GB 47499-2026Safety specification for polysilicon produced by the improved Siemens method (English PDF)

4.1.1 General Rules

4.1.1.1 Enterprises shall, in accordance with the requirements of GB/T 33000, establish a system for identifying and acquiring applicable laws, regulations, standards, and other relevant information regarding enterprise safety production. Management system.

4.1.1.2 Enterprises shall promptly communicate applicable laws, regulations, standards and other requirements for work safety to relevant parties.

4.1.1.3 Enterprises should promptly publicize and train their employees on applicable laws, regulations, standards, and other requirements for work safety to improve their safety awareness. The legal awareness of practitioners and the standardization of safe production practices.

4.1.2 Conformity Assessment

4.1.2.1 Enterprises shall conduct a compliance assessment of their implementation of applicable laws, regulations, standards and other requirements for work safety at least once a year. Price, eliminate violations and illegal activities.

4.1.2.2 Enterprises shall submit a conformity assessment report, which shall include at least the following.

a) The suitability and adequacy of the obtained laws, regulations, standards and other requirements for work safety;

b) The company's implementation of safety production laws, regulations, standards, and other requirements, and whether there are any illegal or irregular activities. Behavior;

c) For phenomena and behaviors that do not comply with laws, regulations, standards, and other requirements for safe production, propose rectification requirements and check the effectiveness of rectification. Fruits, etc.

4.2.1 Target Indicators

4.2.1.1 Enterprises should adhere to the safety production policy of "safety first, prevention foremost, and comprehensive management." They should act in accordance with national laws and regulations, and in conjunction with their own circumstances. Based on industry practice, organizations should formulate documented safety production policies and objectives. Safety production objectives should be specific, reasonable, measurable, and achievable. It is advisable to combine, but is not limited to, the following.

a) Number of deaths and serious injuries;

b) Loss rate per million man-hours;

c) Occupational disease incidence rate;

d) The rate at which key personnel, safety management personnel, and special operations personnel hold valid certificates.

4.2.1.2 The safety production policy and objectives should meet the following requirements.

a) Document it and ensure its implementation by all practitioners;

b) Meets or exceeds the requirements of relevant laws and regulations;

c) Adapted to the enterprise's occupational health and safety risks;

d) Quantify the objectives;

e) It is readily available to the public.

4.2.1.3 Enterprises should sign safety target responsibility agreements, define quantifiable annual safety work targets, and conduct assessments. Enterprises should formulate annual safety... A comprehensive work plan is in place to ensure the effective achievement of annual safety goals.

4.2.2 Organizational Structure

4.2.2.1 Enterprises should establish a safety production committee (hereinafter referred to as the "Safety Committee"), set up a safety production management department, and establish a system from the Safety Committee to the grassroots level. A multi-level safety production management network.

4.2.2.2 Enterprises shall, in accordance with relevant regulations, appoint full-time safety management personnel and registered safety engineers. For details, please refer to the "Regulations of the People's Republic of China on the Management of Safety Management Personnel". The People's Republic of China's Production Safety Law and the Notice of the State Council on Further Strengthening Enterprise Production Safety Work in the Implementation of the "Regulations on Production Safety Work in Enterprises with Hazardous Chemicals" Implementation Opinions of the "Knowledge" document, etc.

4.2.3 Key Person in Charge of the Enterprise

4.2.3.1 The principal responsible person of the enterprise shall perform their duties in accordance with the requirements of relevant regulations. For details, please refer to the "Safety Law of the People's Republic of China". Total Production Method.

4.2.3.2 The principal responsible person of the enterprise should make clear, public, and documented safety commitments and ensure that these commitments are translated into necessary resources. Source support. The commitment includes, but is not limited to, the following.

a) Comply with the requirements of laws, regulations, standards, and procedures;

b) Implement the safety production policy and achieve safety production goals;

c) Prioritize safety and employee occupational health;

d) Provide employees with training and education opportunities to enhance their awareness of occupational safety and health;

e) Provide all necessary and required resources for safe production work;

f) Improve the inherent safety of processes and equipment to prevent accidents;

g) Encourage all employees to participate in identifying hazardous factors in their positions, assessing risks, and developing risk reduction or control measures;

h) Regularly organize hazard inspections, formulate hazard mitigation measures, and ensure the effectiveness of the measures;

i) Organize relevant personnel to formulate and implement emergency response plans;

j) Regularly organize meetings of the Safety Production Committee to specifically study and deploy the company's safety production work;

k) Adhere to continuous improvement and constantly enhance the level of enterprise safety production management, etc.

