GB/T 11651-2008 English PDF (GBT11651-2008)

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GB/T 11651-2008: Code of practice for selection of personal protective equipment
GB/T 11651-2008
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 13.340.01
C 73
Replacing GB/T 11651-1989
Code of practice for selection of personal protective
equipment
ISSUED ON: DECEMBER 11, 2008
IMPLEMENTED ON: OCTOBER 01, 2009
Issued by: General Administration of Quality Supervision, Inspection and
Quarantine;
Standardization Administration of PRC.
Table of Contents
Foreword ... 3 
1 Scope ... 5 
2 Normative references ... 5 
3 Terms and definitions ... 5 
4 Operation category ... 7 
5 Protective properties of personal protective equipment ... 10 
6 Selection ... 14 
7 Discarding judgment rules ... 18 
Appendix A (Informative) Procedures for selection and discarding of personal
protective equipment ... 20 
Appendix B (Informative) Service life of personal protective equipment ... 22 
References ... 30 
Code of practice for selection of personal protective
equipment
1 Scope
This standard specifies the principles and requirements for the selection of
personal protective equipment.
This standard applies to the selection of personal protective equipment for all
production units and individuals.
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/T 12903-2008 Personal protective equipment terminology
3 Terms and definitions
The terms and definitions as defined in GB/T 12903-2008 as well as the
following terms and definitions apply to this standard.
3.1
Personal protective equipment (PPE)
The general term for all kinds of protective products worn, equipped and
used by practitioners to protect hazards from physical, chemical, biological
and other external factors.
Note: The labor protective products worn, equipped and used at the
production site are also called personal protective equipment.
3.2
Protective properties
tnw - Natural wet bulb temperature;
tg - Black ball temperature;
ta - Dry bulb temperature.
4 Operation category
4.1 According to the main hazard characteristics and working conditions in the
working environment, it is divided into 39 operation categories, as shown in
Table 1.
Table 1 -- Examples of operation categories and main hazard
characteristics
S/N Job category Descriptions Possible accident type Example
A01 Operation where objects fall or hit
The operation of falling objects or
collision of objects in the horizontal
direction Object strike
and collision
Construction and installation, bridge
construction, mining, drilling,
shipbuilding, lifting, deforestation
A02 Operation with debris splashing
Operations where there may be
cutting and splashing operations
during processing
Crushing, hammering, casting
cutting, grinding wheel grinding,
high pressure fluid cleaning
A03 Operation of rotating machinery
The operation during the operation
of mechanical equipment which
may cause damage by twisting
and grinding Mechanical
injury
Machine tools, transmission
machinery
A04 Operation with sharp appliances
Production tools or processed
products used in production are
likely to cause injuries such as cuts
and stab wounds during operators
Deburring and edge cleaning for
metal processing, glass assembly
and processing
A05
The operation where
there are sharp
objects on the ground
The operation where the work
surface may cause stab injuries to
the workers' feet or legs
Others Forest operations, construction sites
A06 Hand-held vibration machinery operation
The mechanical vibration or impact
operation during which the hand-
held vibrating tools are used in
production, which directly acts on
the human arm system
Mechanical
injury
Air drill, air shovel, chain saw
A07
Operation with people
subjected to whole
body vibration
Operation under vibration or in an
unbearable vibration environment
Field machinery driving, forestry
operations
A08
Shoveling, loading,
lifting, pushing
machinery operation
Operation and driving of heavy
excavation, construction, loading
and lifting equipment with small
range of activities
Other
transportation
injuries
Operate machinery such as
shovels, bulldozers, loaders,
cranes, gantry cranes, tower
cranes, single-arm cranes, etc.
Table 1 (continued)
S/N Job category Descriptions
Possible
accident
type
Example
A19
Operation of
inhaled gas-
phase poisons
Operations in the workplace where toxic
substances will produce after inhaling the
gas or vapor at normal temperature and
pressure through the respiratory tract
Poison
injury
Operations exposed to chlorine gas,
carbon monoxide, hydrogen sulfide,
vinyl chloride, phosgene, mercury
A20 Operation in a confined place
Operation in a place with no air circulation,
including operation in a place where there is
no oxygen, that is, the oxygen concentration
in the air is less than 18% and the toxic gas
and toxic aerosol exceed the limited and
cannot be removed
Affect
breathing
Airtight tanks, warehouses, tunnels
or drainage systems, furnaces,
kilns, confined spaces for storing
oxygen-consuming appliances or
organisms for oxygen consumption
A21
Operation of
inhaled aerosol
poison
Operations in the workplace where toxic
substances will produce after inhaling the
aerosol at normal temperature and pressure
through the respiratory tract
Poison
damage
Operation in contact with fumes and
dust of toxic metals and compounds
such as aluminum, chromium,
beryllium, manganese and
cadmium, asphalt fumes, silica dust,
asbestos dust, other harmful animal
(plant) physical dust
A22 Contaminated poison operation
Operations in workplace where substances
may adhere to skin, clothing; after skin
absorption, it may cause poisonous damage
to skin
Operation in exposure to organic
phosphorus pesticides, organic
mercury compounds, benzene and
benzene di- and trinitro compounds,
radioactive materials
A23 Biological poison operation
Operation in the workplace where there is a
risk of infection or absorption of biological
toxins
Poison
damage
Toxic animal and plant breeding,
biological toxin culture preparations,
processing of products carrying
bacteria or containing biological
toxins, treatment of rotten articles,
epidemic prevention inspection
A24 Noise operation Operation in an environment with a sound level greater than 85 dB Others
Pneumatic drill, air hammer,
riveting, knocking or rust shoveling
in steel cylinder
A25 Operation in strong light
Operation where there is strong light source
or which produces strong infrared radiation
and ultraviolet radiation
Radiation
damage
Arc light, arc welding, furnace
operation
A26 Laser operation Operation of laser emission and processing
Laser processing metal, laser
w...