Government Decree No. 148 / 2006 Coll.
Government regulation on health protection against adverse effects of noise and vibration
Valid
Effective from 01.06.2006
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148
GOVERNMENT REGULATION
of 15 March 2006
on the protection of health from adverse effects of noise and vibration
The Government mandates pursuant to § 108 (3) of Act No. 258 / 2000 Coll., on the Protection of Public Health and on the amendment of certain related laws, to implement § 30, 32 and § 34 (1) and § 134c (7) of Act No. 65 / 1965 Coll., Labour Code, as amended by Act No. 155 / 2000 Coll.:
SUBJECT MATTER OF THE ADJUSTMENT
(1) This Regulation (1) implements the relevant provisions of the European Community2), and provides for
(a) hygiene limits for noise and vibrations for a place intended or customary for the exercise of workers' activities (hereinafter referred to as "workplaces"), the minimum range of measures to protect workers' health and the assessment of noise and vibration risks for workplaces;
b) Sanitary noise limits for a protected indoor building area, a protected outdoor building area and a protected outdoor area,
(c) hygiene limits of vibrations for the protected inner space of buildings;
(d) the method of measuring and evaluating noise and vibrations for daytime and night hours.
(2) This Regulation shall not apply to:
(a) noise from the use of the apartment;
(b) noise and vibration caused by the implementation and training of fire fighting, rescue and disposal operations, as well as security and military actions;
(c) acoustic warning signals related to security measures and the protection of human life, health and property.
_
Constant and variable noise
(1) The hygiene limit for eight-hour working hours (hereinafter referred to as the "permissible exposure limit") of steady-state and variable noise at work, expressed as:
(a) equivalent to the sound pressure level A LAeq, 8h is equal to 85 dB; or
(b) exposure to sound A EA, 8h is equal to 3640 Pa2s, unless otherwise specified.
(2) The hygienic limit of steady-state and variable noise for workplaces on which mental work, which is intensive for attention and concentration, is performed and for workplaces intended for creative work, expressed in equivalent sound pressure level A Laeq, 8h is equal to 50 dB.
(3) The hygiene limit for workplaces on which the mental work of a routine nature, including the control unit expressed in equivalent sound pressure level A Laeq, T is equal to 60 dB. In this case, the duration of the interference noise shall preferably be chosen as the evaluation period.
(4) The hygiene limit of fixed and variable noise for workplaces in production and storage buildings, except those referred to in paragraphs 2 and 3, where noise does not arise from work activities carried out at these workplaces, but enters or is caused by ventilation or heating equipment of these workplaces, expressed in equivalent sound pressure level A is LAeq, T, is equal to 70 dB; at other workplaces this level must not exceed 55 dB.
(5) If the working time during the working week is not evenly distributed or when the noise level changes during the week, but the individual daily noise exposure does not differ by more than 10 dB in LAeq, T from the long-term average and none of the exposures exceed the Lamax 107 dB sound pressure level, an assessment may be used based on the average weekly noise exposure.
(6) Average weekly exposure of LAeq noise, w is determined by relation
LAeq, w = 10.lg15 dost jk = 1n100,1. LAeq, 8hk, dB,
where n... is the number of working days during the working week.
Impulse noise
(1) The permissible exposure limit of the impulse noise expressed in:
(a) equivalent to the sound pressure level A LAeq, 8h is equal to 85 dB; or
(b) exposure to sound A EA, 8h is equal to 3640 Pa2s.
(2) The permissible exposure limit of the impulse noise expressed in:
(a) the peak sound pressure C pCpeak is equal to 200 Pa; or
(b) the peak sound pressure level C LCpeak is equal to 140 dB.
(3) The hygiene limit for impulse noise at the workplace is determined in accordance with Section 2.
(4) The determination of the average weekly exposure to impulse noise shall be used only if the working time during the working week is not evenly distributed, or when the noise level at work changes during the week, but the individual weekly exposure to noise does not differ by more than 10 dB in the equivalent sound pressure level A from the long-term average, and none of the exposures exceed the maximum sound pressure level A Lamax 107 dB.
(5) The average weekly exposure to impulse noise is determined in accordance with Section 2.
High frequency noise
Allowed exposure limit for high-frequency noise expressed in equivalent sound pressure levels in third octave bands of 8 kHz, 10 kHz, 12,5 kHz and 16 kHz Lteq, 8h is equal to 75 dB; high-frequency noise is audible sound with tone components in the frequency band of more than 8 kHz.
