Characteristics of works.

Control over the implementation of the established technology during the extraction, processing, storage, storage and loading of raw materials, semi-finished products and finished enrichment products at crushing and screening and concentrating plants, which have in the schemes: up to two stages of crushing, up to two classes of classification by size and one stage of dry and wet enrichment. Acceptance of raw materials in terms of quality with the use of electrophysical devices in the control. Selection, cutting, packaging, marking, delivery, storage of samples. Carrying out sieve and other analyzes and mechanical tests. Verification of compliance of product quality with current technical conditions and standards. Monitoring the status and operation of measuring equipment. Certification of shipped products. Issue of party certificates. Keeping a log of sampling and testing of raw materials and products by class and assortment. Drawing up acts on raw materials that do not meet the established technical requirements. Accounting for mined or shipped minerals.

What should know:

• device and principle of operation of complex testing installations, sample cutting equipment, measuring instruments and other equipment used for testing and quality control, rules for using them
• technological schemes for processing raw materials
• current technical conditions and standards for incoming raw materials and finished products
• ways to control the quality of enrichment products
• types of marriage during extraction, processing, storage
• sampling, cutting and testing methods and product certification rules
• rules for the preparation, labeling, shipment of raw materials. When monitoring the technology and quality of raw materials, semi-finished products and enrichment products at crushing and screening and processing plants that have in the schemes: more than two stages of crushing, more than two classes of classification by size, more than one stage of dry and wet enrichment - 3rd category.

2nd category

§ 10. Controller of enrichment products 2nd category

Characteristics of works. Control over the implementation of the established technology during the extraction, processing, storage, storage and loading of raw materials, semi-finished products and finished enrichment products at crushing and screening and concentrating plants, which have in the schemes: up to two stages of crushing, up to two classes of classification by size and one stage of dry and wet enrichment. Acceptance of raw materials in terms of quality with the use of electrophysical devices in the control. Selection, cutting, packaging, marking, delivery, storage of samples. Carrying out sieve and other analyzes and mechanical tests. Verification of compliance of product quality with current technical conditions and standards. Monitoring the status and operation of measuring equipment. Certification of shipped products. Issue of party certificates. Keeping a log of sampling and testing of raw materials and products by class and assortment. Drawing up acts on raw materials that do not meet the established technical requirements. Accounting for mined or shipped minerals.
Must know: device and principle of operation of complex testing installations, sample cutting equipment, measuring instruments and other equipment used for testing and quality control, rules for using them; technological schemes for processing raw materials; current technical conditions and standards for incoming raw materials and finished products; ways to control the quality of enrichment products; types of marriage during extraction, processing, storage; methods of sampling, cutting and testing of samples and rules for certification of products; rules for the preparation, labeling, shipment of raw materials.
When monitoring the technology and quality of raw materials, semi-finished products and enrichment products at crushing and screening and enrichment plants, having in the schemes: more than two stages of crushing, more than two classes of classification by size, more than one stage of dry and wet enrichment - 3rd category.

From July 1, 2016, employers are required to apply professional standards if the qualification requirements that an employee needs to perform a certain job function are established by the Labor Code, federal laws or other regulatory legal acts (Federal Law of May 2, 2015 No. 122-FZ).
To search for approved professional standards of the Ministry of Labor of the Russian Federation, use

General information about the enterprise. Characteristics of products, its consumers. The technological scheme of the enterprise, the purpose and characteristics of its workshops (factories).

The value of the concentrator in the production process.

General information about the technology of receiving, storing and homogenizing raw materials, ore preparation and production of finished products.

The main technological equipment of factories. Rudny yard (averaging warehouse), its purpose.

Organization of the workplace for the enrichment products controller. Inner order rules.

Topic 2 THEORY AND TECHNOLOGY OF ENRICHMENT PROCESSES

Purpose and methods of mineral processing. Enrichment indicators - degree of enrichment, product yield, degree of extraction of a useful component.

Crushing and grinding of minerals. Structures of crushers and mills. Screening. Types of screens. Classification. classifier structures.

Classification of enrichment methods. Gravitational enrichment methods. Flotation. Magnetic enrichment and magnetic separators. Electrical enrichment.

Dehydration and dust collection.

Testing, control and automation of enrichment processes.

Topic 3. TECHNICAL CONTROL

AT PROCESSING FACTORIES

Forms of technical control: active and passive.

