Qualification requirements for a 5th category repairman. Production instructions for a repairman

JOB DESCRIPTION FOR REPAIRMAN 5TH GRADE

I. General provisions

  1. A 5th grade repairman is directly subordinate to ___________________.
  2. A 5th grade repairman follows the instructions of ___________________.
  3. A 5th grade repairman replaces ___________________.
  4. The 5th category repairman is replaced by ___________________.
  5. A repairman is appointed to the position and dismissed by the head of the department in agreement with the head of the department.
  6. Must know:
    - design features repaired equipment, units and machines;
    - technical specifications for repair, assembly, testing and adjustment and for the correct installation of equipment, units and machines;
    - technological process repair, assembly and installation of equipment;
    - rules for testing equipment for static and dynamic balancing of machines;
    - geometric constructions with complex markings;
    - methods for determining premature wear of parts;
    - methods for restoring and strengthening worn parts and applying a protective coating.
  7. _________________________________________________________________.

II. Job responsibilities

  1. Repair, installation, dismantling, testing, regulation and adjustment of complex equipment, units and machines and delivery after repair.
  2. Metalworking of parts and assemblies according to 6-7 qualifications.
  3. Disassembly, repair and assembly of components and equipment in conditions of intense and dense landings.
  4. _________________________________________________________________.
  5. _________________________________________________________________.

III. Rights


A repairman has the right:
  1. give instructions and assignments to employees subordinate to him on a range of issues included in his functional responsibilities.
  2. control the implementation of production tasks, timely execution of individual assignments by employees subordinate to him.
  3. request and receive necessary materials and documents related to his activities and the activities of his subordinate employees.
  4. interact with other services of the enterprise on production and other issues included in his functional responsibilities.
  5. get acquainted with draft decisions of the enterprise management concerning the activities of the Division.
  6. propose to the manager proposals for improving work related to the responsibilities provided for in this Job Description.
  7. submit for consideration by the manager proposals on rewarding distinguished employees and imposing penalties on violators of production and labor discipline.
  8. report to the manager about all identified violations and shortcomings in connection with the work performed.
  9. _________________________________________________________________.
  10. _________________________________________________________________.

IV. Responsibility


The repairman is responsible for:
  1. improper performance or failure to fulfill one’s official duties as provided for in this job description - within the limits determined by the labor legislation of Ukraine.
  2. violation of the rules and regulations governing the activities of the enterprise.
  3. When transferring to another job or being released from a position, the repairman is responsible for the proper and timely delivery of work to the person taking up the current position, and in the absence of one, to the person replacing him or directly to his supervisor.
  4. offenses committed in the course of carrying out their activities - within the limits determined by the current administrative, criminal and civil legislation of Ukraine.
  5. causing material damage- within the limits determined by the current labor and civil legislation of Ukraine.
  6. compliance current instructions, orders and instructions for maintaining trade secrets and confidential information.
  7. compliance with internal regulations, safety and fire safety rules.
  8. _________________________________________________________________.
  9. _________________________________________________________________.

I APPROVED

Director

_____________(_____________)

"____"_____________200____ g.

OPERATING INSTRUCTIONS

For a repairman

(5th category)

1. General Provisions

1.1. A repairman is hired and dismissed from work by order of the director of the enterprise on the recommendation of the chief engineer.

1.2. The repairman reports directly to the chief engineer.

1.3. In his activities, a repairman is guided by:

Charter of the enterprise;

Rules labor regulations;

Orders and instructions of the director of the enterprise (direct manager);

These operating instructions.

1.4. A repairman must know:

· design features of the equipment, units and machines being repaired; technical conditions for repair, assembly, testing and regulation and for the correct installation of equipment, units and machines;

· technological process of repair, assembly and installation of equipment;

· rules for testing equipment for static and dynamic balancing of machines;

· geometric constructions with complex markings;

· methods for determining premature wear of parts;

Methods for restoring and strengthening worn parts and applying protective coating;

· internal labor regulations.

2. Characteristics of work.

The repairman is tasked with:

2.1. Repair, installation, dismantling, testing, adjustment and adjustment of complex equipment, units and machines and delivery after repair.