Ultrasound
Allowed ultrasound exposure limit, expressed in equivalent Lteq sound pressure level, 8h in a third octave band of 20 kHz, 25 kHz, 31,5 kHz and 40 kHz Lteq, 8h is equal to 105 dB.
Infrastics and low frequency noise
(1) The permissible exposure limit for infrasound and low-frequency noise expressed as equivalent sound pressure level G LGeq, 8h is equal to 116 dB; low-frequency noise is audible sound with tone components in the frequency band of less than 100 Hz.
(2) The permissible exposure limit of the infrasound, expressed in equivalent sound pressure levels in third octave bands with a mean frequency of 1 Hz to 16 Hz Lteq, 8h is equal to 110 dB.
(3) Allowed low-frequency noise exposure limit, expressed in equivalent sound pressure levels in third octave bands 20 Hz to 40 Hz Lteq, 8h is equal to 105 dB.
(4) For short-term exposure to low-frequency noise within 8 minutes from the working shift expressed in the maximum sound pressure levels of Ltmax in the one-third octave bands of 1 Hz to 16 Hz shall not exceed 137 dB and in the one-third octave bands of 20 Hz to 40 Hz, Ltmax shall not exceed 132 dB.
Hygienic limit of noise, infrasound and ultrasound at workplaces other than eight hours working hours
(1) Hygienic limit of exposure to noise, infrasound, low-frequency and high-frequency noise and ultrasound for working hours other than eight hours (480 minutes) T in minutes shall be determined by adding to the permitted exposure limits LAeq, 8h, Lteq, 8h, or LGeq, 8h the KT correction to be determined according to the relationship
KT = 10.lg (480 / T), [dB].
(2) Hygienic sound exposure limit And for other hours T more than 480 minutes shall be determined by multiplying the value EA, 8h 3640 Pa2s by the kT factor to be determined by reference
kT = 480 / T [-].
Assessment of noise risk and minimum scope of measures to protect workers' health
(1) The risk of exposure to noise to workers must be eliminated or at least limited to a minimum in accordance with the availability of noise-related technical measures. In assessing the risk of noise, the employer shall take particular account of:
(a) the level, type and duration of the exposure, including the exposure to impulse noise;
(b) permissible exposure and hygiene limits;
(c) the effects of noise on the health and safety of workers, in particular young workers, pregnant women, breast-feeding women and mothers by the end of the ninth month after birth;
(d) effects on the health and safety of workers resulting from the current exposure to factors forming part of the technology which may thereby increase the risk of injury, in particular hearing,
(e) indirect effects resulting from interactions between noise and warning signals or other sounds to be monitored to reduce the risk of accidents;
(f) information on noise emissions provided by the manufacturer of the machine, tool or other device;
(g) the existence of alternative work equipment designed to reduce noise emissions laid down by specific legislation3);
(h) extension of noise exposure over eight hours' working hours;
(i) relevant information resulting from health surveillance and available published information;
(j) the availability of hearing protectors with appropriate attenuation characteristics.
(2) The organisation of workplaces on which the work associated with exposure to noise, the location of means of production and equipment, the choice of working tools, working procedures and working methods is or will be carried out must aim at reducing the risk of noise at its source.
(3) Training of staff performing work associated with an exposure to steady-state or variable noise whose equivalent sound pressure level A LAeq, 8h exceeds 80 dB, or work associated with exposure to other types of noise whose values exceed their permissible exposure limit shall include in particular information on:
(a) the correct use of means of production, equipment and work tools;
(b) noise sources at the workplace;
(c) the type and effects of the noise and its permissible exposure limits;
(d) results of noise measurement;
(e) measures taken to limit the level and duration of noise exposure;
(f) the correct use of personal protective equipment;
(g) appropriate working procedures to minimise exposure to noise;
(h) procedures for detecting possible hearing damage;
(i) the purpose of medical preventive examinations carried out by racing preventive care facilities.
(4) Noise protection or noise protection systems shall be located in such a way as to absorb such noise or reduce the spread of noise outside such workplaces.
(5) Regular and proper maintenance of production equipment, equipment and work tools at workplaces where noise exposure work is carried out must ensure that the wear and tear rate is not the cause of the noise increase.
(6) If a personal noise protection device is used continuously to limit its performance during the work, safety breaks shall be included. For safety breaks, the staff member shall not be exposed to noise exceeding the permissible exposure limit.