Active control using the results of testing to adjust the operating modes of the equipment of factories, eliminate the causes and prevent the release of defects.

Passive control, verification of compliance of the quality of raw materials and finished products supplied to the factory with the requirements of regulatory documents.

Appointment of acceptance and preventive control. Output quality control of products.

Methods of statistical quality control. Random sampling plans required for input control of commodity deliveries, output control of finished products, as well as for selective control at intermediate stages of production within the enterprise. The use of control charts to monitor the stability of production. Methods for studying the causes of marriage.

Organization of quality control and accounting for the quantity entering the factory; controlled parameters.

Requirements for particle size distribution, moisture content, chemical composition and weight of raw materials entering this factory. Compliance of the quality of raw materials with technical specifications, GOSTs. Regulations for the control of incoming raw materials.

Organization of control of technological processes of storage and homogenization of raw materials, preparation of raw materials; controlled process parameters in these areas. Requirements for the chemical composition of raw materials after averaging; granulometric composition of crushed components, humidity; compliance of these indicators with the requirements of technological instructions.

Organization of control of technological processes in factories; its meaning and purpose. Controlled process parameters. Requirements of technological instructions to maintain the constancy of process parameters.

Organization of quality control of finished products. Controlled parameters (chemical, granulometric compositions); compliance with their technical requirements.

Rules for registration of technical control documentation, accounting for the quality and quantity of incoming raw materials and finished products. Registration of acts-claims for raw materials that do not meet the requirements of technical conditions, signals of violation of technological instructions, etc.

Improvement of technical control at concentrating plants.

Automation of the main operations of technical control. The use of computers to account for and control the quantity and quality of incoming raw materials and finished products. New technical control schemes for newly built and reconstructed factories. Methods and forms of organization of quality control and accounting of raw materials entering the warehouses of factories. New equipment used for sampling, transportation and cutting samples, determining the granulometric and chemical composition of raw materials and finished products.

Progressive methods of control of technological processes of warehousing and averaging of materials.

New GOSTs and specifications for sampling and sample preparation. Methods for determining the physical and physico-chemical properties, the chemical composition of raw materials and the finished product.

Documentation systems for technical quality control, accounting for the quantity of incoming raw materials and the finished product.

Topic 4. METHODS FOR TESTING RAW MATERIALS, SEMI-FINISHED PRODUCTS AND FINISHED PRODUCTS AT PROCESSING PLANTS

Appointment of sampling at concentrating plants. The most important factors determining the choice of sampling method. Influence of segregation (stratification) of crushed raw materials on the uniformity of distribution of controlled components in a layer in cars, on conveyor belts, in stacks.

The concept of the sample of raw materials. Types and purpose of samples. Private samples; quantity of a product taken from one point. Replacement samples; the amount of product made up of private samples taken during the shift.

Samples for express analysis. The quantity of a product, consisting of one or more partial samples, characterizing the operation of a production line or a workshop as a whole for a certain period of time and serving for operational control of the technological process of preparing raw materials and semi-finished products. Sample for chemical analysis; the amount of product resulting from the preparation of a rapid or replacement sample. Samples for determining the moisture content and particle size distribution of raw materials and finished products. Strength test,

Determination of the minimum weight of a representative sample.

Methods and methods for sampling raw materials and finished products.

Schemes and schedules of testing. Testing of immovable materials. Scooping method used for testing immovable materials in wagons, barges, stacks, warehouses. Options for testing materials from railway cars and along routes. Schemes for taking partial samples. The selection order is checkerboard by buffer layers, zigzags, diagonals, envelope, double envelope. The method of pits used for testing dumps, sludge storages and other accumulations of materials that are heterogeneous in height. The method of ditches used for testing sludge storages and dumps of small height.

Fractional (selective) method. Testing finely divided concentrates with a probe.

Testing materials in motion. Methods of longitudinal and transverse sections using sample cutters.

Methodology and schemes for cutting samples. Combined methods of sections, tested flows. Methods and operations of cutting. Drying, crushing, grinding and mixing of samples. Mixing methods (shoveling, ring and cone method, rolling, mechanical mixing). Sample reduction, its purpose. Methods of reduction (quartering, squaring, reduction with the help of mechanical contractors). Marking, recording and storage of samples.

Maps of shift testing of raw materials and finished products at factories. Place and time of sampling. Method and methods for determining the granulometric composition of the concentrate. Methodology and methods for determining strength.

