GB 17750-2012 English PDFUS$329.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB 17750-2012: Safety code for painting -- Safety for dipping process Status: Valid GB 17750: Historical versions
Basic dataStandard ID: GB 17750-2012 (GB17750-2012)Description (Translated English): Safety code for painting -- Safety for dipping process Sector / Industry: National Standard Classification of Chinese Standard: C72 Classification of International Standard: 13.100 Word Count Estimation: 14,11 Older Standard (superseded by this standard): GB 17750-1999 Quoted Standard: GB 150.1; GB 150.2; GB 150.3; GB 150.4; GB 6514-2008; GB 7691; GB/T 14441; GB 14443-2007; GB 14444; GB 16297; GB 50016; GB 50058 Regulation (derived from): National Standards Bulletin 2012 No. 17 Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China Summary: This Chinese standard specifies the paint job of dipping dipping process areas and their workplaces, dipping equipment, electrical equipment, fire and explosion, ventilation, paint storage, use and transportation, fire protection, operation, maintenance a GB 17750-2012: Safety code for painting -- Safety for dipping process---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.Safety code for painting.Safety for dipping process ICS 13.100 C72 National Standards of People's Republic of China Replacing GB 17750-1999 Safety code for painting Dipping process safety Issued on. 2012-07-31 2013-03-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released Table of ContentsIntroduction Ⅲ 1 Scope 1 2 Normative references 1 3 Terms and definitions 4 dipping zone and workplace 2 5 dip coating apparatus 2 Fire-proof electrical equipment 6 4 Ventilation 7 5 8 paint storage, use and transport 5 9 Fire 6 10 operation, maintenance and training 7 Appendix A (normative) dipping job Explosive Area Classification 8ForewordAll technical contents of this standard is mandatory. "Safety code for painting" series of national standards has released a total of 12. --- GB 6514-2008 "Safety code for painting painting process safety, ventilation and air purification"; --- GB 7691-2003 "Safety code for painting Safety Management Law"; --- GB 7692-2012 "Safety code for painting before painting Process Safety, ventilation and purification"; --- GB 12367-2006 "painting - Safety for electrostatic spray painting process"; --- GB 12942-2006 "painting - Safety for working in confined spaces safety technical requirements"; --- GB/T 14441-2008 "Safety code for painting the term"; --- GB 14443-2007 "Safety code for painting paint drying oven safety regulations"; --- GB 14444-2006 "Safety code for painting spray booth safety regulations"; --- GB 14773-2007 "painting - Safety for electrostatic spray guns and associated apparatus and technical conditions"; --- GB 15607-2008 "painting - Safety for electrostatic powder spraying process security"; --- GB 20101-2006 "Safety code for painting organic waste gas purification device safety regulations." This standard is one of "Safety code for painting" series of standards. This standard was drafted in accordance with GB/T 1.1-2009 given rules. This standard replaces GB 17750-1999 "Safety code for painting dipping process." This standard compared with GB 17750-1999, the main technical changes are as follows. --- Add, update national standard reference; --- In the "terms and definitions" supplement increases the "vacuum dipping 3.3"; --- Supplementary adjustments in the content, as in "5 dipping equipment" chapter, an increase of "5.4 vacuum dipping and drying equipment," "5.5 Magnet wire impregnation equipment "content; --- In a paragraph of text for the integration, such as the content of the original standard similar adjustment 5.1.2 to 6.5, was adjusted to 9.2 to 5.3, the 5.2 and 5.4 for the merger 5.1.2; --- Supplementary 5.3.1 adds that "the lower part of the conveyor should be set up safety device to prevent contamination of the lubricating fluid dripping bath and prevent catenary And track friction sparks caused the fire "; --- Original standard "6.1 General Requirements" in 6.1.1 and 6.1.2 modify merged into 6.1, 6.1.3 and 6.1.4 will revise together And 6.2, and rearrange; --- Delete the original standard "11 Training" section, modify the original standard "10 Operation and Maintenance" chapter "10 operation, maintenance and Training. " The standard reference to American National Standard NFPA34 "Flammable and combustible material spraying operations Standards" (2007 edition). This standard was proposed by the State Administration of Work Safety. This standard by the National Standardization Technical Committee produced safety coating operation Technical Committee (SAC/TC288/SC6) centralized. This standard was drafted. First Machinery Industry Design and Research Institute, Jiangsu Academy of Safety Science, Zhejiang Huali Painting Equipment Co., The company, Zhejiang Mingquan Industrial Coating Co., Ltd., Zhejiang Tong fish developed making lacquer Limited, Zhejiang Zhiqiang Paint Co., Ltd., Yangzhou Qionghua Coating Engineering Equipment Co., Ltd., Wuxi tin Chau Wire Co., Ltd., Chongqing Yangtze River Painting Equipment Co., Ltd., Dongguan Zhuo Feng electromechanical