Foreword
This document is developed in accordance with the rules given in GB/T 1.1-2020 Directives for standardization - Part 1: Rules for the structure and drafting of standardizing documents.
This document replaces GB 6514-2008 Safety code for painting - Safety, ventilation and air clean-up for painting process and GB 7692-2012 Safety code for painting - Safety, ventilation and air clean-up for pretreatment process of painting. In addition to structural adjustments and editorial changes, the following main technical changes have been made with respect to GB 6514-2008 and GB 7692-2012:
a) The terms "individual ventilation" (see 3.7 hereof) and "recirculating air" (see 3.8 hereof) and their definitions have been added;
b) The parameters including fire hazard classification for location of painting operations, permissible concentration of toxic substance in the air at location of painting operations, limit of temperature difference between workplace and outdoor, air temperature of winter heating at workplace, temperature in auxiliary room in winter, level of sanitation characteristics at location of painting operations, and health limits of noise level in workplace have been deleted (see Tables 1 to 7 of GB 6514-2008);
c) The contents of drying and curing have been deleted (see 5.8 of GB 6514-2008);
d) The parameters including wind speed for liquid level control of various pretreatment tanks, cross-sectional wind speed determined by the volume of shot blasting chamber, and discharge determined by nozzle diameter have been deleted (see Tables 1, 2 and 3 of GB 7692-2012);
e) The requirements for the safety of mixed gas spraying process (see 6.4 hereof) and ventilation of paint blending room (see 7.3.1 hereof) have been added.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. The issuing body of this document shall not be held responsible for identifying any or all such patent rights.
This document was proposed by and is under the jurisdiction of the Ministry of Emergency Management of the People's Republic of China.
The previous editions of this document are as follows:
——It was firstly issued as GB 6514-1986 in 1986;
——In the first revision in 1995, the contents of GB 6515-1986 Safety code for painting - Ventilation and air clean-up for painting process were incorporated;
——It was revised for the second time in 2008;
——This is the third revision, incorporating the contents of GB 7692-2012 Safety code for painting - Safety, ventilation and air clean-up for pretreatment process of painting (the previous editions of GB 7692-2012 are as follows: GB 7692-1987, and GB 7692-1999, which incorporated the contents of GB 7693-1987 Safety code for painting - Ventilation and air clean-up for surface preparation techniques before painting).
Safety code of practice for coating -
Safety and ventilation for coating process
1 Scope
This document specifies the safety technical requirements for pretreatment process of painting, coating process and ventilation in coating operations.
It is applicable to the design, installation and use of pretreatment process of painting, coating process and ventilation system in coating operations.
It is not applicable to outdoor coating of large components such as bridges, buildings, large storage tanks and ships.
2 Normative references
The following documents contain provisions which, through reference in this text, constitute provisions of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB 2494 Bonded abrasive products - Safety requirements
GB 2893 Safety colours
GB 2894 Safety signs and guideline for the use
GB 4053.3 Safety requirements for fixed steel ladders and platform - Part 3: Industrial guardrails and steel platform
GB 6220 Respiratory protection - Long tube breathing apparatus
GB 7691 Safety code for painting - Safety management general rule
GB 8978 Integrated wastewater discharge standard
GB 12367 Safety code for painting - Safety for electrostatic spray painting process
GB 14443 Safety code for painting - Safety rules for paint drying oven
GB 14444 Safety code for painting - Safety rules for spraying booth
GB 14773 Safety code for painting - Safety specification for electrostatic spray guns and associated apparatus
GB 15607 Safety code of practice for coating - Safety for electrostatic powder coating process
GB 16297 Integrated emission standard of air pollutants
GB 17750 Safety code for painting - Safety for dipping process
GB 20101 Safety code for painting - Safety rules for purification equipment of exhaust organic gas
GB 30077 Requirements on emergency rescue materials equipment for hazardous chemical enterprises
GB 30871 Safety specifications of special work in hazardous chemicals enterprises
GB 39800.1 Specification for the provision of personal protective equipment - Part 1: General requirement
GB 50016 Code for fire protection design of buildings
GB 50057 Code for design protection of structures against lightning
GB 50058 Code for design of electrical installations in explosive atmospheres
GB 50140 Code for design of extinguisher distribution in buildings
GBZ 2.1 Occupational exposure limits for hazardous agents in the workplace - Part 1: Chemical hazardous agents
GBZ 2.2 Occupational exposure limits for hazardous agents in the workplace - Part 2: Physical agents
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
painting process
whole process of pretreatment process of painting and coating process in coating operations
3.2
pretreatment process of painting
whole process before coating construction in coating operations
Note: This process includes derusting, oil removal, chemical pretreatment, dust removal and depainting of workpieces. It can be divided into mechanical pretreatment (such as shot peening, shot blasting and sanding by pneumatic tool), chemical pretreatment (such as degreasing, pickling, neutralization, surface conditioning, phosphorization, passivation, anodic oxidation, silanization, and cleaning) and organic solvent treatment.
3.3
coating process
whole process of paint coating in coating operations
Note: This process includes paint blending, workpiece conveying, coating by various methods, polishing, and puttying.
…
4 General requirements
4.1 Operation safety
4.1.1 The pretreatment and coating operations shall be carried out in corresponding places or designated areas.
4.1.2 Open flame heating equipment shall not be used in these places. When heating flammable or combustible substances such as paint, heat exchanger shall be used for indirect heating.
4.1.3 A safety sign "No Fireworks" shall be set up at the entrance of the places of pretreatment operation and places of painting operations where inflammable and explosive substances are used.
Foreword II
1 Scope
2 Normative references
3 Terms and definitions
4 General requirements
4.1 Operation safety
4.2 Safety of electrical equipment
4.3 Safety of special operations
4.4 Ventilation requirements
5 Safety of pretreatment process of painting
5.1 General requirements
5.2 Safety of oil removal with organic solvent and gas phase
5.3 Safety of depainting
5.4 Safety of mechanical pretreatment
5.5 Safety of chemical pretreatment
5.6 Safety of steel pretreatment production line
6 Safety of coating process
6.1 General requirements
6.2 Storage and blending of paints
6.3 Conveying and treatment of paints
6.4 Safety of air, mixed gas and airless spraying
6.5 Safety of electrostatic spraying
6.6 Safety of electrophoretic painting
6.7 Safety of dipping, flow coating and roller coating
6.8 Safety of manual painting and manual puttying
7 Ventilation safety
7.1 Ventilation system
7.2 Ventilation for pretreatment process of painting
7.3 Ventilation for coating process
Annex A (Informative) Upper and lower explosive limits of common organic solvents for coating