General concepts of testing bulk materials in a moving stream and at rest.

Features of testing materials in factories. The concept of segregation of bulk materials in stacks, bunkers, wagons and on conveyor belts.

Theoretical foundations and calculation formulas for determining the optimal sample mass.

Methods and methods for sampling raw materials to determine their chemical and granulometric composition, humidity; strength properties and recoverability.

Technological schemes for testing materials and preparing samples for the determination of controlled properties.

Accuracy of sampling and determination of the properties of the tested material.

The concept of the homogeneity of bulk material. Features of testing materials in railway cars, on ships and warehouses.

Manual and mechanized methods of sampling. Private sampling schemes for wagons and routes. Sampling procedure: location of sampling points in wagons, on ships and warehouses. Ways of testing stacks: pitting, drilling of wells, sampling by trenches. Features of testing materials in a continuous moving stream. Methods of crossing the tested flows: longitudinal, transverse, combined.

The main operations for processing (cutting) common samples of raw materials and finished products of factories to the mass of laboratory and analytical samples: drying, crushing (grinding, grinding), mixing (averaging), reduction.

Registration of passport samples. Marking and storage of samples and their duplicates.

Rules for maintaining a laboratory journal.

Improving methods for testing and controlling the moisture content of raw materials.

Standard methods for determining the granulometric composition of ores and concentrates.

GOSTs for determining the strength properties of raw materials and semi-finished products.

Topic 5

Samplers, their purpose. Hand tool for sampling materials from wagons and from conveyor belts during their stops, for testing finely ground ores and concentrates.

Rules for the use of hand tools and sampling techniques.

Mechanical samplers, their purpose and varieties.

Samplers for lumpy and small materials, their types (grab, bucket, rotary knife, sliding gate, drum). Device, technical characteristics and operating rules. Purpose and principle of action of pause mechanisms.

Automatic samplers.

Mechanisms and equipment for dividing and reducing samples; their types, device, features of operation.

Equipment for crushing and grinding samples. Characteristics of jaw, roller, combined laboratory crushers. The device and operation of disk and vibrating grinders, ball and rod laboratory mills for preparing samples for chemical analysis.

Equipment for screening and screening of samples, raw materials and finished products. Sieves for manual screening of samples. Device, technical characteristics and operating rules for sieve analyzers, laboratory and industrial vibrating and oscillating screens.

Designs of sample cutting plants.

Sample dehydration equipment. Laboratory vacuum filters, filter presses, dryers; their structure and rules of operation.

Auxiliary equipment of sample cutting laboratories: tables for cutting samples, scales of various types, clocks, stopwatches, thermometers; their location and how to use them.

Equipment for determining the strength of raw materials and semi-finished products. The device and technical characteristics of testing machines for determining strength.

The main equipment for sampling and cutting samples used in mechanical (trial) laboratories of the technical control department of a mining enterprise and the state quality inspection.

Recent improvements in samplers and tools (manual and mechanical) for sampling.

Automation of sampling and cutting samples of bulk materials.

Features of the design of mechanical samplers and sample cutting plants.

Characteristics of equipment for dehydration and drying of samples; rules for its technical operation.

Device and technical characteristics, advanced methods of operation and maintenance of equipment for crushing, grinding and attrition of samples.

Design features and rules for the technical operation of equipment for determining the strength properties of materials.

Topic 6. CONTROL AND MEASURING EQUIPMENT

AT PROCESSING FACTORIES

The role of instrumentation in ensuring the normal course of technological processes in factories; requirements for her.

Classification of instrumentation.

Indicating and recording devices.

Control and measuring equipment used for control and management of technological processes.

Weight measuring devices, their types. Belt scales: types and principle of operation. Belt weighers, their technical characteristics, principle of operation and application.

The principle of operation of magnetoanisotropic weight sensors. The value of the linear load, providing the minimum error of weight meters. Advantages and disadvantages of various types of weight meters.

Level gauges in charge bins; their types, principle of operation, application. Sensors signaling the presence of the charge on the delivery from the bunkers.

Devices for measuring and recording the temperature of gases in furnaces, vacuum chambers and collectors of sintering and roasting machines. Device, principle of operation and application of thermocouples. The principle of operation and features of operation of pyrometers.

Instruments for measuring pressure, gas and air flow.

Instruments for measuring vacuum in vacuum systems. Manometers and vacuum gauges; the principle of their work. Flowmeters: types, operating principle. Gas analyzers, their purpose.