Minimum range of measures to reduce noise exposure
(1) If the assessment of the measured values shows that, despite the measures applied to eliminate or minimise noise, the equivalent noise levels exceed A permissible exposure limit of 80 dB, or that the average peak sound pressure C is greater than 112 Pa, shall be provided by the employer to staff members with personal protective equipment to protect hearing effective in the area of noise frequencies.
(2) If the permissible exposure limit of 85 dB or the maximum permissible value of 200 Pa is exceeded, the employer must ensure that the personal protective equipment is used by workers.
CONSTRUCTION PROTECTED INTERNAL AREA, PROTECTED RURAL AREA AND PROTECTED RURAL AREA
Hygienic noise limits in the protected interior of buildings
(1) The noise values are equivalent to the sound pressure level A LAeq, T and the maximum sound pressure level A Lamax. The equivalent sound pressure level A LAeq, T is set for 8 continuous and consecutive noise-related hours (LAeq, 8h) at night for the loudest 1 hour (LAeq, 1h). For road noise (4), except for special purpose roads, and for runway noise and air traffic noise, the equivalent sound pressure level A LAeq, T is determined for the whole day (LAeq, 16h) and the whole night (LAeq, 8h) 5.
(2) Hygienic limit at equivalent sound pressure level A shall be determined for ambient air noise and for building noise within the object by the sum of the basic sound pressure level A LAeq, T shall be equal to 40 dB and the corrections taking into account the type of protected space and the daytime and night time referred to in Annex 2 to this Regulation. If there is noise with tone components or if there is a significant information character, further correction -5 dB is added. Music or singing shall be considered noise with tone components; speech is considered to be noise with a significant information character. Noise with tone components means the noise in which the frequency spectrum is more than 5 dB higher than the sound pressure levels in both adjacent third octave bands and in the 10 Hz to 160 Hz frequency band, where applicable, the equivalent sound pressure level in this third octave band Lteq / T is higher than the hearing threshold established for that frequency band as set out in the table in Annex 1 to this Regulation.
(3) Hygienic limit at maximum sound pressure level A shall be determined for noise spreading from sources within the object by adding the basic maximum sound pressure level A Lamax equal to 40 dB and corrections taking into account the type of protected interior space and the daytime and night time referred to in Annex 2 to this Regulation. If the noise contains a tone component or if it has a significant information character, further correction -5 dB is added. Noise from sources inside the object is considered to be noise from sources located outside this object, which penetrates this object in a way other than air, especially by constructions or subsoil.
(4) Hygienic limit at equivalent sound pressure level For noise from the construction activity inside the LAeq object, s is determined by adding + 15 dB to the hygienic limit at the equivalent sound pressure level A LAeq, T determined in accordance with paragraph 2 on working days for the period between 7 and 21. The hygienic limit at the equivalent sound pressure level A LAeq, s for noise from construction activity on working days for a period of less than 14 hours shall be calculated as set out in Annex 2 to this Regulation. The first and second sentences shall not apply to health and welfare establishments where construction works are carried out in the operation of such facilities.
(5) The values of the optimum reversing time according to the relevant Czech technical standard must be respected in school classrooms, nursery rooms and nursery schools, as well as in cultural, school and public buildings.
(6) Hygienic limit at equivalent sound pressure level And for the sound of electronically amplified music, the audience space is determined for the time T is equal to 4 hours Laeq, T is equal to 100 dB.
Hygienic noise limits in the protected outdoor area of buildings and in the protected outdoor area
(1) Noise values, except for high energy impulse noise consisting of outdoor impulses resulting from heavy weapons fire, explosions of explosives with a mass greater than 25 g equivalent to the weight of trinitrotoluene and a sonic bang, are expressed in equivalent sound pressure level A LAeq, T. During the day it is set for 8 continuous and consecutive loudest hours (LAeq, 8h), at night for the loudest 1 hour (LAeq, 1h). For road noise, except for special purpose roads, and for air traffic noise, the equivalent sound level A LAeq, T shall be determined for the whole day (LAeq, 16h) and the whole night (LAeq, 8h).
(2) The high impulse noise generated by outdoor impulses resulting from light weapons fire, explosions of explosives below 25 g equivalent to the mass of trinitrotoluene and from the impact of solids shall be expressed as the equivalent sound pressure level A LAeq, T referred to in paragraph 1.
(3) The high energy impulse noise is expressed as equivalent to the sound pressure level C LCeq, T and the average sound exposure level C LCE of individual impulses. It is set for 8 continuous and consecutive hours (LCeq, 8h), at night for the loudest hour (LCeq, 1h).
