Checking the efficiency of ventilation systems. ventilation efficiency. Frequency of inspections

18.10.2019

Shows how quickly the exhaust air is removed from the room and is determined by the percentage of concentration harmful impurities in the exhaust air to the concentration of harmful impurities in the room .

Efficiency determines the quality of air exchange and shows how the ventilation system is able to provide comfortable conditions for clean air. This indicator of air exchange directly depends on the geometry of the room, the relative position of the supply and exhaust ducts, the density and distribution of sources of harmful impurities, etc.

Another parameter that determines the quality is the coefficient of air exchange.

The air exchange rate is a percentage of the air replacement rate in the room, which can be determined by the formula:

This parameter depends on the conditions of air distribution in the room, the location and geometrical parameters of diffusers, the location of heat sources, etc. To date, there are two types of air exchange in an enclosed space - ventilation by mixing and displacement.

8. Supply and exhaust ventilation system. Scope of ventilation systems with positive and negative air balance Scope of systems with recirculation;

Supply and exhaust general ventilation

It is used in rooms where it is necessary to provide increased and reliable air exchange. With this type of mechanical ventilation in production rooms, where a significant amount of harmful gases, vapors, dust is released, the exhaust must be 10% larger than the inflow so that harmful substances are not forced out into adjacent rooms with less damage.

In system supply- exhaust ventilation it is possible to use not only outdoor air, but also indoor air after cleaning. Such reuse of indoor air is called recirculation and is carried out in cold period of the year to save heat spent on heating the supply air

The supply ventilation system with mechanical stimulation can be made with recycling. Recirculation is the mixing of exhaust air with supply air. Recycling can be complete or partial. Partial recirculation is used in conventional ventilation systems in work time because outside air is needed in the room. The minimum amount of outside air should not be less than the sanitary standard. The use of recirculation allows you to save heat consumption in winter.

9. Systems of local ventilation. Purpose and scope;

local ventilation- this is an air exchange system in a limited part of space, the microclimate of which differs from its general atmosphere. That is, in fact, this type of ventilation is intended for installation at a separately considered workplace.

In rooms with a local emission of harmful substances, the use of local ventilation can reduce the amount of supplied and exhausted air by several times.

Types of local ventilation

To create a ventilation system at the workplace, one of two types is formed - exhaust or supply local ventilation.

exhaust local ventilation It is used for localized foci of harmful substances, when it is possible to prevent their spread throughout the production area. It consists in capturing and removing harmful emissions emitted into the air of the room. With its help, the emission of dust, smoke, gases is organized.

Forced local ventilation designed for intensive delivery directly to the workplace fresh air, its cooling if necessary, as well as blowing with cooled air currents, if there is a significant thermal exposure. Application of local ventilation

Local ventilation is in many cases justified, and often simply objectively necessary. It is applied practically in any industrial branches, including in mines, chemical, metallurgical industries.

Depending on the type of hazard source (machine, bath, etc.), various local suctions are used, exhaust hoods, exhaust panels, etc. Onboard suction, for example, is conveniently located around the perimeter of the baths.

Benefits of Local Ventilation

These include, first of all, the ecological necessity associated with the most effective protection of the health of a worker in hazardous production. With its help, they prevent the occurrence and development of pulmonary and cancerous diseases, allergies, irritation of the mucous membrane of the eyes, and headaches.

The second significant advantage should be called the economic efficiency of its application. It consists in saving energy costs (up to 60%), as well as in increasing the productivity of working personnel (according to statistics - up to 20%). In addition, local ventilation contributes to additional heating of the air in the production room, which creates another savings item.

The state of ventilation largely determines the level of compliance of the working conditions existing in the organization with regulatory requirements. It is clear that at the design stage, the required efficiency, the ability of ventilation systems to provide comfortable and safe conditions for people to work in buildings and structures, was incorporated into the designed ventilation systems. But, in the process of construction, and then operation, over time, deviations from the results of the functioning of ventilation systems laid down by the project accumulate. They become ineffective, for many reasons. But, as a rule, not all.

