test each time before starting work.
30. the number of fibres, the following conditions must be fulfilled: 30.1. counting the visible part of the filter randomly chooses the gridded area;
30.2. the number of fibres that do not touch the particles with maximum diameter greater than three micrometers;
30.3. the fiber that both ends are in the network area, considered one of the fibres. If only one end of the fibre is gridded area concerned, it constitutes a pusšķiedr;
18.9. the fibre beam, who in one or more of the points it looks as a whole and indivisible, but the other points is divided into individual fibres (split fibre), considered one of the fibres. It measures the diameter of the beam retained;
5. fiber bundle in which individual fibres touch or cross one another, each fibre, if they can distinguish and identify enough. If it is not possible to release any individual fibers that meet the above conditions, the fibre beam considered as one fibre;
19.0. If more than 1/8 part gridded area is covered with fibre bundles or particles that do not match the characteristics of the fibre, this networking area shall not be taken into account and the count is made in a different place;
19.1. count 100 fibres, thereby ensuring that a minimum of 20 graticule area is checked, or 100 graticule areas examined.
31. the average number of fibres in the networking area is calculated by dividing the number of fibres counted by the tested the graticule area.
32. the error resulting from defects or filter pollution, must be not greater than three fibres to 100 network areas. The error by using the clean filters.
33. the concentration of Fibres in the air is determined by the following form: n x F C ul =-----, which s x V C-fibre concentrations (fibres/cm3);
n-the number of the average fibre network area;
F-filter area (cm2) open;
s-gridded area area (cm2);
V-mean displacement air (cm3).
V. specific requirements when performing disassembly 34. Employer before building, installation or installations for the demolition or repair the startup provides asbestos-containing parts of the dismantling.
35. to start dismantling the parts containing asbestos, the employer 10 working days before the start of dismantling the State Labour Inspectorate of the submitted application and dismantling work plan. Dismantling the working plan shall be the following: 21.8. Description and work duration;
35.2. place of work;
35.3. the dismantling of the work methods used;
35.4. the health protection measures and personal protective equipment;
22.1. the environment and nearby human description of measures.
36. Application and dismantling work plan need not be given if it is expected that through the disassembly will not exceed the provisions mentioned in paragraph 52 of the fibre concentrations and doses of a cumulative effect.
Vi. Personal protective equipment and hygiene requirements 37. Employer will provide employees with the appropriate protective clothing and other necessary personal protective equipment.
38. Protective clothing stored separately from the employee's personal clothing, washing for this purpose adequate equipment separately from other clothes and transported in densely closed containers. Protective clothing not to be taken outside of the territory outside the establishment.

39. Personal protective equipment stored in a specific location. After each use of personal protective equipment times checked and cleaned and, if necessary, replace the elements.
40. the employer work equipment according to household and lounges where you can without risk of the effects of asbestos up to relax, eat and wash up before meal, as well as a wash in the shower, work finally.
VII. cooperation with employers employees 41. The employer shall ensure that a safety briefing to employees whose work involves asbestos, to include the following additional issues: 25.5. asbestos posed potential risks to health;
41.2. air pollution control, maximum permissible concentrations of fibres and the cumulative dose of exposure;
41.3. Special hygiene requirements (including the requirement to refrain from smoking, doing work with asbestos);
25.7. protective clothing and personal protective equipment correctly;
41. specific preventive measures designed to reduce the effects of asbestos.
42. the employer shall provide employees or employees of trust to the person the opportunity to acquaint themselves with these rules 7 and paragraph 35 referred papers and fibre concentration measurement results, as well as provide the necessary explanations.
43. the employer consult with employees or fiduciaries of employees in such matters: 43.1. the safety and health protection measures (before specific work with the organisation and carrying out asbestos);
43.2. the fibre concentration measurements.
VIII. Employee health checks and records 44. employers law duly provides employees compulsory health checks.
45. the employer shall carry out work with asbestos records, employed for each employee showing: 45.1. the employee's description of the work to be carried out;
45.2. the duration of the work;
45.3. the impact on workers of the asbestos health: 45.3.1. Average fibre concentrations in the air in the working environment;
45.3.2. ku mulatīv exposure dose.
46. The provisions referred to in paragraph 45 of the accounting data is available: 46.1. treatment;
46.2. the employee (only for news about yourself).
47. The employees or employee by a trustee tracking data is available to anonymous and in aggregate form.
48. The rules referred to in paragraph 44 of the health examination results and the provisions referred to in paragraph 45 of the records stored by the employer after 45 years over asbestos effects on the health of workers, and the law shall be made available in the archives.
IX. Rules enforcement and compliance monitoring and responsibility for non-compliance with the provisions of 49. Expenses related to employee safety and health measures, the Organization shall be borne by the employer.
50. the ð o compliance supervised and controlled by the State Labour Inspectorate.
51. the employer, the officers and staff who have violated these rules, is responsible for the legislation.
X. closing questions 52. Ð o rule 7., 10., 37, 38, 39, 40, 44, 45, 46, 47 and 48 and paragraph 18.1. the provisions referred to in subparagraph shall not apply if the following conditions are met: the average fibre concentrations 52.1. below: 52.1.1. krizotil-0.20 fibres per cm3;
52.1.2. all other forms of asbestos (except krizotil) or in mixtures, including mixtures containing krizotil-0.10 fibres per cm3;
52.2. the cumulative effect of the dose is less than: 52.2.1. krizotil-12.00 fibre/cm3;
52.2.2. all other az besta (except krizotil) or in mixtures, including mixtures containing krizotil,-6.00 fibre/cm3.
53. the rules shall enter into force by 1 January 2000.
54. Until 1 January 2001:54.1. the concentration of fibres in the measurements shall be carried out after every six months;
the average fibre concentrations 54.2. working environmental air must not exceed the following maximum permissible concentrations of fibres: 54.2.1. krizotil-1.00 fibres per cm3;
54.2.2. all other forms of asbestos (except krizotil) or in mixtures, including mixtures containing krizotil,-0.50 fibres per cm3.
 
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