equipment Limited. The main drafters of this standard. Xu Hongzhou, Hu Yiming, Lv Jianli, Huang Liming, Mao Lian, Wu straight, Xu Jin law, Dan Antao, Zhouguodong, Kim Chan Fang, New Fang Liang, Lu Zhiqiang. This standard replaces the standards previously issued as follows. --- GB 17750-1999. Safety code for painting Dipping process safety1 ScopeThis standard specifies the fire and explosion in dip coating operations process dipping zone and workplaces, dip coating equipment, electrical equipment, ventilation, Paint storage, use and transportation, fire protection, operation, maintenance and training requirements. This standard applies to the use of flammable or combustible dipping process and equipment design, manufacture, installation, acceptance and use of liquid coatings. Aqueous Ventilation and roll dip coating, curtain coating, curtain coating and other processes can also refer to use.2 Normative referencesThe following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document. GB 150 (all parts) pressure vessel GB 6514-2008 Safety code for painting painting process safety, ventilation and air purification GB 7691 painting - Safety for Safety Management Principles GB/T 14441 painting - Safety for term GB 14443-2007 Safety code for painting paint drying oven safety regulations GB 14444 Safety code for painting spray booth safety regulations GB 16297 Air Pollutant Emission Standards GB 50016 architectural design code for fire protection GB 50058 Explosion and fire hazard electrical installation design specifications3 Terms and DefinitionsGB/T 14441 and defined by the following terms and definitions apply to this document. 3.1 Dip dipping The workpiece is immersed in the paint, and the process for removing the excess paint. 3.2 Dip tank diptank Containing coatings can be used to dip the workpiece and have the security features of the tank. 3.3 Vacuum dipping vacuumdipping Workpiece placed in a sealed, pressure, and vacuum vessel, and pressurized fluid injection dip, thoroughly soak process for the workpiece. 3.4 Dipping zone dippingarea Implementation of lacquered zones dipping job. 3.5 Dip coating vapor source dippingvaporsource And Chang Lu Lek painter dipping bit of liquid paint and dip the workpiece in 0.3m range, can still measure the liquid paint organic solvent vapor concentrations in excess of Its lower explosive limit concentration of 25% places.4 dipping zone and workplaces4.1 dipping zone range It exists dipping volatile gas source and an organic solvent volatilized gas source region. Dipping zone should generally include the following ranges. a) Internal dipping zone and exhaust system connected to the internal; b) the inner space enclosed on dip lines; c) other jobs determined by the relevant regional dip-coating process is located. 4.2 dip workplace Fire hazard classification 4.2.1 dip workplace performed in Table 1 GB 6514-2008. 4.2.2 Other methods should be used to dip the workplace fire prevention space, firewalls, fire partitions, or recognized by the safety zone and other workers to dip Bit, materials are separated, and shall comply with the relevant provisions of GB 50016. 4.2.3 dipping below the workplace should not be located in the low-lying areas around the site. 4.2.4 entrance channel and dipping the workplace should be smooth and should comply with the relevant provisions of GB 50016. Health and noise 4.2.5 dipping workplaces shall comply with the relevant provisions of GB 6514-2008 5.1.2.5 dipping equipment5.1 dip tank 5.1.1 tank Dip tank by steel, reinforced concrete or other non-burning body material, and should have strong support. Tank volume exceeding 2m3 Or liquid surface area of more than 1m2, the fire resistance of structural materials shall not be less than 1h. 5.1.2 notch Notch dip tank should be higher than the seat surface at least 150mm, while the level of the bath from the slot should be not less than 150mm. When the dip tank notch Above the seat surface is less than 500mm, the safety railing around it should be located. 5.1.3 overflow pipe 5.1.3.1 dip tank volume of more than 0.6m3 or bath surface area of more than 1m2, the tank should be set to vent excess paint overflow pipe. 5.1.3.2 overflow pipe diameter should be based on the bath surface area, length of the tube, the inclination may be. Processing capacity of the overflow pipe should be able to meet the extra groove Discharge liquid. Overflow pipe diameter should not be less than 75mm. 5.1.3.3 overflow pipe connecting the discharge pipe should be easy to repair and clean-up. 5.1.3.4 overflow pipe installation location should ensure that the liquid level not less than 150mm from the notch on the tank. 5.1.4 groove bottom discharge device body 5.1.4.1 dip tank volume of more than 2m3 should be set at the bottom of the discharge device and a transfer tank, when a fire, should be able to quickly and safely to the bath Transferred to the transfer vessel. 5.1.4.2 bath discharging operation may be manual or may be automated. For manual operation, the operating station should be located in convenient, and safe position. When not rely on gravity flow discharge shall be set to automatically transfer pump. For the cover with automatic shut down dip tank, not to set the bottom row Place device. 