GB 12367-2006 English PDF (GB12367-2006)

Delivery: 3 seconds. Download true-PDF + Invoice.
Get QUOTATION in 1-minute: Click GB 12367-2006
Historical versions: GB 12367-2006
Preview True-PDF (Reload/Scroll if blank)

GB 12367-2006: Safety code for painting -- Safety for electrostatic spray painting process
GB 12367-2006
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 13.100
C 65
Replacing GB 12367-1990
Safety code for painting - Safety for electrostatic
spray painting process
ISSUED ON: JANUARY 23, 2006
IMPLEMENTED ON: SEPTEMBER 01, 2006
Issued by: General Administration of Quality Supervision, Inspection and
Quarantine of PRC;
Standardization Administration of PRC.
Table of Contents
Foreword ... 3 
1 Scope ... 6 
2 Normative references ... 6 
3 Terms and definitions ... 7 
4 Working area for electrostatic spray painting ... 8 
5 Ventilation and purification ... 11 
6 Automatic electrostatic painting equipment ... 12 
7 Manual electrostatic painting equipment ... 14 
8 Paint storage and transportation ... 15 
9 Operation and maintenance ... 15 
10 Training and assessment ... 19 
Appendix A (Informative) Commonly used electrostatic measuring instruments
... 20 
Safety code for painting - Safety for electrostatic
spray painting process
1 Scope
This standard specifies the safety requirements for electrostatic spray painting
process and equipment, paint storage and transportation, operation and
maintenance, etc.
This standard is applicable to the design, manufacture, use, supervision and
management of electrostatic spray painting process and equipment using
combustible or combustible paint. The electrostatic spraying process using
other flammable and explosive materials or water-based paint can be
implemented with reference to this standard.
2 Normative references
The provisions in following documents become the provisions of this Standard
through reference in this Standard. For the dated references, the subsequent
amendments (excluding corrections) or revisions do not apply to this Standard;
however, parties who reach an agreement based on this Standard are
encouraged to study if the latest versions of these documents are applicable.
For undated references, the latest edition of the referenced document applies.
GB 3836.15-2000 Electrical apparatus for explosive gas atmospheres - Part
15: Electrical installations in hazardous areas (other than mines) (eqv IEC
60079-14:1996)
GB 4385 Technical requirements for antistatic footwear and conductive
footwear (GB 4385-1995 neq ISO 8782-1: 1989)
GB 6514-1995 Safety code for painting - Safety, ventilation and air clean-up
for painting process
GB 7691-2003 Safety code for painting - Safety management general rule
GB 8978 Integrated wastewater discharge standard
GB 12158 General guideline for preventing electrostatic accidents
GB/T 14441-1993 Safety code for painting - Terminology
GB 50058 Electrical installations design code for explosive atmospheres and
fire hazard
GBJ 140 Code for design of extinguisher distribution in buildings
3 Terms and definitions
The terms specified in GB/T 14441-1993 as well as the following terms and
definitions apply to this standard.
3.1
Electrostatic spray painting
Under the action of a high-voltage electric field, the spray painting method
where the sprayed solvent-based paint drops are charged with a negative
charge by the principle of corona discharge, then further atomized, adsorbed
on the positively charged grounded substrate, finally discharged and
attached to the substrate.
3.2
Working area for electrostatic spray painting
Painted area where electrostatic spray painting is performed.
3.3
Electrostatic atomizing head
Pneumatic, electric, hydraulic, ultrasonic or other forms of equipment with
high-voltage electrostatic protection measures which, at the aid of centrifugal
force or compressed air and electrostatic repulsion, electrostatically charge
and fully atomize the paint, such as: electrostatic spray gun, spinning cup,
throwing plate, fog bin, etc.
3.4
Booth for electrostatic spray painting
A completely enclosed or semi-enclosed room or enclosure structure with
good mechanical ventilation and lighting equipment, specially used for
electrostatic spray painting. The indoor airflow organization can prevent
paint mist and solvent vapor from escaping outward and make it
concentrated and safely introduced into the exhaust system.
d) There shall be explosion-proof seal when the tow line is lead into the
junction box, accessory box or enclosure;
e) It shall comply with the national provisions on electrical equipment in
explosive hazardous areas.
4.5 Electrostatic painting equipment
Electrostatic painting equipment shall comply with the requirements specified
in 9.3 of GB 3836.15-2000 and GB 50058; it shall only be installed and used in
electrostatic painting areas when it meets the requirements of chapter 6 and
chapter 7 of this standard.
4.6 Fire protection
4.6.1 The fire protection requirements of the electrostatic spray painting area
shall be implemented in accordance with the provisions of clause 5.4 and
chapter 8 of GB 6514-1995.
4.6.2 The electrostatic spray booth shall be equipped with a combustible gas
concentration and fire alarm device (explosion-proof detector), which shall be
interlocked with automatic feeding stop, power cut off device, automatic fire
extinguishing device, etc.
4.6.3 Automatic fire control valves shall be installed in the ventilation ducts
which connect the electrostatic spray booth; the effective working conditions of
the valves shall be maintained.
4.6.4 The building where the electrostatic painting area is located shall be
equipped with fire extinguishing equipment according to the requirements
specified in GBJ 140.
4.6.5 Automatic electrostatic painting equipment using combustible or
combustible paint shall be protected by a flame detection device. When a fire
occurs, the flame detection device can react to the flame within 0.5 s and
complete the following tasks:
a) Turn on the local alarm near the electrostatic painting area and the alarm
system that may be installed on the electrostatic spray painting equipment;
b) Close the feeding system;
c) Terminate all spraying operations;
d) Stop all conveying equipment entering and leaving the electrostatic spray
painting area;
e) Cut off the power supply of the high voltage devices in the electrostatic
5.5 The wastewater produced in the electrostatic spray painting process shall
be purified and treated to meet the requirements of GB 8978.
6 Automatic electrostatic painting equipment
6.1 Approved equipment
The electrostatic atomizing head is an electrostatic painting equipment fixed by
mechanical clamping. Both the equipment and the equipment for eliminating
static electricity shall comply with the requirements of chapter 6 of GB 7691-
2003, meanwhile it shall have the in-factory acceptance certificate.
6.2 Electrical and control equipment
6.2.1 The electrostatic spray painting area allows the installation of high-voltage
grids, electrodes, electrostatic atomizing heads and connecting cables.
6.2.2 Transformers, high-voltage power supplies, control devices and other
electrical components (such as plugs, etc.) shall be installed outside the
electrostatic spray painting area.
6.2.3 Electrical equipment and ignition sources shall comply with the provisions
of 5.4 of GB 6514-1995.
6.3 High-voltage electrostatic generator
The requirements of the high-voltage electrostatic generator shall be
implemented in accordance with the provisions of 8.3 of GB 6514-1995.
6.4 Electrode and electrostatic atomizing head
6.4.1 ...