General concepts of automatic control and regulation. Control and regulation systems; the principle of their work. Types of automatic dosing systems, their advantages and disadvantages. Automated control systems for technological processes.

Autonomous automatic dosing system that maintains the specified ratio of components. Automatic control of the level of materials in the bunkers. Systems of automatic inclusion of reserve bunkers. Operation of systems for automatic control and management of the dosing process; control of their work. Identification of system deficiencies.

Efficiency and economic prerequisites for industrial automation. State system of instruments and means of automation (GSP). Classification of automatic process control systems.

Automatic control systems. Transmission of instrument readings over a distance. Components of the transmission system: sensors, secondary devices and communication channels. General information about sensors (sensing elements); their classification according to the measured parameter. The concept of secondary devices (measuring elements) and their types.

Pressure control. Classification of devices according to the type of measured value and principle of operation. Pressure gauges: principle of operation and scope.

Temperature control. Classification of devices. Expansion thermometers, thermocouples; the principle of their action.

Level gauges: types, purpose and application in these conditions.

Classification of devices for controlling the quantity and consumption of materials. Schemes of dispensers of solid and liquid materials. Classification, schemes and principle of operation of devices used to control the quality and composition of materials.

Automatic control systems (ACS). Linear systems. terminology used. Conditional images (in accordance with GOST) of controlled and adjustable values ​​of measuring and control instruments; receivers (sensing elements), actuators, regulators and additional devices. Numbering system for devices, automation and auxiliary devices.

Control objects, their main properties. Objects of continuous and intermittent action; features of their automation. Requirements for units, equipment and communications in terms of the possibility of their automation.

Typical control objects in production. Automation and mechanization of work in warehouses of raw materials. Automation of transport and dosing devices that provide the supply of components.

Instrumentation and control devices located on the control panel. The use of computer technology for process automation. Dispatching process control in factories. Communication systems. Prospects for complex mechanization and automation of enrichment processes.

Topic 7. STANDARDIZATION, CERTIFICATION AND PRODUCT QUALITY

Standardization, its role in improving product quality. Tasks of standardization. Categories of standards and objects of standardization. Types of standards and their characteristics. Responsibility of the enterprise for the release of products that do not meet the standards and specifications.

International Organization for Standardization - ISO.

ISO-9000 "Standards in the field of quality management and quality assurance", their purpose. The international standard ISO 9002-94 "Quality systems - a model for quality assurance in production, installation and maintenance" is a guarantor of products entering the international market.

Certification. Quality certificate. Purpose of certification.

Product quality control. Three levels of control.

Topic 8. ENVIRONMENTAL PROTECTION

RF Law "On Environmental Protection".

The concept of ecology as a scientific basis for environmental protection.

Measures for the protection of soil, air, water, flora and fauna. Environmental measures taken at enterprises and organizations.

Administrative and legal responsibility of managers and all employees for violations in the field of environmental protection.

Resource-saving, energy-saving technologies.

Waste production. Treatment facilities.

Wasteless technologies.

Industrial training

THEME PLAN

PROGRAM

Topic 1. INSTRUCTION ON SAFETY AND

INTRODUCTION TO PRODUCTION

General briefing on labor safety at the enterprise. Familiarization with the Safety Rules and with the emergency response plan (PLAS) and the actions of personnel in emergency situations.

Familiarization with the internal regulations, schemes for crossing railways, roads, crane operation areas. Acquaintance with the equipment of the factory, production technology; the procedure for receiving, storing and averaging materials in the warehouses of the factory.

Familiarization with the production (job) instructions of the controller, his workplace, the scheme for testing raw materials and finished products, sampling sites, equipment for sampling and cutting samples, instrumentation.

Briefing on labor safety and fire prevention measures at the controller's workplace.

Topic 2 TRAINING IN THE MAIN AND AUXILIARY OPERATIONS PERFORMED BY THE ENHANCEMENT PRODUCTS CONTROLLER

Familiarization with the instructions and methodology for sampling and cutting samples at factories.

Training in material sampling operations using hand tools. Mastering the methods of manual sampling of raw materials and finished products from wagons.

Practical acquaintance with the device of mechanical samplers of various types (gate, chain, bucket, screw, sector, etc.); training in material sampling techniques with their use. Mastering the skills of servicing automatic samplers.