Specialists of Expert Ecology LLC carry out work on:

Hygienic and (or) technical assessment of the efficiency of ventilation systems;

Measurements and assessment of industrial gas and dust emissions into the atmosphere from sources at industrial enterprises.

Such works are authorized to be carried out only by organizations that have a Testing Laboratory accredited in the prescribed manner and specially trained specialists (clause 1, article 42 of the Federal Law 52-FZ).

The testing laboratory of Expert Ecology LLC is accredited (accreditation certificate No. RA.RU.21VG04). Specialists of Expert Ecology LLC have appropriate training according to approved methods.

The purpose of the work is to determine the compliance of the parameters of the efficiency of the ventilation systems with regulatory requirements, to determine the concentration of harmful substances in the air of the working area, in emissions into the atmosphere.

Scope of work:

Hygienic / technical assessment of the efficiency of ventilation systems:

Inspection of ventilation systems (state assessment, study of documentation, determination of points for instrumental measurements), calculation of the cost of work;

Carrying out instrumental measurements of air movement parameters, parameters of gas and dust flows (and the content of harmful and / or hazardous substances in the air) at pre-calculated points;

Determination of the air exchange rate in the premises where it should be determined;

Carrying out calculations, estimates and registration protocols of laboratory and instrumental measurements with a brief conclusion about the efficiency of ventilation systems.

Compilation of a report inspections of ventilation systems with a description of their current technical condition and performance, as well as recommendations to eliminate the causes of inefficient operation of the surveyed systems.

Registration (or renewal) of passports ventilation systems in accordance with the current normative documentation(collection of technical characteristics, drawing up aspiration schemes).

Held:

Periodically, in educational institutions, health care;

Periodically, in industrial premises.

When commissioning construction projects;

Ventilation systems should be checked for efficiency:

a) in rooms where it is possible to release harmful substances of classes 1 and 2 - once a month;

b) systems of local exhaust and local supply ventilation- 1 time per year;

c) systems of general exchange mechanical and natural ventilation- 1 time in 3 years (except for healthcare institutions - there annually).

Why do you need a performance appraisal?

This is a kind of "ventilation audit". From the report received after the work, any manager, even far from technology, will see the specific current state of ventilation not in assessments like “bad” or “good”, but in specific numbers and terms characterizing this state. And, if in general, "good":

Optimize the costs of ongoing maintenance of ventilation systems;

Use the protocols of laboratory studies, when conducting a hygienic (when the air is also examined for the content of harmful substances) assessment, for the purposes of "Production Control", which reduces its cost;

Get more positive results in the case of a Special Evaluation of Working Conditions.

If, in general, "good not very good":

Estimate volume and cost realistically necessary repairs or restoration of inefficient ventilation systems;

Justify the amount of funding for the repair or reconstruction of inefficient ventilation systems;

Form technical task contractor for the repair or reconstruction of ventilation systems.

The cost of work. It is calculated after the inspection of the object of work. It includes: professional activity insurance, employee insurance, Vehicle, equipment and instruments of Expert Ecology LLC, overheads and other expenses necessary for the implementation of work. The work is carried out without the involvement of the Customer's transport, without distracting the Customer's employees, except for responsible persons who must provide technical documentation and be present during laboratory tests.

The order of calculations. No advance payment. For large volumes - according to the schedule. For the amount of work actually done.

Turnaround time . From 7 days to a year, depending on the scope of work.

For the entire period of our work claims, statements of claim and there were no litigations by service consumers and state regulatory authorities.

How to measure effectiveness ventilation units?

Answer

The effectiveness of ventilation units is assessed when checking the operation of ventilation units and establishing their compliance with:

passport details,
requirements "GOST R EN 13779-2007. National standard Russian Federation. Ventilation in non-residential buildings. Technical requirements for ventilation and air conditioning systems,
"SP 60.13330.2016. Code of Practice. Heating, ventilation and air conditioning. Updated version of SNiP 41-01-2003".