2.2. Metalworking of parts and assemblies according to 6–7 qualifications.

2.3. Disassembly, repair and assembly of components and equipment in conditions of intense and dense landings.

4. Apparatuses, gas pipelines high pressure– inspection, repair and testing.

5. Complex film projection devices and developing machines - average repair.

6. Oxygen and argon equipment for open hearth furnaces - repair, maintenance.

7. Gas blowers – major renovation and tests.

8. Vacuum drying and ironing rollers – repair and adjustment.

9. Gearboxes of semi-automatic lathes – assembly and switching with mutual fitting of splined rollers and gears.

10. Oxygen booster compressors – major repairs.

11. Lifting machines – repair, adjustment and leveling of crane tracks.

12. Machines for sorting letters - repair.

13. Charging machines for open hearth furnaces – complete renovation with replacement of the shaft, adjustment of all mechanisms.

14. Loading machines - revision of the movement and rotation mechanism, disassembly, assembly, alignment and replacement of parts.

15. Automated washing machines – repair and adjustment.

16. Mills, screens, drying drums - overhaul, testing, adjustment and delivery.

17. Hydraulic feed mechanisms of metalworking machines - repair and adjustment.

18. Hydraulic drive mechanisms of machine tools - repair, assembly, adjustment.

19. Vacuum and fore-vacuum pumps – major repairs.

20. Blast furnaces - installation of an inclined bridge.

21. Reactors - repair.

22. Gearboxes for rotary kiln cranes and differential gearboxes for rolling mills - inspection, repair.

23. Robots and manipulators with program control with a repair complexity category of up to 20 units. – major repairs, adjustment.

24. Deep drilling rigs - repair.

25. Gear grinding, gear shaping, gear planing machines with complex curved guides - checking for accuracy.

26. Computer controlled machines - testing for rigidity.

27. Volumetric turbodrills, geared, jet-turbine, high-torque, with precision casting turbines - repair, assembly, installation, regulation, testing.

28. Vacuum evaporation units - disassembly, repair, assembly.

29. Cylinders, main and connecting rod bearings - check after running in and final fastening of all connections.

30. Economizers, steam superheaters, compressor and blower units - major repairs, delivery after testing.

31. Electric and ore-smelting furnaces - checking the alignment of the lifting screws, conveyor and fit of the furnace body on all four columns.

3. Responsibilities

· performs assigned work in a timely and high-quality manner;

takes place in in the prescribed manner periodic medical examinations;

· undergoes instructions on labor protection in accordance with the established procedure;

wears special clothes

· prepares workplace and personal protective equipment;

· checks the serviceability of equipment, devices, tools;

· complies with the requirements of personal hygiene and industrial sanitation;

· complies with the rules of use technological equipment, devices and tools, methods and techniques for safe work;

· immediately notifies the immediate supervisor of any deficiencies discovered during work;

· provides first (pre-medical) aid to victims of injury, poisoning, emergency situations and in case of sudden illness;

4. Responsibility

3.1. The repairman is subject to disciplinary action in accordance with current legislation.

3.2. The repairman bears financial responsibility for failure to ensure the safety of the material assets entrusted to him. The Employer is liable for damage caused to the employer within the limits determined by the current labor, criminal and civil legislation of the Republic of Belarus.

_____________________

I have read the Instructions: _________ _____________________

(signature) (signature decryption)

1.1. A 5th category repairman is a worker and reports directly to ……… (name of position/profession of the manager)

1.2. To work as a 5th category repairman, a person who has mastered educational programs average vocational education- training programs for skilled workers, basic vocational training programs - vocational training programs for workers' professions, retraining programs for workers, advanced training programs for workers.

1.3. It is not allowed for a 5th category repairman to perform work at a height of 1.3 m.

1.4. A 5th category repairman must know:

1) documents, objects, methods and techniques for performing lower-skilled work, provided for by production (professional) instructions and (or) professional standard;

2) requirements for the layout and equipment of the workplace;

3) rules for reading drawings;

4) purpose, design of universal devices and rules for the use of plumbing and instrumentation;

5) the design and principles of operation of the serviced components and mechanisms, equipment, units and machines;

6) basic technical data and characteristics of components and mechanisms, equipment, units and machines;

7) technological sequence of operations during diagnostics and control technical condition units and mechanisms, equipment, units and machines of average complexity;

8) technological sequence of operations when performing:

Fastening works;

Adjustment work;

Lubrication works;