4.2.3.3 The principal person in charge of the enterprise shall organize and implement safety standardization and informatization, and build a dual system for safety risk classification and control and hidden danger investigation and management. Establish preventative mechanisms and cultivate a corporate safety culture.

4.2.4 Responsibilities

4.2.4.1 Enterprises should formulate the safety responsibilities of the Safety Committee, management departments, and each workshop.

4.2.4.2 Enterprises should formulate safety responsibilities for principal responsible persons, managers at all levels, and employees. The formulation of relevant safety responsibilities should be consistent with the organization's... The structure and job positions should be consistent. The safety responsibilities of the principal responsible person should be clearly defined, and they should be accountable for as stipulated in the "Law of the People's Republic of China on Work Safety". The safety responsibilities of the responsible persons should be refined; the safety responsibilities of employees should be clearly defined to ensure "one responsibility per position".

4.2.4.3 Enterprises should establish a safety production responsibility system assessment mechanism, and conduct annual assessments of the safety responsibilities of management departments at all levels, managers, and employees. The implementation of the responsibility system for safe production will be assessed regularly, and rewards and penalties will be imposed accordingly.

4.2.4.4 Leaders at all levels of the enterprise should formulate personal safety action plans to practice safety leadership through concrete actions. These personal safety action plans should be implemented until... This includes. organizing and convening safety production meetings, conducting safety activities at designated contact points, participating in work group safety activities, and being responsible for major risk control measures. Implement and carry out the work.

4.3.1 Content and Evaluation Methods

4.3.1.1 Enterprises should organize the formulation of risk assessment management system, and clarify the purpose, scope, methods and criteria of risk assessment.

4.3.1.2 The scope of enterprise risk assessment should include the following contents.

4.3.1.3 Enterprises should select scientific, effective, and feasible risk assessment methods according to their needs. Commonly used assessment methods include.

a) Job Hazard Analysis (JHA);

b) Safety Checklist Analysis (SCL);

c) Preliminary hazard analysis (PHA);

d) Hazard and Operability Analysis (HAZOP);

e) Failure Mode and Effects Analysis (FMEA);

f) Fault Tree Analysis (FTA);

g) Event Tree Analysis (ETA);

h) Job condition hazard analysis (LEC), etc.

4.3.1.4 Enterprises should formulate risk assessment criteria based on the following.

a) Relevant laws and regulations concerning work safety;

b) Design specifications and technical standards;

4.3.2 Risk Assessment

4.3.2.1 All employees of the enterprise should participate in the safety risk identification, assessment, and control work; the enterprise leader should participate in the factory-level assessment organization; the workshop-level assessment... The price organization should include the workshop manager.

4.3.2.2 Enterprises should select appropriate assessment methods based on risk assessment criteria and conduct assessments according to the prescribed frequency (at least once a year) and timing. Conduct hazard and adverse factor identification and risk assessment for business activities and equipment facilities to determine major safety risks, significant safety risks, and general safety risks. The risk level is divided into four levels. high risk, low risk, and low risk. A four-color safety risk distribution map with red, orange, yellow, and blue colors is drawn.

4.3.2.3 Production and storage facilities involving key regulated hazardous chemicals, key regulated hazardous chemical processes, and major hazard sources of hazardous chemicals. Risk identification and analysis should be conducted using hazard and operability analysis techniques, and should be performed every three years. Risks to other production and storage facilities should also be considered. Identification analysis, tailored to the varying complexity of the equipment, utilizes methods such as safety checklists, job hazard analysis, preliminary hazard analysis, and failure mode and effect analysis. Impact analysis, hazard and operability analysis, or a combination of these methods, should be conducted at least once every 5 years.