Sample act:

The act of checking the efficiency of ventilation

Commission consisting of:

chairman of the commission ________________________________________________,

(full name, position)

members of the commission: ________________________________________________________

(full name, position)

______________________________________________________

(full name, position)

in the period from ___ hours "___" ____ to ____ hours "___" ___________

G. checked the efficiency of ventilation at the facility _______

By the address: ________________________.

(name, functional purpose)

At the same time, it is established:

1. Technical documentation of the ventilation system as part of __________

Developed by ______________________________________.

(developer, designer, etc.)

2. Checking the efficiency of ventilation was carried out by the method _________

(methods of verification and calculation)

3. Checking the serviceability of backup ventilation systems and sealing

devices carried out by their trial run.

4. The efficiency of ventilation complies (or does not comply - indicate in which part) the requirements of clause 3.4 "GOST REN 13779-2007. National Standard of the Russian Federation. Ventilation in non-residential buildings. Technical requirements for ventilation and air conditioning systems" and "SP 60.13330. 2016. Code of Practice "Heating, ventilation and air conditioning. Updated version of SNiP 41-01-2003",

__________________________________________________________________________.

Conclusions and proposals of the commission: ______________________________________________

__________________________________________________________________________.

"___"__________ ____ G.

Commission Chairman: ________________________________________________

(full name, signature, date)

Members of the commission: _____________________________________________________________

(full name, signature, date)

_______________________________________________________

(full name, signature, date)

The effectiveness of ventilation units is also evaluated when you control the air environment in the premises for compliance with the requirements:

- "GOST 12.1.005-88. Interstate standard. System of labor safety standards. General sanitary and hygienic requirements for the air of the working area"

- "SanPiN 2.2.4.548-96. 2.2.4. Physical factors of the working environment. Hygienic requirements for the microclimate of industrial premises. Sanitary rules and norms."

If the ventilation units are in good working order and the air in the premises corresponds to the norm, then the ventilation units operate efficiently, in accordance with their passport characteristics.

See, for example, "POT RO 14000-001-98. Rules for labor protection at enterprises and organizations of mechanical engineering", paragraphs 3.45.1-3.45.50. In particular: “3.45.43. The efficiency of ventilation should be checked systematically by control measurements with an analysis of the state of the air environment.

See the Guidelines "Sanitary and hygienic control of ventilation systems in industrial premises" (approved on September 5, 1987 No. 4425-87).

The guidelines are intended for use by bodies and institutions of the sanitary and epidemiological service in the implementation of preventive and ongoing sanitary supervision of ventilation at designed and operating industrial enterprises, as well as for sanitary laboratories and ventilation services of enterprises when monitoring systems industrial ventilation, the state of the air environment and the microclimate of industrial premises.

Preventive sanitary supervision of ventilation systems of industrial enterprises is carried out when:

a) design, construction, reconstruction or change in the profile and technology of production at enterprises, workshops, sites;

b) commissioning of newly installed ventilation systems;

c) commissioning of reconstructed ventilation systems;

d) commissioning of new types technological equipment, new technological processes and new chemical substances that could be harmful to the human body or contaminate environment. See item 1.3.

According to p.p. 1.7., 1.8 operating ventilation systems should be regularly checked by the ventilation services or sanitary laboratories of enterprises within the following periods:

a) in rooms where it is possible to release

harmful substances of hazard class 1 and 2 - once a month

b) systems of local exhaust and local

supply ventilation - 1 time per year

c) systems of general exchange mechanical and

natural ventilation - 1 time in 3 years.

Monitoring compliance with the frequency of ventilation checks should be carried out by sanitary and epidemiological stations.

Overall volume necessary research conducted by sanitary laboratories and ventilation services of industrial enterprises and plans for these studies at enterprises, workshops, sites should be coordinated with the sanitary and epidemiological station.