Familiarization with the operating rules of accessories, tools and equipment for drying, grinding, mixing and dividing samples. Acquisition of skills in the use of drying cabinets, ovens, laboratory crushers of various types (jaw, hammer, roller), mills, attritors, sample dividers and reducers. Training in mechanical and manual grinding, mixing and sample reduction.

Mastering the rules for marking, issuing passports and storing samples; mastering the necessary operations.

Mastering methods for determining the moisture content of raw materials.

Acquisition of skills in operating equipment for sieving raw materials and finished products.

Mastering the operations of determining the granulometric composition of raw materials and finished products using hand tools and mechanical equipment.

Training in methods for determining the strength of raw materials and semi-finished products.

Familiarization with the schemes and schedules of sampling of raw materials. Study of state standards, specifications for raw materials, instructions for receiving, storing and averaging raw materials. Practical development of methods for assessing the quality of incoming raw materials, their compliance with passport data and the requirements of GOSTs or technical specifications. Mastering operations for the control testing of raw materials. Registration of acts in case of non-compliance of the quality of incoming raw materials with GOSTs or technical specifications. Acquisition of skills to control compliance with the rules for receiving, storing and averaging raw materials.

Familiarization with the control and measuring equipment of concentrating plants. Training in the use of indications of instrumentation. Mastering the operations of quality control of semi-finished products.

Mastering the procedure for maintaining logs of the quality of incoming raw materials, drawing up acts, claims for raw materials in cases of non-compliance of its quality with the requirements of GOSTs and technical conditions, passport data. Mastering the skills of documenting the quality and quantity of raw materials laid in piles.

Issuance of carload certificates. Keeping records of the quality of the preparation of components and semi-finished products, as well as the chemical composition and humidity.

Documentation of quality control of finished products in factories. Training in the rules for maintaining a shift report of the QCD controller on compliance with technological instructions. Registration of accounting documentation and certification of the quality of finished products.

Topic 3. INDEPENDENT PERFORMANCE OF WORKS

This job description has been translated automatically. Please note that automatic translation does not provide 100% accuracy, so there may be minor translation errors in the text.

Preface to job description

0.1. The document comes into force from the moment of its approval.

0.2. Document developer: _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _.

0.3. Document approved: _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _.

0.4. Periodic verification of this document is carried out at intervals not exceeding 3 years.

1. General Provisions

1.1. The position "Controller of products of enrichment of the 3rd category" belongs to the category "Workers".

1.2. Qualification requirements - complete or basic general secondary education. Obtaining a profession directly in production. Training. At least 1 year of work experience as a controller of enrichment products, 2nd category.

1.3. Knows and applies:
- the structure and principle of operation of complex test facilities, sampling equipment, measuring instruments and other equipment used for testing and quality control, the rules for using them;
- technological schemes for processing raw materials;
- current technical specifications or standards for incoming raw materials and finished products;
- methods of quality control;
- types of marriage during production, processing, storage and substandard;
- methods of sampling, processing and testing of samples, as well as the rules for certification of products;
- rules for the preparation, labeling, unloading of raw materials.

1.4. The controller of enrichment products of the 3rd category is appointed to the position and dismissed from the position by order of the organization (enterprise / institution).

1.5. The enrichment product controller of the 3rd category reports directly to _ _ _ _ _ _ _ _ _ _ .

1.6. The enrichment product controller of the 3rd category manages the work of _ _ _ _ _ _ _ _ _ _ .

1.7. The controller of enrichment products of the 3rd category during the absence is replaced by a duly appointed person who acquires the appropriate rights and is responsible for the proper performance of the duties assigned to him.

2. Description of work, tasks and job responsibilities

2.1. Carries out control over the implementation of the established technology during the extraction, processing, storage, storage and loading of raw materials, semi-finished products and finished products of enrichment crushing and screening and concentrating plants, having in the schemes: up to two stages of crushing, up to two classification classes by size and one stage of dry and wet enrichment; quality acceptance of raw materials.

2.2. Uses electrophysical devices during control.

2.3. Performs sampling, processing, packaging, marking, delivery, sample storage, sieve and other analyzes, as well as mechanical testing.

2.4. Makes checks of compliance of product quality with current technical conditions and standards.

2.5. Monitors the status and operation of measuring equipment.

2.6. Carries out certification of shipped products.

2.7. Issues party certificates.

2.8. Maintains a journal for testing raw materials and products by class and assortment.

2.9. Draws up acts on raw materials that do not meet the established technical requirements.

2.10. Maintains records of minerals being mined or shipped.

2.11. Knows, understands and applies the current regulatory documents relating to its activities.

2.12. Knows and fulfills the requirements of regulatory acts on labor and environmental protection, complies with the norms, methods and techniques for the safe performance of work.