4.3.2.4 Enterprises shall conduct identification and daily management of major hazard sources in accordance with GB 18218 and related requirements.

4.3.2.5 Personnel involved in the identification and evaluation of major hazard sources of hazardous chemicals in enterprises should meet the following qualifications.

a) Personnel with chemical engineering expertise or production experience;

b) This includes professionals in production, technology, equipment (including electrical and instrumentation), safety, engineering, and occupational health.

c) There must be at least one registered safety engineer.

4.3.3 Risk Control

4.3.3.1 Enterprises should formulate plans for each identified safety risk based on its characteristics, addressing issues from organizational, technical, managerial, and emergency response perspectives. Control measures are implemented in a tiered manner according to different safety risk levels, and the responsibility for safety risk control is assigned to each enterprise, workshop, and work team. and positions.

4.3.3.2 Enterprises should establish a safety risk control list. The safety risk control list should specify the name of the safety risk and its location (location, department, etc.). (Location, link), possible accident types and consequences, main control measures, control departments and responsible persons.

4.3.3.3 Enterprises should formulate investigation plans based on the control measures in the safety risk control list and determine investigation responsibilities according to the principle of hierarchical control. The effectiveness of safety risk control measures should be assessed, including the personnel, inspection cycle, and inspection methods. If any measures are found to be ineffective, the ineffective risk control measures should be addressed. Measures should be taken to address potential safety hazards promptly.

4.3.3.4 Enterprises should establish a list of unacceptable safety risks (major risks), and promptly formulate and implement measures to eliminate unacceptable safety risks. Measures to reduce or control security risks, keeping them within an acceptable range.

4.3.3.5 Enterprises should publicize and train employees on the results of risk assessments and the control measures taken to ensure they are familiar with their job duties. Understand and implement the control measures for the hazards and harmful factors present in the work environment.

4.3.3.6 Enterprises should establish safety risk files, which include safety risk management systems, control lists, distribution maps, and change orders. The information should include details such as the situation and confirmation materials. Information regarding significant or higher-level safety risks should be filed separately, including the name and level of the safety risk. Location, control measures, and changes.

4.3.4 Risk Information Update

4.3.4.1 Enterprises should adhere to the principle of "treating all suspected risks as they arise, investigating all suspected risks, assessing all risks, and controlling all risks" when assigning production tasks daily. Simultaneously, safety risks for all tasks are assessed, and safety risk control measures are implemented. The principal responsible person signs a safety commitment daily at the factory. A notice was posted outside the main gate, open to public scrutiny.

4.3.4.2 Enterprises should regularly review or inspect the results of risk assessments and the effectiveness of risk control, and update risk information in a timely manner based on the review results.

4.3.4.3 Enterprises shall conduct risk assessments and update risk information promptly when the following situations occur.

a) New or amended laws, regulations, or other requirements;

b) Changes in operating conditions or processes;

c) Technological upgrading projects;

d) Gain new insights into events, accidents, or other information;

e) Major organizational restructuring occurs.

4.3.5 Change Management

4.3.5.1 Enterprises should establish a change management system, encompassing all changes in processes, equipment, and management within its scope. In accordance with the requirements of AQ/T 3034, ensure the safety of the entire process of change application, change risk assessment, change approval, change implementation, and change acceptance and closure. Control.

4.3.5.2 Enterprises can formulate grading standards for changes based on the timeframe and risk level of the change, and clarify the approval procedures corresponding to different levels of changes. Preface. Approvers at all levels should review the compliance of the change process with management systems, the accuracy of the security risk assessment of the change, and the effectiveness of the measures taken. Effectiveness.

4.3.5.3 After the change is completed, the enterprise shall promptly update the relevant safety production information and establish a change management file. The file shall at least include the change information. Application and approval form, safety risk assessment record, relevant documents for change implementation, change acceptance confirmation record, and other change-related documents. Materials, etc.