5.1.4.3 bottom discharge tube shall be capable of emptying the bath within 5min. Diameter to be less than the size shown in Table 1. Table 1, the minimum size of the discharge pipe Dip tank volume/L discharge pipe diameter/mm 1900 \u003cV≤2850 75 2850 \u003cV≤3800 100 3800 \u003cV≤9500 125 9500 \u003cV≤15000 150 V > 15000 200 5.1.5 Bath temperature control 5.1.5.1 When the bath when needed indirect heat, dip tank should control apparatus according to process requirements set temperature to prevent overheating of the bath, steam plot Poly and possible spontaneous combustion. 5.1.5.2 dip bath temperature and the surface temperature should not exceed the boiling temperature of 55 ℃ or any one. 5.1.5.3 thermostat should be able to control the high temperature limit. When the temperature exceeds the set temperature, conveyor chains, the heater should stop working. 5.1.5.4 When the bath liquid level is above or below the safety level, the heating system should be shut down automatically. 5.2 Transfer groove 5.2.1 Transfer volume dip tank should be greater than the volume of the groove, and shall dip tank communicating. Dip tank paint transfer should be discharged does not work Shift groove. 5.2.2 Transfer tank should be equipped with a transfer pump to transfer the paint tank and then returned dip tank. 5.2.3 transfer groove should be located in the ground outside the scope of the workshop, semi basement construction and shall comply with the relevant provisions of GB 50016. 5.3 Conveyor System 5.3.1 should be set lower portion of the conveyor chain safety device to prevent contamination of the lubricating fluid dripping bath, catenary and to prevent sparks generated by friction with the track And cause a fire. 5.3.2 When a fire occurs, should immediately stop conveyor operation. 5.3.3 When the organic solvent vapor concentration dip area more than 25% of its lower explosive limit, the conveyor should stop running. 5.4 vacuum dipping and drying equipment 5.4.1 Vacuum Impregnation drying equipment design, manufacture, inspection and acceptance should meet the GB 150 (all parts) of the relevant provisions. 5.4.2 vacuum dipping and drying equipment should be fitted with explosion-proof equipment -0.1MPa safety (safety film), in the vacuum does not exceed the design pressure before being Often it works. 5.4.3 Vacuum impregnation vacuum drying equipment to deal with their work, leakage rate, work pressure and other tests carried out in the following cases. a) identification of new products when; Year under b) normally once; c) shut down more than three months, when production resumed. 5.4.4 Vacuum Impregnation drying equipment in use, the device should read the relevant instructions, strictly follow the instructions to turn on the device (has Open No. valves, fans, heaters, pumps, transmission and paint pumps, etc.), in the relevant instrument instruction properly, can be put into production. 5.4.5 At the end of each shift, to open the bottom valve vacuum dipping and drying equipment, paint mixture was washed vent valve is closed. 5.4.6 Vacuum Impregnation drying equipment inside the dipping tank, paint filters, dipping planes to be cleaned regularly. 5.4.7 regularly check whether the vacuum impregnation drying equipment hot air inside the pipeline has accumulated coke, once found should be cleared up. 5.4.8 vacuum dipping and drying equipment to comply with the relevant provisions of GB 14444 and GB 14443-2007's. 5.5 Electromagnetic Wire impregnation equipment 5.5.1 magnet wire dip tank should be composed of steel, the support should be firm and have the strength to withstand the tension. The bottom should be provided with a discharge port. Should dip below the groove 5.5.2 magnet wire a waste paint storage tank, to prevent the insulating paint dip tank in the production process on a drip device And ground pollution. 5.5.3 magnet wire should dip tank overflow pipe, overflow pipe should be seamless steel cone, and can be inserted into the groove at the bottom of the discharge opening dip, The overflow pipe from the top notch of not less than 100mm. 5.5.4 Bath (varnish or paint) should be used to steam heating or other indirect heating, prohibited the use of an open flame or electric heating tube directly heating. Safe operation and maintenance 5.5.5 magnet wire impregnation equipment shall comply with the requirements of GB 14443-2007 in Chapter 9. 5.5.6 magnet wire impregnation equipment operation, should be manned. Not for maintenance, lubrication equipment operating in the state. Fault and fire hazard 5.5.7 magnet wire impregnation equipment, you should be able to automatically turn off the power.6 fire and explosion electrical equipment6.1 determining explosion hazardous areas shall comply with 50058 in explosive gas atmospheres hazardous area requirements GB , see Appendix A. Electrical equipment and wiring shall comply with the relevant provisions of GB 50058. 