9) methods for diagnosing performance characteristics complex nodes and mechanisms, equipment, units and machines;

10) methods of execution:

Fastening works;

Adjustment work;

Lubrication works;

11) rules and sequence of execution operations:

Disassembly and assembly of assembly units of complex components and mechanisms;

Replacement of complex components and mechanisms;

Adjustment of complex components and mechanisms;

Adjustments of complex components and mechanisms;

12) methods for diagnosing the technical condition of complex components and mechanisms;

13) special operational requirements to assembly units;

14) requirements for technical documentation of complex components and mechanisms;

15) rules for operating equipment, units and machines to maintain basic parameters and technical characteristics;

16) frequency and maintenance schedules for complex equipment, units and machines;

17) rules and procedure for preparing technical documentation for renovation work during maintenance;

18) methods and means of quality control of work performed;

19) basic mechanical properties processed materials;

20) typical defects during metalworking, the reasons for their occurrence and methods of prevention;

21) methods for eliminating defects during metalworking;

22) dimensional processing methods complex parts;

23) methods and sequence of fitting operations for metalworking of complex parts;

24) the main types and causes of defects during machining, methods of prevention and elimination;

25) signs symbol tolerances, qualities, roughness parameters, methods of basing workpieces;

26) general information about the system of tolerances and landings, grades and roughness parameters by grade;

27) principles of operation of grinding, table-drilling and sharpening machines;

28) technological process machining on grinding, table-drilling and sharpening machines;

29) purpose, rules and conditions of use of the most common clamping devices, measuring and cutting tools for machining parts on grinding, table-top drilling and sharpening machines;

30) types and purposes of hand and mechanized tools;

31) purpose, design and rules for using control and measuring instruments;

32) rules and sequence of measurements;

33) methods and means of quality control:

Mechanical processing;

Metalworking;

34) labor protection requirements during the maintenance of complex equipment, units and machines;

35) labor protection requirements when performing:

Work on grinding, benchtop drilling and sharpening machines;

Locksmith work;

Installation and dismantling works;

36) ……… (other requirements for necessary knowledge)

1.5. A 5th category repairman must be able to:

1) perform work (operations, actions) at lower levels;

2) maintain the condition of the workplace in accordance with labor protection, fire, industrial and environmental safety, rules for organizing a mechanic’s workplace when:

Maintenance;

Metalworking;

4) disconnect and de-energize complex components and mechanisms, equipment, units and machines;

5) produce:

Visual inspection of wear of components and mechanisms;

Measurements using instrumentation;

Fastening works;

Adjustment work;

Lubrication works;

6) draw up technical documentation for repair work during maintenance;

7) draw up defective statements for the repair of complex equipment, units and machines;

8) prepare assembly units for installation and dismantling work;

9) disassemble and reassemble assembly units, replace complex components and mechanisms;

10) carry out adjustment and adjustment of complex components and mechanisms;

11) choose metalworking and mechanized tools and devices when performing installation and dismantling work, for metalworking of complex parts;

12) make simple devices for installation and dismantling work;

13) make measurements using control and measuring instruments;

14) determine inter-operational allowances and tolerances for inter-operational dimensions;

15) make markings in accordance with the required technological sequence;

16) carry out chopping, straightening, bending, cutting, filing, drilling, countersinking, countersinking, and deployment of complex parts in accordance with the required technological sequence;

17) perform scraping, sawing, fitting and fitting, lapping, finishing, polishing;

18) determine the dimensions of parts and assemblies as universal and specialized measuring instruments in accordance with technical documentation;

19) check the compliance of complex parts and assemblies and auxiliary materials with the requirements of technical documentation (maps);

20) install and secure parts and assemblies in clamping devices of various types;

21) select and prepare for work cutting and control and measuring tools depending on the material being processed;

22) install optimal mode processing in accordance with the technological map;

23) manage:

Peeling machine;

Tabletop drilling machine;

Sharpening machine;

24) carry out processing in accordance with the technological route;

25) control the quality of work performed when:

Metalworking of complex parts using control and measuring tools;

Maintenance of complex equipment, units and machines, installation and dismantling work;

Mechanical processing of parts using control and measuring tools;

26) carry out Maintenance complex equipment, units and machines in compliance with labor protection requirements;

27) do:

Work on grinding, benchtop drilling and sharpening machines in compliance with labor protection requirements;

Installation and dismantling work in compliance with labor protection requirements;

Metalworking in compliance with labor protection requirements;

28) ……… (other requirements for necessary skills)

1.6. ……… (other general provisions)

2. Labor functions

2.1. The labor functions of a 5th category repairman are:

2.1.1. Maintenance and repair of complex parts, assemblies and mechanisms, equipment, units and machines:

1) maintenance of complex components and mechanisms, equipment, units and machines;

2) installation and dismantling of complex components and mechanisms;

3) metalworking of complex parts;

4) mechanical processing of complex parts and assemblies.

