1 Scope
This standard specifies general safety technical requirements of every kind of spraying booth in painting process.
This standard is applicable to design, manufacture, installation, inspection, application, maintenance and supervision and administration of the flammable or combustible paint spraying booth. It also may be a reference to the spraying booth with water-based paint.
2 Normative References
The following normative documents contain provisions which, through reference in this standard, constitute provisions of this standard. For dated reference, subsequent amendments to, or revisions of, any of these publications do not apply. However, all parties coming to an agreement according to this standard are encouraged to study whether the latest editions of these documents are applicable. For undated references, the latest edition of the normative document is applicable.
GB4385 Technical Requirements for Antistatic Footwear and Conductive Footwear (GB4385-1995, neq ISO 8782-1:1989)
GB6514-1995 Safety Code for Painting-Safety, Ventilation and Air Clean-up for Painting Process
GB7231 Basic Identification Colors and Code Indications and Safety Sign for Industrial Pipelines(GB7231-1987, neq ISO508-1:1966)
GB7691-2003 Safety Code for Painting-Safety Management General Rule
GB8978-1996 Integrated Wastewater Discharge Standard
GB12367 Safety Code for Painting-Safety for Electrostatic Spray Painting Process
GB14443 Safety Code for Painting-Safety Rules for Paint Drying Oven
GB16297 Integrated Emission Standards of Air Pollutants
GB17888.1 Safety of Machinery-Permanent Means of Access to Machinery-Part 1: Choice of a Fixed Means of Access between Two Levels (GB17888.1-1999, eqv ISO/DIS14122-1:1996)
GB17888.2 Safety of Machinery-Permanent Means of Access to Machinery-Part 2: Working Platforms and Walkways (GB17888.2-1999, eqv ISO/DIS14122-2:1996)
GB17888.3 Safety of Machinery-Permanent Means of Access to Machinery-Part 3: Stairs Stepladders and Guard-Rails (GB17888.3-1999, eqv ISO/DIS14122-3:1996)
GB17888.4 Safety of Machinery-Permanent Means of Access to Machinery-Part 4: Fixed Ladders (GB17888.4-1999, eqv ISO/DIS14122-4:1996)
GB50058 Electrical Installations Design Code for Explosive Atmospheres and Fire Hazard
GBJ87 Specifications for the Design of Noise Control System in Industrial Enterprises
GBJ14 Code for Design of Extinguisher Distribution in Buildings
3 Terms and Definitions
For the purposes of this document, the terms and definitions in GB/T 14441-1993 together with the following additions apply.
3.1 Spray booth
It refers to an entirely closed or semi-closed room or building envelope with good mechanical ventilation and lighting equipment and dedicated for spraying paints. The air flow composition in the room is able to prevent painting fog, and solvent vapour dissipating outward and lead them to the air exhaust system intensively and safely.
3.2 Spray room
It refers to a totally closed construction with forced draught and dedicated for painting operation. The whole spray room is a part of painting area.
The spray room is different from the spraying booth.
3.3 Painting area
It refers to the area where due to the painting operation, a hazardous volumes of flammable vapor, painting fog, dust exist and flammable survivor is accumulated.
3.4 Flash-off area
It refers to an open or closed area after the painting operation where the paint film is uniform and releases the solvent vapour.
3.5 Control speed of flow
It refers to the average speed of flow of the section vertical to the main flow in the height of the breathing zone of the operating personnel.
3.6 Irregular flow
It refers to all flow affecting control speed of flow.
3.7 Overspray
It refers to the phenomenon that the painting fog fails to spray on the objects during the spraying.
3.8 Spray booth, dry type
It refers to a spraying booth which shall use such mechanism as impact, fiber filtration or electrostatic interaction to remove the overspray object in the air exhaust flow.
3.9 Spray booth, wet type
It refers to a spraying booth which shall use water or other liquid medium to remove the overspray object in the air exhaust flow.
Foreword I
1 Scope
2Contents
Foreword I
1 Scope
2 Normative References
3 Terms and Definitions
4 Painting Area Range
5 Basic Requirements
6 Electrical Apparatus and Ignition Source
7 Structure and Material
8 Ventilation
9 Spraying Booth Used for Painting and Baking
10 Flash-off Area
11 Noise Prevention
12 Electrostatic Prevention
13 Operational Safety and Sanitation
14 Maintenance
15 Safety Supervision
Appendix A (Normative) Electrical Explosion Hazard Zones of Spraying Booth, Open Painting Vessel and Light Fixture and Their Requirements
Appendix B (Informative) Lower Flammable Limit of Common Solvents