3. Rights

3.1. The Grade 3 Enrichment Product Controller has the authority to take action to prevent and correct any irregularities or nonconformities.

3.2. The controller of enrichment products of the 3rd category has the right to receive all social guarantees provided for by law.

3.3. The controller of enrichment products of the 3rd category has the right to demand assistance in the performance of his duties and the exercise of rights.

3.4. The controller of enrichment products of the 3rd category has the right to demand the creation of organizational and technical conditions necessary for the performance of official duties and the provision of the necessary equipment and inventory.

3.5. The controller of enrichment products of the 3rd category has the right to get acquainted with the draft documents relating to his activities.

3.6. The controller of enrichment products of the 3rd category has the right to request and receive documents, materials and information necessary for the performance of his duties and instructions of the management.

3.7. The controller of enrichment products of the 3rd category has the right to improve his professional qualifications.

3.8. The controller of enrichment products of the 3rd category has the right to report all violations and inconsistencies identified in the course of its activities and make proposals for their elimination.

3.9. The controller of enrichment products of the 3rd category has the right to get acquainted with the documents defining the rights and obligations for the position held, the criteria for assessing the quality of the performance of official duties.

4. Responsibility

4.1. The controller of enrichment products of the 3rd category is responsible for non-fulfillment or untimely fulfillment of the duties assigned by this job description and (or) non-use of the rights granted.

4.2. The controller of enrichment products of the 3rd category is responsible for non-compliance with the rules of internal labor regulations, labor protection, safety, industrial sanitation and fire protection.

4.3. The controller of enrichment products of the 3rd category is responsible for disclosing information about the organization (enterprise/institution) that is a commercial secret.

4.4. The controller of enrichment products of the 3rd category is responsible for non-fulfillment or improper fulfillment of the requirements of the internal regulatory documents of the organization (enterprise / institution) and the legal orders of the management.

4.5. The controller of enrichment products of the 3rd category is responsible for offenses committed in the course of its activities, within the limits established by the current administrative, criminal and civil legislation.

4.6. The controller of enrichment products of the 3rd category is responsible for causing material damage to the organization (enterprise / institution) within the limits established by the current administrative, criminal and civil legislation.

4.7. The controller of enrichment products of the 3rd category is responsible for the misuse of the granted official powers, as well as their use for personal purposes.

5. Specialization

5.1. In the case of monitoring the technology and quality of raw materials, semi-finished products and enrichment products in crushing and screening and bagging plants, having in the schemes: more than two stages of crushing, more than two classes of classification by size, more than one stage of wet and dry enrichment.

Enrichment product controller

§ 10. Controller of enrichment products of the 2nd category

Job Description. Control over the implementation of the established technology during the extraction, processing, storage, storage and loading of raw materials, semi-finished products and finished enrichment products at crushing and screening and concentrating plants, which have in the schemes: up to two stages of crushing, up to two classes of classification by size and one stage of dry and wet enrichment. Acceptance of raw materials in terms of quality with the use of electrophysical devices in the control. Selection, cutting, packaging, marking, delivery, storage of samples. Carrying out sieve and other analyzes and mechanical tests. Verification of compliance of product quality with current technical conditions and standards. Monitoring the status and operation of measuring equipment. Certification of shipped products. Issue of party certificates. Keeping a log of sampling and testing of raw materials and products by class and assortment. Drawing up acts on raw materials that do not meet the established technical requirements. Accounting for mined or shipped minerals.

Must know: device and principle of operation of complex testing installations, sample cutting equipment, measuring instruments and other equipment used for testing and quality control, rules for using them; technological schemes for processing raw materials; current technical conditions and standards for incoming raw materials and finished products; ways to control the quality of enrichment products; types of marriage during extraction, processing, storage; methods of sampling, cutting and testing of samples and rules for certification of products; rules for the preparation, labeling, shipment of raw materials.

When monitoring the technology and quality of raw materials, semi-finished products and enrichment products at crushing and screening and enrichment plants, having in the schemes: more than two stages of crushing, more than two classes of classification by size, more than one stage of dry and wet enrichment - 3rd category.