2.1.2. Management of repairmen of lower qualifications (category).

2.2. ……… (other functions)

3. Responsibilities

3.1. Before the start of the working day (shift), a 5th category repairman:

1) undergoes a pre-shift (preventive) medical examination in accordance with the established procedure;

2) receives a production task;

3) if necessary, undergoes training on labor protection;

4) takes over the shift;

5) checks the serviceability of devices, tools, equipment, etc., personal protective equipment;

6) ……… (other duties)

3.2. In the process of work, a repairman of the 5th category:

1) performs the work for which he has been instructed and authorized to work;

2) uses special clothing, safety shoes and other personal protective equipment;

3) receives instructions from the immediate supervisor on the performance of the task, safe techniques and methods of work;

4) complies with the rules for using technological equipment, devices and tools, methods and techniques for performing work safely;

5) immediately notify the immediate supervisor of all deficiencies discovered during work;

6) complies with the requirements of personal hygiene and industrial sanitation;

7) ……… (other duties)

3.3. During the working day (shift), a 5th category repairman performs the following duties as part of his job functions:

3.3.1. Within the framework of the labor function specified in subparagraph 1 of paragraph 2.1.1 of these instructions:

2) analyzes the initial data (technical documentation, unit, mechanism);

3) carries out diagnostics of the technical condition of complex components and mechanisms, equipment, units and machines;

4) performs adjustments of complex components and mechanisms, equipment, units and machines;

5) performs lubrication work;

6) determines violations in the operation of complex components and mechanisms, equipment, units and machines;

3.3.2. Within the framework of the labor function specified in subparagraph 2 of paragraph 2.1.1 of these instructions:

1) carries out preparatory and final operations and operations to maintain the workplace;

2) analyzes the initial data (technical documentation, components and mechanisms);

3) carries out diagnostics of the technical condition of complex components and mechanisms;

4) assembles and disassembles assembly units of complex components and mechanisms;

5) replaces complex components and mechanisms;

6) performs adjustments of complex components and mechanisms;

7) exercises control over the quality of work performed.

3.3.3. Within the framework of the labor function specified in subparagraph 3 of paragraph 2.1.1 of this instruction:

1) carries out preparatory and final operations and operations to maintain the workplace;

2) analyzes the source data (technical documentation, part);

3) performs dimensional processing of complex parts;

4) carries out fitting operations of metalworking of complex parts;

3.3.4. Within the framework of the labor function specified in subparagraph 4 of paragraph 2.1.1 of these instructions:

1) carries out preparatory and final operations and operations to maintain the workplace;

2) analyzes the initial data (technical documentation, part, assembly) to conduct the technological process of machining complex parts and assemblies;

3) prepares the machine for machining complex parts and assemblies;

4) carries out the technological process of machining complex parts and assemblies;

5) exercises control over the quality of work performed.

3.3.5. Within the framework of the labor function specified in paragraph 2.1.2 of this instruction:

1) issues shift assignments to repairmen of lower qualifications (grade);

2) organizes and coordinates the work of repairmen of lower qualifications (category);

3) gives instructions and explanations on the performance of work to repairmen of lower qualifications (category);

4) carries out quality control of work performed by repairmen of lower qualifications (grade).

3.4. At the end of the working day (shift), the repairman:

1) puts devices and tools in proper condition and transfers them for storage;

2) removes dirt from workwear and safety shoes, if necessary, places them for drying and storage;

3) submits established reports;

4) performs an inspection (self-examination);

5) hands over a shift;

6) ……… (other duties)

4. Rights

4.1. When performing his labor functions and duties, a 5th category repairman has labor rights provided for in the agreement concluded with the employee employment contract, Internal labor regulations, local regulations, Labor Code Russian Federation and other acts of labor legislation.