According to clause 3.1. Guidelines during sanitary and hygienic control of mechanical and natural ventilation, as well as local exhausts of all types, efficiency is assessed as the ability to maintain air parameters in the working area of the production room that meet the requirements of GOST SSBT "Working area air. General sanitary and hygienic requirements" and Hygienic requirements for the microclimate industrial premises, SanPiN 2.2.4.548-96.

According to clause 1.10. Guidelines representative of the sanitary and epidemiological station before the control of ventilation systems should familiarize themselves with the following documents:

A duly approved ventilation project, as well as a list of deviations from the project;

Acts of inspection and acceptance of hidden works;

Protocols of technical tests and adjustment of ventilation systems;

Passports of ventilation systems;

Planned preventive maintenance (PPR) schedules, maintenance and operation logs for ventilation equipment.

According to clause 3.6. MU: “the performance of mechanical ventilation systems should be measured in sections of the main air ducts on the discharge or suction lines. It is allowed to determine the overall performance of the system by summing the performance of all branches of the system.

A discrepancy between the design and actual performance of mechanical ventilation systems, not exceeding +/- 10%, is considered acceptable.

To determine the actual rate of air exchange, due to the operation of mechanical ventilation, the performance of all supply and all exhaust systems serving this room is measured ... ".

Unfortunately, you did not specify your type of activity. For a number of activities, the relevant FNP, SanPiNs are in force, where, for example, there is a section “Requirements for heating, ventilation of industrial premises”. The requirements of this section You should also be guided by the assessment of the effectiveness of ventilation.

See also:

Order of the Ministry of Energy of the Russian Federation of March 24, 2003 No. 115 "On approval of the Rules technical operation thermal power plants.

Extracts:

9.4.17. For each supply ventilation unit, air heating system, a passport is drawn up with technical specification and installation diagram (Appendix No. 9).

- "GOST 34060-2017. Interstate standard. Network engineering buildings and structures internal. Testing and adjustment of ventilation and air conditioning systems. Rules for conducting and monitoring the execution of work.

The need to check ventilation

The main condition for the correct operation of ventilation equipment is production control or verification of performance. The need to identify the degree of efficiency of ventilation performance is indicated in GOST and SNiP. The inspection of the equipment takes place according to the schedule planned by the administration of the enterprise. Equipment inspections should be carried out on a daily basis and the inspection results recorded in a proper log.
It is often difficult to identify the inefficiency of ventilation. The equipment can function properly, but not with maximum force - it does not draw out exhaust air well or supplies fresh air. Residents of new houses with installed central air conditioners and ventilation, have to deal with poor general condition, lack of sleep and experience frequent headaches. The "source" of such troubles is often the poor functioning of ventilation.
In production, dust, toxic or fetid fumes, and heat are “thrown out” into the air. Here it is important that the production workshops function to the maximum. If the removal of harmful secretions is of poor quality, this will become the basis for injury to personnel, development occupational diseases and sometimes even death. And in this situation, conventional methods of inspecting ventilation are not effective.
Establishment of ventilation performance should also be carried out before inspections by sanitary and epidemiological authorities.

Ventilation Check Frequency

Inspection of ventilation systems and shafts when using tools is carried out in rooms in which:
. combustible, explosive, radioactive or toxic substances of I-II classes are released - once a month;
. built in supply and exhaust system- once a year;
. natural or mechanical general exchange system - once every three years.
Inspection and determination of the effective operation of ventilation - a combination of instrumental and laboratory measurements.
The performance of the ventilation system is evaluated using the measurement method:
. air velocity in the ventilation ducts and in the air duct;
. air exchange rate (calculated).
Measurements can be high and low - and in these two cases, this means that the ventilation is not working correctly.
Verification Procedures:
. Inspection of the natural ventilation system
It is carried out before putting the building into use. The results fit into the act of the primary examination.
. Inspection of the artificial ventilation system
The condition and correct operation of all parts of supply, mixed or exhaust ventilation are assessed. The data are entered into the protocol of laboratory measurements. The client is issued a ventilation passport and a conclusion on whether the system complies or not with the design standards.
Often, the assessment of the energy efficiency of the ventilation system is carried out in several stages. At the initial stage, the main shortcomings are revealed:
. malfunction of the flexible components of the system;
. lack of tightness of the body and air duct;
. a small number of drive belts;
. fan imbalance.
All identified problems are recorded in the list of defects. After their removal, the second stage is carried out - checking the efficiency of the ventilation system with the help of tools.
There are situations (if the client does not have the opportunity to eliminate the identified problems for a short time) when the verification is carried out in one step. In this case, all identified problems fit into the protocol for measuring the efficiency of ventilation operation.