4.3.6 Construction of a dual prevention mechanism

4.3.6.1 Enterprises should establish a leadership structure for the construction of a dual prevention mechanism, with the principal person in charge serving as the group leader, and members including the person in charge of the relevant department and representatives from each department. (Workshop) supervisors should be identified, and their respective responsibilities should be clearly defined.

4.3.6.2 Enterprises should formulate an implementation plan for the construction of a dual prevention mechanism with the participation of all employees, clearly defining the work objectives, tasks, implementation steps, and schedule. And so on, ensuring that responsibilities are broken down layer by layer.

4.3.6.3 Enterprises should select all production and storage facilities involved in the production and storage of hazardous chemicals according to the principles of "independent function, appropriate size, and ease of management". Production equipment, storage facilities, or locations are considered as objects of safety risk analysis. Safety is assessed based on the production process sequence or equipment layout. The risk analysis object is decomposed into several relatively independent safety risk analysis units.

4.3.6.4 Enterprises should, based on the results of safety risk identification, select events that may cause serious consequences such as explosions, fires, poisoning, and suffocation as key risks. Security risk incidents under point-to-point management.

4.3.6.5 In response to safety risk events, enterprises should identify and assess existing management systems from aspects such as engineering technology, maintenance, personnel operation, and emergency measures. The effectiveness of control measures.

4.3.6.6 Enterprises should, in accordance with the relevant requirements of the safety responsibility system for major hazard sources, implement the management responsibilities of the three types of safety responsibility personnel, and continuously... Update control measures and investigation tasks, and promptly correct any deviations.

4.3.6.7 Enterprises should establish a dual prevention mechanism and an incentive and constraint system, clearly defining the standards, frequency, methods, etc., for performance evaluation and rewards/punishments, and conduct regular assessments. cash.

4.3.6.8 Enterprises should establish a tiered alert and warning mechanism to promptly address issues such as incomplete hazard identification tasks and overdue rectification of hazards. It will issue an alert and automatically generate a record.

4.4.1 Safety Production Rules and Regulations

4.4.1.1 Enterprises should, in accordance with national laws and regulations on work safety and in light of their own circumstances, establish and improve various safety protocols that are easy for employees to understand and implement. All production rules and regulations were established and distributed to relevant work positions to standardize the production operations of employees and minimize the impact on people, machines, and... Damage to objects and the environment.

4.4.1.3 Enterprises should incorporate the content of safety rules and regulations into their daily safety training and education.

4.4.1.4 Enterprises should promptly communicate the contents of safety rules and regulations to relevant parties.

4.4.2 Operating Procedures

4.4.2.1 Enterprises should organize relevant professional and technical personnel based on the characteristics of their production processes, technologies, and equipment, as well as the hazards of raw materials, auxiliary materials, and products. Based on the company's risk assessment results, experienced staff will develop corresponding control and prevention measures, which will serve as the basis for developing operating procedures. Based on the establishment of production operation positions, safety operating procedures should be developed for each position. These procedures may refer to, but are not limited to, the following processes and positions. The chlorine unit operating procedure shall be prepared in accordance with GB 11984.

a) Silicon block fabrication unit;

b) Silicon powder preparation unit;

c) Hydrogen production unit;

d) Chlorine gas and liquid chlorine unit;

e) Hydrogen chloride unit;

f) Trichlorosilane synthesis unit;

g) Silicon tetrachloride hydrogenation unit;

h) Chlorosilane purification unit;

i) Dichlorosilane unit;

j) Trichlorosilane reduction unit;

k) Exhaust gas recovery and separation unit;

l) Silicon core fabrication and post-processing unit;

m) Public utility units such as air separation nitrogen production, oxygen production, argon production, steam, refrigeration, circulating water and fire-fighting water;

4.4.3 Review and Revision

4.4.3.1 Enterprises should clearly define the timing and frequency for reviewing and revising safety production rules and regulations and operating procedures, and conduct regular reviews and revisions to ensure... Ensure its effectiveness and applicability. The relevant rules, regulations, or operating procedures should be reviewed and revised promptly in the following situations.

a) When national laws, regulations, procedures, or standards on work safety are repealed, revised, or newly promulgated;

b) When there are significant changes in the enterprise's ownership, structure, or size;

c) When production facilities are newly built, expanded, or renovated;

d) When the process, technical route, and equipment change;

e) When the superior safety supervision department puts forward relevant rectification opinions;

f) When issues involving regulations and systems are discovered during safety inspections and risk assessments;

g) When analyzing the causes of major and recurring accidents and identifying systemic factors;

h) Other related matters.