4.2. ……… (other provisions on employee rights)

5. Responsibility

5.1. A 5th category repairman is subject to disciplinary action in accordance with Art. 192 Labor Code Russian Federation for improper performance through his fault of the duties listed in this instruction.

5.2. A repairman of the 5th category carries financial liability for ensuring the safety of inventory items entrusted to him.

5.3. A repairman of the 5th category for committing offenses in the course of his activities, depending on their nature and consequences, is subject to civil, administrative and criminal liability in the manner prescribed by law.

5.4. ……… (other liability provisions)

6. Final provisions

6.1. This instruction has been developed on the basis of the Professional Standard "", approved by Order of the Ministry of Labor and Social Protection of the Russian Federation dated December 26, 2014 N 1164n, taking into account ……… (details of local regulations of the organization)

6.2. The employee is familiarized with this job description upon hiring (before signing the employment contract).

The fact that the employee has familiarized himself with this job description is confirmed by ……… (signature on the familiarization sheet, which is an integral part of this instruction (in the journal of familiarization with job descriptions); in a copy job description, kept by the employer; in another way)

6.3. ……… (other final provisions).

Characteristics of the work.

Repair, installation, dismantling, testing, regulation and adjustment of complex equipment, units and machines and delivery after repair. Mechanical processing of parts and assemblies according to 6 - 7 qualifications. Disassembly, repair and assembly of components and equipment in conditions of intense and dense landings.

What you should know:

  • design features of the equipment, units and machines being repaired
  • technical conditions for repair, assembly, testing and regulation and for the correct installation of equipment, units and machines
  • technological process of repair, assembly and installation of equipment
  • rules for testing equipment for static and dynamic balancing of machines
  • geometric constructions with complex markings
  • methods for determining premature wear of parts
  • methods for restoring and strengthening worn parts and applying a protective coating.

Work examples

  1. Automatic multi-spindle turret lathes, copying machines, jig boring machines, gear planing and roll lathes - average repair, installation, adjustment, accuracy testing, start-up and commissioning.
  2. High-pressure units (synthesis columns), separators, evaporators, water condensers, refrigerators - current and medium repairs.
  3. Washing and distillation devices - major repairs.
  4. Apparatuses, high pressure gas pipelines - inspection, repair and testing.
  5. Complex film projection devices and developing machines - average repair.
  6. Oxygen and argon equipment for open hearth furnaces - repair, maintenance.
  7. Gas blowers - overhaul and testing.
  8. Vacuum drying and ironing rollers - repair and adjustment.
  9. Gearboxes of semi-automatic lathes - assembly and switching with mutual fitting of splined rollers and gears.
  10. Oxygen booster compressors - overhaul.
  11. Lifting machines - repair, adjustment and leveling of crane tracks.
  12. Letter sorting machines - repair.
  13. Charging machines for open-hearth furnaces - complete repair with replacement of the shaft, adjustment of all mechanisms.
  14. Loading machines - inspection of the movement and rotation mechanism, disassembly, assembly, alignment and replacement of parts.
  15. Automated washing machines - repair and adjustment.
  16. Mills, screens, drying drums - overhaul, testing, adjustment and delivery.
  17. Hydraulic feed mechanisms of metalworking machines - repair and adjustment.
  18. Mechanisms of hydraulic pipelines of machine tools - repair, assembly, adjustment.
  19. Vacuum and fore-vacuum pumps - overhaul.
  20. Blast furnaces - installation of an inclined bridge.
  21. Reactors - repair.
  22. Gearboxes for rotary kiln cranes and differential gearboxes for rolling mills - inspection, repair.
  23. Robots and manipulators with program control with a repair complexity category of up to 20 units. - major repairs, adjustment.
  24. Deep drilling rigs - repair.
  25. Gear grinding, gear shaping, gear planing machines with complex curved guides - testing for accuracy.
  26. Computer controlled machines - testing for rigidity.
  27. Volumetric turbodrills, geared, jet-turbine, high-torque, with precision casting turbines - repair, assembly, installation, regulation, testing.
  28. Vacuum evaporation units - disassembly, repair, assembly.
  29. Cylinders, main and connecting rod bearings - check after running in and final fastening of all connections.
  30. Economizers, steam superheaters, compressor and blower units - overhaul, delivery after testing.
  31. Electric and ore-smelting furnaces - checking the alignment of the lifting screws, conveyor and fit of the furnace body on all four columns.