(4) The hygiene limit at the equivalent sound pressure level A, with the exception of air traffic noise and high energy impulse noise, is determined by the sum of the basic sound pressure level A LAeq, T is equal to 50 dB and the corrections taking account of the type of protected space and the daytime and night time referred to in Annex 3 to this Regulation. For high impulse noise, additional correction -12 dB is added. If the noise contains a tone component or if it has a significantly informative character such as speech, further correction -5 dB is added.
(5) The hygiene limit at the equivalent sound pressure level C of the high energy impulse noise is determined for the daily time LCeq, 8h is equal to 83 dB, for the night time LCeq, 1h is equal to 40 dB. The equivalent sound pressure level C LCeq, T shall be calculated as set out in Annex 3 to this Regulation.
(6) Hygienic limit at equivalent sound pressure level A from air traffic refers to a characteristic flight day and is determined for the whole day by the sound pressure level A LAeq, 16h is equal to 60 dB and for the whole night by the sound pressure level A LAeq, 8h is equal to 50 dB.
(7) Hygienic limit at equivalent sound pressure level For noise from construction activity LAeq, s shall be determined by adding to the hygiene limit equivalent to the sound pressure level A LAeq, T determined in accordance with paragraph 4, the correction taking into account the period considered in Annex 3 to this Regulation. The hygiene limit at the equivalent sound pressure level A LAeq, s for the noise from the construction activity for the period between 7 and 21 hours for a period of less than 14 hours shall be calculated as set out in Annex 3 to this Regulation.
VIBRATION ON WORKERS
Allowed vibration exposure limit
(1) Allowed exposure limit of hand-transmitted vibration expressed as an average aggregate weighted
(a) the acceleration level of the bottle, 8h is equal to 123 dB; or
b) the acceleration value ahv, 8h is equal to 1,4 m.s-2.
(2) For vibrations transmitted on the hands of workers, the permissible exposure limit refers to the aggregate value of translational vibrations determined from weighted acceleration values in three perpendicular directions according to the hand coordinate system.
(3) Allowed vibration exposure limit transmitted in a special way to workers causing intensive oscillation at the upper spine and head, expressed as an average weighted
(a) the Law vibration acceleration level, 8h is equal to 100 dB; or
b) value of aew vibration acceleration, 8h is equal to 0,1 m.s.2
(4) Allowed exposure limit of total vertical and horizontal vibrations transmitted to staff, expressed as an average weighted
(a) the Law vibration acceleration level, 8h in dB is equal to 110 dB; or
b) the acceleration value aew, 8h is equal to 0,315 m.s-2.
(5) The permissible exposure limit for total vibrations applies to both fixed and variable vibrations and shocks or shocks when the main part of their energy is contained in the monitored frequency band.
(6) Total vibrations parallel to the longitudinal axis of the body are assessed in a manner applicable to vertical vibrations and vibrations in directions perpendicular to the longitudinal axis of the body in a manner applicable to horizontal vibrations.
Hygienic vibration limit for working hours other than eight hours
(1) Hygienic limit of average aggregate weighted vibration acceleration levels for other working hours T more than 480 minutes shall be determined by adding to the permissible exposure limit Law, 8h or Lahw, 8h the KT correction to be determined according to the relation
KT = 10.lg (480 / T), [dB].
(2) Hygienic limit of average weighted vibration acceleration values for other working hours T more than 480 minutes shall be determined by multiplying the permissible exposure limit aew, 8h or ahv, 8h by the kT factor to be determined according to the relation
kT = 480 / T [-].
(3) KT correction and kT factor for other working hours T than 480 minutes shall not be used for the assessment of vibration transmitted in a special way.
(4) For exposure to total vibrations over 10 minutes and shorter permissible exposure limit is equal to 127 dB or 2,3 m.s.2
(5) For hand-transmitted vibration exposure for 20 minutes and shorter permissible exposure limit is equal to 137 dB or 7,1 m.s-2.
Determination of vibration exposure per working week
(1) If averaging vibration exposures per working week is required, the average aggregate weighted vibration acceleration Law shall be determined from the Lawi values for each working day and weekly exposure shall be determined according to the relation
LAW = 10.log15 IRELAND = 1n100,1. Lawi, dB,
where n... is the number of working days during the working week.
The average weighted average effective aew vibration acceleration shall be determined by the same procedure according to the formula
aew = 15 dost r = 1naewi2, m.s.2
(2) Assessment according to the average weekly vibration exposure set for eight-hour working hours may only be used in workplaces where working time is not evenly distributed or where vibrations change during the week, but the individual weekly vibration exposure does not differ significantly and at any one of the exposures during any working time the average aggregate vibration acceleration weighted level does not exceed the permissible exposure limit or, where applicable, the permitted exposure limit adjusted by the KT correction or the kT factor.