Carrying out work

To evaluate the ventilation performance, measurements are required:
. Microclimate in rooms with ventilation. The volume of carbon dioxide in the work area and beyond is estimated.
. Air structure. This indicator is most often determined in industrial enterprises. For this, aerosol and gas analyzes of the air composition in the working areas are performed.
. Aerodynamic experiments. Carried out according to the methodology of GOST.
Determining the performance of the ventilation system is carried out through pneumometric openings, which are located on the most probable axis of symmetry of the air flow in the branches of the air ducts. If the place for the measurement was chosen erroneously, then the percentage of calculation errors increases, thereby making them unnecessary.
Air parameters are set using air samples taken during working hours and in places where the personnel is located. In some cases, up to five samples are taken at each location. For sampling, aspirators or traction stimulators are used.
To calculate the ventilation performance, certain tools are used:
. roulette;
. flashlight;
. thermometer;
. micromanometer or differential pressure gauge;
. pneumometric tubes;
. funnel anemometers;
. tachometer.
The data obtained as a result of checking ventilation with the help of instruments is entered into a summary table. Most companies immediately produce an electronic version of the act, since the calculation of the ventilation system performance is performed by a computer using special programs. You can always contact consultants and find out the principles of checking ventilation in an apartment or house.
Checking ventilation without instruments
In some cases, checking the functionality of the ventilation system is carried out without the use of instruments.
A sheet of paper is used to check the exhaust ventilation. If it "holds" on the ventilation grate, it follows that the draft is good. But this is not quite the correct way. Due to the fact that the sheet at the outlet of the channel is held not due to air movement, but due to different pressures in the room and in the ventilation duct, creating in some cases a gravitational pressure.
Smoke can be used to determine the efficiency of exhaust ventilation. Light a cigarette under the exhaust duct. If the smoke "stretches" to the ventilation grate, then the ventilation is working well. If the smoke gradually spreads throughout the room, then the ventilation does not function correctly.
Using the above methods of checking the functioning of ventilation, it is possible to determine the approximate efficiency of work. After all, the results obtained are not recorded anywhere, and no calculations are carried out on their basis.

Purpose of the ventilation test

During the checks to establish the productivity of the functioning of ventilation, various “flaws” “emerge”, subsequently being the “basis” dangerous moments in production. During the inspection, it is determined whether the ventilation is correctly calculated at the design stage, whether the equipment withstands the load and provides the necessary traction.
Measurements are taken to calculate the air flow and reduce the pressure in the system and in the mine.
Industrial ventilation is a complex electronics connection high precision and mechanics, including numerous elements. The performance of the ventilation system cannot be assessed on your own this should be done by experts.
Ventilation is inspected only by licensed companies. The contracting authority provides a system maintainer who is well versed in the structure and confident in the location of the main nodes. If there are more than ten ventilation units, the assistance of an electrician is required. In the future, after receiving the data, the act of malfunctions and the table of the volume of air that is supplied in the room and removed from it for a certain period of time are filled in at the factory. Some companies almost instantly provide an estimate of work to remove "defects" and improve the productivity of the entire ventilation system.