The job description of a mechanic regulates labor relations. The document contains general provisions about the position, requirements for education, work experience, knowledge, the order of subordination, occupation and dismissal of the employee from the position, a list of his functional duties, rights, and types of responsibilities.

The instructions are developed by the head of the organization’s department. The document is approved by the director of the organization.

Provided below standard form can be used when drawing up job descriptions for mechanical assembly mechanics, tool makers, car repair workers, etc. A number of provisions of the document may differ depending on the specialization of the employee.

Sample of a typical job description for a mechanic

I. General provisions

1. A mechanic belongs to the “workers” category.

2. The mechanic reports directly to the head of the department/general director of the organization.

3. The appointment and dismissal of a mechanic is carried out by order of the general director.

4. A person with at least secondary specialized education and experience in similar work of at least one year is appointed to the position of mechanic.

5. During the absence of a mechanic, his rights, functional duties, and responsibilities are transferred to another official, as reported in the organization order.

6. The mechanic in his activities is guided by:

  • internal labor regulations;
  • this job description;
  • The company's charter;
  • governing and regulatory acts of the organization;
  • orders, instructions from management;
  • orders of the immediate superior;
  • legislation of the Russian Federation.

7. The locksmith must know:

  • operating principles, equipment design, methods for restoring worn-out structures;
  • the procedure for disassembling, repairing, assembling parts, installing units, components, handling devices;
  • requirements for fits, tolerances, accuracy classes of parts;
  • time standards for completing work;
  • methods and conditions for using special, auxiliary equipment, measuring equipment;
  • standards for the consumption of materials, spare parts;
  • conditions for testing, adjustment, acceptance of mechanisms, components, assemblies after maintenance and repair;
  • handling rules, purpose of power tools.

II. Job responsibilities of a locksmith

The locksmith performs the following duties:

1. Sorts parts according to performance criteria after disassembly and cleaning.

2. Processes components and parts, carries out their static balancing.

3. Carry out inspections, inspections, and preventive inspections of parts and mechanisms.

4. Eliminates identified malfunctions and defects during the diagnostic period according to the decision of the immediate superior.

5. Assembles, configures, replaces spare parts, components, assemblies, equipment in accordance with the received work order.

6. Informs the immediate superior about identified malfunctions of parts, mechanisms and necessary measures for their elimination.

7. Disassembles, assembles, repairs units and parts of equipment in accordance with the governing documents of the organization for the work.

8. Uses special clothing and installed personal protective equipment while performing work.

9. Uses devices and equipment in compliance with safety and fire protection regulations.

10. Determines the causes of increased wear and failure of parts and mechanisms.

11. Prepares documents for the provision of materials, spare parts, and tools.

12. Maintains proper operation and timely inspection of parts and mechanisms.

13. Carefully uses and rationally uses entrusted tools and devices.

III. Rights

The locksmith has the right:

1. Do not begin to perform your functional duties if there is a danger to life or health.

2. Communicate with departments of the organization on work issues.

3. Participate in educational events and improve your skills.

4. Demand that the management of the organization form normal conditions for safe work and fulfillment of their duties.

5. Inform management about identified shortcomings in the organization’s activities and submit proposals for their elimination.

6. Consult with specialists on issues beyond the competence of a locksmith.

7. Receive information from managers about decisions regarding its activities.

8. Inform management of proposals for improving the organization’s activities.

9. Make decisions independently within your competence.

IV. Responsibility

The locksmith is responsible for:

1. Improper performance of one’s official duties.

3. Violation of the provisions of the organization’s governing documents.

4. Reliability of information provided to management about the functioning of mechanisms and equipment.

5. Results independent decisions, own actions.

6. Violation of safety standards, labor discipline, fire protection standards, and internal labor regulations.

7. Causing damage to the organization, its employees, the state, or clients.

Repairman

A repairman repairs and restores parts and mechanisms of equipment that is used for industrial, household, and technical activities.

Specific functional responsibilities of a repairman:

1. Scheduled preventive maintenance of equipment in accordance with the established schedule.

2. Accounting for the current mandrel and fixtures.

3. Setting up machines.

4. Processing of components and parts according to established qualifications (degrees of accuracy).