4.4.3.2 Enterprises should organize relevant management personnel, technical personnel, operators, and union representatives to participate in the study of safety production rules and regulations and operating procedures. Review and revise, and indicate the effective date.

4.4.3.3 The revised operating procedures of the enterprise shall be approved according to the procedures, and after they are issued and take effect, the effective documents shall be distributed to the positions.

4.4.3.4 Enterprises should confirm the suitability and effectiveness of their operating procedures annually; safety production rules and regulations and operating procedures should be reviewed at least every 3 years. And revised once.

4.4.3.5 Enterprises should organize the preparation of new operating procedures before putting new technologies, new materials, new processes, and new equipment and facilities into production or use to ensure their... applicability.

4.4.3.6 Enterprises shall ensure that they use the latest and most effective versions of safety production regulations and operating procedures.

4.5.1 Basic Requirements

4.5.1.1 Enterprises shall formulate training and education management systems in accordance with relevant national laws, regulations, and industry requirements. Enterprises shall strictly implement safety... The training and education system, based on national, local, and industry regulations and job requirements, sets appropriate safety training and education goals and requirements. According to... Based on the constantly changing actual situation and training objectives, regularly identify safety training and education needs, and formulate and implement safety training and education plans.

4.5.1.2 Enterprises should conduct safety production training for all employees to ensure that they possess the necessary safety production knowledge and are familiar with relevant safety production regulations. Rules and regulations, safe operating procedures, mastering the safe operating skills for this position, understanding emergency response measures, and being aware of one's own responsibilities in safe production. Rights and obligations in all aspects.

4.5.1.3 Enterprises shall provide the personnel, funds and facilities required for training and education.

4.5.1.4 Enterprises should formulate an annual training work plan based on their basic safety production situation and actual training needs, and conduct annual training work... The plan should be implemented only after being signed by the principal person in charge of the production and operation unit.

4.5.1.5 Production and operation units shall provide necessary services to dispatched workers, interns, and employees of contractors and suppliers engaged in service and operational activities. Employees should receive necessary safety production education and training.

4.5.1.6 Employees who have not passed safety production education and training shall not be allowed to work.

4.5.2 Management Personnel Training and Education

4.5.2.1 The principal responsible person and safety production management personnel of the enterprise shall receive specialized safety training and education, and be subject to safety assessment by the emergency management department. Candidates must pass the production knowledge and management skills assessment and obtain a safety certificate before being appointed to their positions, and must participate in annual retraining as required.

4.5.2.2 Safety training for other management personnel of the enterprise, including heads of management departments and heads of grassroots units, and professional engineering and technical personnel. Training is organized by the relevant departments of the enterprise, and candidates can only be appointed after passing the assessment. They should also participate in annual retraining as required.

4.5.2.3 The annual retraining content for safety management personnel should include at least the following.

a) New laws, regulations, rules, ordinances, and standards related to workplace safety;

b) New technologies, processes, equipment, and materials related to safe production;

c) New concepts, methods, and advanced experiences in safety production management;

d) Analysis of typical accident cases.

4.5.3 Training and education for practitioners

4.5.3.1 Enterprises shall, in accordance with relevant regulations, provide safety training and education to new employees at the enterprise, workshop (section), and team levels, and require them to pass the assessment. Only after passing this requirement can a new employee be allowed to start work. The safety training and education time for new employees should not be less than the hours stipulated by the national or local government.