Hygienic limits for total vertical vibrations of less than 0,5 Hz
(1) Hygienic limit of the average weighted acceleration of total vertical vibrations with a frequency below 0,5 Hz
(a) for a daily exposure period not exceeding 120 min Law, T equals 120 dB or aew, T equals 1 m.s-2; and
(b) for a daily exposure period exceeding 120 min Law, T is equal to 114 dB or aew, T is equal to 0,5 m.s-2.
(2) Hygienic limits for total vertical vibrations of less than 0,5 Hz refer to working positions on self-driving machines and their time of exposure to workers.
Determination and assessment of vibration risk
(1) The employer shall carry out a risk assessment based on the knowledge of the data on the estimated level of vibration load and conditions of use of the equipment indicated by the manufacturer. The assessment of the risk on the basis of the knowledge of the data reported by the manufacturer shall not replace measurements. The assessment and measurement of vibrations shall be carried out regularly and further whenever conditions of work change.
(2) In assessing the risk of vibration, the employer shall take particular account of:
(a) the type and duration of exposure, including exposure to intermittent vibration and repeated shocks;
(b) permissible exposure or hygiene limits laid down for the types of vibration concerned;
(c) the effects of vibration on the health and safety of young workers, pregnant women, breast-feeding women and mothers by the end of the ninth month after birth;
(d) indirect effects on the safety of the worker resulting from interactions between vibration and the work site or other equipment;
(e) the creation of conditions to ensure safe work and safe workplaces using information provided by manufacturers of work equipment;
(f) the possibility of introducing technical equipment designed to reduce vibration exposure;
(g) extension of exposure to total vibrations over eight-hour working hours;
(h) working conditions associated with vibration exposure, in particular cold loads;
(i) relevant information resulting from health surveillance and available published information.
Vibrations in protected indoor areas of buildings and workplaces
(1) Basic hygiene limit of vibrations during the period of their T-activity in protected building space, expressed as an average weighted
(a) the LAW vibration acceleration level, T is equal to 71 dB; or
(b) the acceleration aew is equal to 0,0036 m / s2.
(2) The hygiene limits of vibrations in the protected interior areas of buildings apply to horizontal and vertical vibrations at the place of residence of persons and to the time of exposure of the vibration source.
(3) The correction of the basic hygiene limit referred to in paragraph 1 is adjusted in the table in Annex 4 to this Regulation depending on the type of space, time of day and nature of vibration.
The assessment of vibrations at workplaces and the determination of their basic hygiene limit and its corrections shall be treated mutatis mutandis in accordance with Section 17.
METHOD OF MEASUREMENT AND ASSESSMENT OF NOISE AND VIBRATION
(1) The measurement of noise and vibrations, including their calculation, and the assessment of noise and vibrations, shall be carried out according to methods and terminology relating to fields of electroacoustics, acoustics and vibrations contained in the relevant Czech technical standards. If they are complied with, the result shall be considered to be proven.
(2) Where paragraph 1 cannot be followed, the method used shall be accompanied by evidence of its capture, accuracy and reproducibility.
(3) When measuring or calculating noise and vibration, uncertainties corresponding to the measurement or calculation method shall be reported; These shall be applied in the assessment of measured or calculated values.
TRANSITIONAL AND FINAL PROVISIONS
Transitional provision
Paragraph 10 (5) shall not apply to buildings for cultural or public purposes which have been merged before the date of entry into force of this Regulation.
Repeal
The following shall be deleted:
1. Government Decree No. 502 / 2000 Coll., on the protection of health against adverse effects of noise and vibration.
2. Government Decree No. 88 / 2004 Coll., amending Government Decree No. 502 / 2000 Coll., on the protection of health against adverse effects of noise and vibration.
Efficacy
This Regulation shall enter into force on 1 June 2006.
Prime Minister:
Ing. Paroubek v. r.
Minister for Health:
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Regulation Information
| Citation | Government Decree No. 148 / 2006 Coll., on the protection of health against adverse effects of noise and vibration |
|---|---|
| Regulation Type | - |
| Author | - |
| Collection | Code of Laws |
| Date of Promulgation | 21.04.2006 |
|---|---|
| Effective from | 01.06.2006 |
| Effective until | - |
| Status | Valid |
The regulation text is for informational purposes only.
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