6.2 outer surface temperature exceeds ignition point dip coating equipment can not be placed in the dipping zone or explosive gas atmospheres hazardous zone 2 areas. Sparks or hot metal particles produced equipment should be fully enclosed or explosion-proof in order to set dip zone or explosive gas ring 2 throughout the region. 6.3 Electrical equipment and wiring is located near the open dip tank, it should meet the requirements of 6.3.1,6.3.2. See Figure A.1 and A.2. 6.3.1 Electrical equipment and wiring located in the dip from the volatile gas source and disposed of 1.5m from the volatile gas source dip in the horizontal direction Within 7.6m pool, pit or below ground level channel shall meet the requirements for explosive gas atmospheres Zone 1 hazardous areas. If the pond pit Or channel extending to dip volatile gas source other than 7.6m should be placed volatile source gas baffle or extending the entire length of the portion are designated as Zone 1. Internal wiring and equipment used in electrical equipment 6.3.2 6.3.1 Zone 1 is located in the periphery as well as the extension of the 3m range in the horizontal direction Extension 6m above the ground and in space 1m posed should meet the requirements for explosive gas atmospheres Zone 2 hazardous areas. When the volatile gas dip Source surface area of not more than 0.5m2, dip tank capacity not exceeding 20L and operating or not operating during a volatile gas concentration does not exceed explosion The lower limit concentration of 25%, the electrical installation may not follow this policy. 6.4 an operating area closed enclosure dip tank shall comply with the requirements 6.4.1,6.4.2. See Figure A.3. 6.4.1 dip tank inside the enclosure should be classified as explosive gas atmospheres hazardous area l region, in the area of space for electrical equipment and wiring should conform Requirements for explosive gas atmospheres Zone 1 hazardous areas. 6.4.2 against housing opening and extending to the surface of 3m space shall be classified as explosive gas atmospheres hazardous area zone 2, in the space of power Gas equipment and wiring shall comply with the requirements for explosive gas atmospheres Zone 2 hazardous areas. 6.5 In the external coating paint between the library and from all directions within 1.5m of any paint or solvent containing the open containers and equipment and Space extending to the ground shall be classified as explosive gas atmospheres hazardous area Zone 1, Zone 1 3m outside the scope should be classified as explosive gas atmospheres 2 Area, in this area of the wiring and equipment shall meet the requirements of the region. See Figure A.4. 6.6 enclosure dipping apparatus should be explosion-proof lighting fixtures or separators lighting. Glass boxes or observation to be used shall be explosion-proof Glass, boxes should be sealed to restrict vapor to enter. Lighting maintenance carried out outside the enclosure. 6.7 In order to prevent the accumulation of static electricity sparks, all staff should wear insulated shoes or friction with the ground sparking shoes, the Some electrically conductive objects, including metal should be well grounded process equipment, containers, exhaust pipe, pipe coating delivery system, grounding resistance Shall comply with the provisions of 8.4.6.7 Ventilation7.1 dip workplace air supply, exhaust system shall comply with the requirements of this chapter and the relevant provisions of GB 6514-2008. 7.2 dipping zone should be mechanically ventilated, the concentration of the organic solvent vapors from the volatile region than 1.5m gas supply does not exceed the explosion The lower limit concentration of 25%. Volatile organic solvent gas concentration in the ventilation system shall not exceed 25% of the lower explosive limit concentration. 7.2.1 dipping station should have a well-designed housing, with ventilation to limit vapor within the housing. 7.2.2 When the ventilation system fails, the control system should automatically stop dipping work, concurrent sound and light alarm. 7.2.3 Throughout the dipping process, the ventilation system should be kept running, before starting the conveyor system, the exhaust system ahead run 10min, After dipping operation, the exhaust system should continue to run 10min. In automatic dipping station unattended operation, the control system should be confirmed row The case of wind turbine working properly, dipping device to start. 7.3 dipping zone should add a sufficient amount of fresh air to compensate for the discharge of air from the dip area. Location supplementary air inlet should guarantee Discharged from the dip coating process to no longer air is circulated back. 7.4 exhaust pipe should be the most convenient route to reach the discharge port, but not across the firewall. Air vents exhaus......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB 17750-2012_English be delivered?Answer: Upon your order, we will start to translate GB 17750-2012_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.Question 2: Can I share the purchased PDF of GB 17750-2012_English with my colleagues?Answer: Yes. The purchased PDF of GB 17750-2012_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.Question 3: Does the price include tax/VAT?Answer: Yes. 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