4.5.3.2 Special operation personnel and special equipment operators shall participate in safety training and education in accordance with relevant regulations and obtain special operation and special equipment certifications. Only those with a valid operator's certificate are allowed to work on the job; special operation and special equipment operator's certificates must be renewed periodically; enterprises should establish a system for managing special operation personnel and special equipment. Personnel management ledger.

4.5.3.3 Enterprises should complete personnel allocation, training, and special operation personnel certification within 6 months before the commencement of new projects.

4.5.3.4 The annual retraining content for employees on workplace safety should include at least the following.

a) New laws, regulations, rules, ordinances, and standards related to workplace safety;

b) Safety production knowledge. Safety production rules and regulations, job operation procedures, and work procedures formulated or revised by the employer of the employee. Emergency rescue measures, hazard identification and safety precautions, advanced experience and best practices in safety production management, etc.

c) Safety production technology. new technologies, processes, equipment, and materials used in operations, and their safety requirements, etc.

d) Analysis of typical accident cases.

4.5.4 Training and education for other personnel

4.5.4.1 Employees who have been transferred to other positions or have been away from their posts for more than six months (including six months) should receive safety training and education at the workshop (section) and work team levels. Only those who pass the assessment are allowed to start working.

4.5.4.2 Enterprises should provide safety training and education to contractors, suppliers, and other relevant parties involved in construction work entering the production area, and conduct temporary meetings. Safety instructions were given to the guests.

4.5.4.3 Before the contractor enters the work site, the unit where the work site is located shall conduct pre-entry safety training for the construction unit's personnel. Conduct safety training and education, and keep records of safety training and education.

4.5.5 Routine safety training and education

4.5.5.1 Enterprise management departments and work teams shall carry out safety activities and basic skills training in accordance with the monthly safety activity plan.

4.5.5.2 Team safety activities shall be held no less than twice a month, with each activity lasting no less than one class hour. Each team safety activity should have a person in charge and... The plan should be well-planned, substantive, and documented. Enterprise leaders should participate in at least one team safety activity per month, along with grassroots unit leaders and their managers. Each employee should participate in at least two team safety activities per month.

4.5.5.3 The management department shall conduct safety activities at least once a month, and each activity shall last at least 2 hours.

4.5.5.4 The enterprise's safety production management department or full-time safety production management personnel shall check the safety activity records at least once a month. And sign it.

4.6.4.4 Enterprises shall strictly control all process parameters during the normal operation of the equipment to at least meet the requirements for operator safety and equipment safety. The equipment is operating safely.

4.6.5 Electrical Safety

4.6.5.1 Enterprises should establish relevant electrical safety management systems, including work permit management, work supervision management, and work completion management. Content related to power supply management, etc.

4.6.5.2 Inspections shall be conducted in accordance with the following provisions.

a) Inspections are generally conducted by two people, but the chief technician, shift leader, and professional engineer are permitted to conduct equipment inspections alone.

b) When conducting inspections, one should carry commonly used tools, wear insulated shoes and gloves, a flashlight, and a notebook, etc., for use.

c) When a high-voltage equipment grounds, personnel should not approach within 4 meters of the fault point indoors, and should not approach within 8 meters outdoors. Personnel within the area should wear insulated shoes; insulated gloves should be worn when touching the equipment casing and frame.

4.6.5.3 Switching operations shall be carried out according to the orders of the power dispatcher or supervisor. The order shall be repeated to confirm its accuracy before execution, and the supervisor shall be a technical or business expert. Personnel with relevant experience should be assigned to the task. The operator responsible for switching operations should fill out an operation ticket; each operation ticket should only contain information on one operation task.

4.6.5.4 The following requirements shall be met when working with electricity.

a) Live work should not be performed on equipment with voltage levels of 6 kV to 10 kV and above, but low-voltage live work is permissible. It should be done by two people, one working and the other supervising.

b) When working with live parts, cuffs should be tightened, and safe, insulated tools should be used. Do not touch live parts directly with your hands, and do not touch them with your body. Simultaneous contact with two phases or phase and ground.

c) Personnel standing on the ground should not directly pass objects to those working with live electrical equipment.

4.6.5.5 Handling of Electrical Accidents.

a) It should be done quickly...