Ventilation efficiency

The air exchange coefficient is an indicator of the rational use of ventilation.
This indicator is calculated using a special formula:
K \u003d (Tu-Tpr) \ (Toz-Tpr)
. K - indicator of rational use of ventilation
. Tu - the temperature level of the air vented outside the service area, measured in degrees Celsius
. Tpr - temperature level of incoming air
. Toz - the temperature level of the air in the area that is served

Commissioning of newly built or reconstructed facilities. Federal Law of December 30, 2009 N 384-FZ "Technical Regulations on the Safety of Buildings and Structures". Article 20. Requirements for ensuring air quality: "The design documentation of buildings and structures must provide for the equipment of buildings and structures with a ventilation system. The design documentation for buildings and structures may provide for the equipment of premises with an air conditioning system. Ventilation and air conditioning systems must provide supply to air rooms with the content of harmful substances not exceeding the maximum permissible concentrations for such rooms or for the working area of industrial premises.

Inspection of existing ventilation systems in accordance with the current requirements of the bodies of Rospotrebnadzor and Rostekhnadzor. For compliance with thematic GOSTs, SanPiNam, RD and other regulatory documents.

Inspection of ventilation systems to develop measures to improve working conditions.

Only a licensed/certified/accredited organization can evaluate ventilation performance. Procedures confirming the efficiency of ventilation systems are activities that require special special skills and knowledge of the regulatory framework.

Buildings and premises with a constant presence of people, without the emission of harmful gases and dust, equipped with a microclimate maintenance system. Such objects include almost all modern office buildings, shopping centers.
Industrial buildings and premises with the release of pollutants into the air of the working area.
Premises with special requirements for the composition of the air environment and microclimate: kindergartens, hospitals, schools.

As you can see, ventilation is used in almost every building and room.

Periodic ventilation of premises through windows and doors.
Ventilation with natural and mechanical draft induction.
Air heating and air conditioning systems.

Ventilation is a sanitary and technical means that completes the system of measures to improve the indoor air environment. With the help of ventilation, they combat excess heat and moisture, as well as gases, vapors and dust.

Direct methods include the speed and temperature of air flows, performance, developed pressure and fan speed, pressure difference or vacuum, noise and vibration of ventilation system elements, concentration of harmful substances in the supply air.

Indirect methods include - assessment of the compliance of the air environment of the production facility with sanitary standards in terms of the concentration of harmful substances in the air of the working area, temperature, relative humidity and air mobility, and the intensity of thermal radiation.

Checking the efficiency of ventilation is carried out by measuring the temperature and speed of air flows in the working area, open openings and working sections of air inlets, as well as installation, transport and aeration openings, in supply jets from air distribution devices, air showers and curtains, as well as determining the performance of fans and the pressures developed by them in the air ducts of the supply and exhaust systems, general exchange, built into the equipment of local suction and aspiration shelters and measuring the pressure difference or rarefaction in production premises relative to neighboring premises or the atmosphere, in cabins, boxes, shelters.

The performance of ventilation systems of local exhausts, aspiration shelters, etc. is determined by the formula:

L \u003d Vav * F * 3600 m3 / h,

Where Vav - average speed, m/s, F is the cross-sectional area of the opening, air duct, local suction. 3600 is the number of seconds in one hour.

Based on the results of the measurements, a passport of the ventilation system is compiled, which is used as the final stage of certification of ventilation installations. Also, only a protocol of instrumental measurements can be drawn up if the passport of the ventilation unit is already available.

The passport of the ventilation unit is the main document in which all test results, parameters of the studied environment (humidity level, temperature, chemical composition air and its mobility). The passport gives the right to the official use of a particular object, confirms the completion of all the necessary complex of works for its design, adjustment and verification. Certification is needed to register purchased ventilation equipment (this is especially true for public and industrial buildings), confirmation that the requirements sanitary norms are performed.

One of the conditions for the competent operation of ventilation systems is constant production control, or evaluation of their effectiveness. It is carried out in order to identify pressure losses, unaccounted for air flow. Periodic evaluation of ventilation performance is an important part of its use.

The main purpose for which ventilation measurements are carried out for efficiency is to detect problems and malfunctions that entail a danger to people in the premises and the entire building as a whole.

The secondary objectives of the review are:

assess whether the calculations were made correctly at the design stage of the ventilation system;
find out if it's good enough existing installations cope with loads, how they maintain traction;
find opportunities for energy saving, reducing the cost of operating systems;
confirm compliance with the norms and requirements of sanitary and epidemiological, technical and supervisory, fire authorities;
recalculate system parameters after its modification, reconstruction, repair;
successfully pass the certification.

In order to prevent the accumulation of excess carbon dioxide in the premises, people maintain their working capacity, do not feel drowsiness, malaise, dizziness, ventilation ducts must be clean and passable. Full air exchange is especially important where there are conditions for the formation high humidity(kitchens, saunas, showers, swimming pools) - in a favorable environment for them, bacteria, mold and fungus quickly multiply.

For industrial, warehouse and laboratory complexes, an assessment of the effectiveness of ventilation systems is also necessary. If explosive, volatile, poisonous and flammable substances are not removed from the premises, this will lead to dramatic consequences. The equipment can work, but not exhaust all the polluted air to the end, it is bad to supply fresh air from the outside, which negatively affects the microclimate in the premises.

The main regulatory legal acts regulating the need for and procedure for assessing the effectiveness of ventilation systems:

Federal Law "On the sanitary and epidemiological well-being of the population" dated March 30, 1999 N 52-FZ;
GOST 12.4.021-75 System of labor safety standards (SSBT). Ventilation systems. General requirements(with Change No. 1);
GOST 12.3.018-79 System of labor safety standards (SSBT). Ventilation systems. Aerodynamic test methods;
GOST 12.1.005-88 System of labor safety standards (SSBT). General sanitary and hygienic requirements for the air of the working area (with Amendment No. 1);
GOST 30494-2011 Residential and public buildings. Indoor microclimate parameters (as amended);
GOST R 52539-2006 Air purity in medical institutions. General requirements;
GOST R EN 13779-2007 Ventilation in non-residential buildings. Technical requirements for ventilation and air conditioning systems;
SanPiN 2.2.4.548-96 Hygiene requirements to the microclimate of industrial premises;
SanPiN 2.1.2.2645-10 "Sanitary and epidemiological requirements for living conditions in residential buildings and premises";
SanPiN 2.1.3.2630-10 "Sanitary and epidemiological requirements for organizations engaged in medical activities" (as amended on June 10, 2016);
SP 73.13330.2016 (SNiP 3.05.01-85) Internal sanitary systems of buildings;
SP 60.13330.2012 Heating, ventilation and air conditioning. Updated edition of SNiP 41-01-2003;
SP 1.1.1058-01 Organization and conduct production control for compliance with sanitary rules and the implementation of sanitary and anti-epidemic (preventive) measures;
R NOSTROY 2.15.3-2011 Internal engineering networks of buildings and structures. Recommendations for testing and adjustment of ventilation and air conditioning systems;
Indoor environmental input parameters for design and assessment of energy performance of buildings addressing indoor air quality, thermal environment, lighting and acoustics);
Ventilation for non-residential buildings - Performance requirements for ventilation and room-conditioning systems; German version EN 13779-2007:2007) and other.

Checking the effectiveness of ventilation is a set of measures, measurements (laboratory, instrumental) and observations that are carried out by qualified specialists. They determine what is the speed of air movement in the elements of the system, calculate the key parameters (for example, the multiplicity).

The list of studies includes:

assessment of natural ventilation - channels, technical openings, vents, and so on;
checking mechanical installations and equipment - it is necessary to evaluate the performance of supply and exhaust systems, their aerodynamics, and conduct laboratory tests.

The complex of verification procedures in the analysis of the effectiveness of ventilation systems includes the following actions and measurements:

checking flexible elements for damage, tightness of cases, casings and air ducts, balance of fans, integrity and number of belts and drives;
measurement of air flow rate, CO2 content, multiplicity calculation, determination of all microclimate parameters, sampling during working hours, at several points;
carrying out aerodynamic tests according to GOST methods - using pneumometric holes;
entering test results into summary tables, processing, execution of inspection protocols, acts and conclusions.