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GB 50222-2017: Code for fire prevention in design of interior decoration of buildings
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GB 50022-2017
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
UDC
P GB 50022-2017
Code for fire prevention in design of
interior decoration of buildings
ISSUED ON. JULY 31, 2017
IMPLEMENTED ON. APRIL 01, 2018
Issued by. Ministry of Housing and Urban-Rural Development of PRC;
General Administration of Quality Supervision Inspection and
Quarantine of PRC.
Table of Contents
Foreword ... 5 
1 General provisions ... 7 
2 Terms ... 8 
3 Types and classification decoration materials ... 9 
4 Typical places ... 10 
5 Civil buildings ... 13 
5.1 Single-storey and multi-storey civil buildings ... 13 
5.2 High-rise civil buildings ... 15 
5.3 Underground civil buildings ... 17 
6 Factory buildings and warehouses ... 19 
Explanation of wording in this standard ... 21 
List of quoted standards ... 22 
Code for fire prevention in design of
interior decoration of buildings
1 General provisions
1.0.1 This Code is formulated to standardize the design of interior decoration of
buildings, reduce fire hazards, and protect personal and property safety.
1.0.2 This Code is applicable to the design of fire prevention in interior
decoration of industrial and civil buildings. It is not applicable to the design of
fire prevention in interior decoration of ancient buildings and wooden structures.
1.0.3 The design of interior decoration for the building shall actively adopt non-
combustible materials and flame-retardant materials, avoid the use of materials
that generate a large amount of smoke or poisonous gases during combustion,
so that it is safe and applicable, advanced in technology and economical.
1.0.4 The design in fire prevention of interior decoration of the building shall
comply with the provisions of the relevant current national standards in addition
to the provisions of this Code.
2 Terms
2.0.1
Interior decoration of buildings
Such activities as decoration, protection, installation of fixed facility which
are performed for the interior space of building for the purposes to meet the
functional needs.
2.0.2
Decorative fabric
Textiles made of natural fibers such as cotton, hemp, silk, wool, and other
synthetic fibers, such as curtain and purdah, to meet the internal functional
needs of the building.
2.0.3
Partition
A fixed vertical vertical partition, which does not reach to the roof, inside the
building.
2.0.4
Fixed furniture
Furniture that is fixed to the building structure or that is not easy to change
position, such as the closet, wall cabinets, display stands, large shelves and
so on inside the building.
storage room, ventilation and air-conditioning machine room, etc., all
interior decoration shall use the grade A decoration materials.
4.0.10 For the fire control room and other important rooms, the ceiling and
wall shall use the grade A decoration materials, the floor and other parts
shall use the decoration materials which are not lower than grade B1.
4.0.11 For the kitchen in the building, the ceiling, wall, floor shall use the
grade A decoration materials.
4.0.12 For the restaurant and scientific research laboratories that often
use open flame appliances, the combustion performance grade of the
decoration materials shall be increased by one grade, based on the
provisions in Table 5.1.1, Table 5.2.1, Table 5.3.1, Table 6.0.1, Table 6.0.5.
4.0.13 For the warehouse or storage room in the civil building, all the
interior decoration shall comply with the provisions for the corresponding
locations, the decoration materials shall be not lower than grade B1.
4.0.14 The decoration design of the exhibition places shall comply with
the following provisions.
1 The exhibition stand’s materials shall use the decoration materials
not lower than grade B1.
2 In the catering operation area where electric heating equipment is
installed in the exhibition hall, the wall surface and the operation
bench adjacent to the electric heating equipment shall use the grade
A decoration materials.
3 The position of the exhibition stand which is adjacent to the high-
temperature lighting fixtures such as the tungsten halogen lamp
shall use the grade A decoration materials.
4.0.15 The design of decoration of residential building shall also meet the
following requirements.
1 It shall not alter the internal flue or air duct in the residential building.
2 The fixed cabinets in the kitchen should be made of decoration materials
not lower than grade B1.
3 The bathroom’s ceiling should use the grade A decoration materials.
4 The balcony’s decoration should use the decoration materials of not lower
than grade B1.
4.0.16 For the lighting fixtures as well as the high-temperature parts of the
5 Civil buildings
5.1 Single-storey and multi-storey civil buildings
5.1.1 The combustion performance grade of the decoration materials in
various parts of single-storey and multi-storey civil buildings shall not be
lower than the provisions of Table 5.1.1 of this Code.
Table 5.1.1 -- Combustion performance grades of decoration materials at
various parts inside the single-storey, multi-storey civil buildings
No. Buildings and places Scale and nature of building
Combustion performance grade of decoration
materials
Ceili
ng Wall Floor
Parti
tion
Fixe
furnit
ure
Decorative
fabric
Other
decorati
on
material
Curt
ain
Purd
ah
Departure lounge, VIP lounge,
ticket office, shops, dining
venues, etc. of terminal
- A A B1 B1 B1 B1 - B1
Waiting room, store, dining
place, etc. of bus station, railway
station, ship passenger terminal
Building area > 10000
m2 A A B1 B1 B1 B1 - B2
Building area ≤ 10000
m2 A B1 B1 B1 B1 B1 - B2
Auditorium, conference hall,
multi-purpose hall, waiting hall,
etc.
Building area of each
hall > 400 m2 A A B1 B1 B1 B1 B1 B1
Building area of each
hall ≤ 400 m2 A B1 B1 B1 B2 B1 B1 B2
4 Gymnasium
> 3000 seats A A B1 B1 B1 B1 B1 B2
≤ 3000 seats A B1 B1 B1 B2 B2 B1 B2
5 Business hall of store
Building area per floor >
1500 m2, or total building
area > 3000 m2
A B1 B1 B1 B1 B1 - B2
Building area per floor ≤
1500 m2, or total building
area ≤ 3000 m2
A B1 B1 B1 B2 B1 - -
which has an area of less than 100 m2 inside the single-storey, multi-storey civil
buildings, when it is separated from other parts by the fireproof partition wall
and grade A fire door and window which have a fire endurance not less than 2.00
h, the combustion performance grade of the decoration materials may be
reduced by one grade based on the provisions of Table 5.1.1 of this Code.
5.1.3 Except for the places as specified in clause 4 of this Code and the
locations as specified in No.11 ~ 13 of Table 5.1.1 of this Code, when an
automatic fire-extinguishing system is installed in a space of the single-storey
and multi-storey civil buildings where internal decoration is needed, except for
the ceiling, the combustion performance grade of the decoration materials may
be reduced by one grade based on the provisions of Table 5.1.1 of this Code;
when the automatic fire alarm device and the automatic fire-extinguishing
system are installed at the same time, the combustion performance grade of
the decoration materials may be reduced by one grade based on the provisions
of Table 5.1.1 of this Code.
5.2 High-rise civil buildings
5.2.1 The combustion performance grade of the decoration materials of
various parts inside the high-rise civil building shall not be lower than the
provisions of Table 5.2.1 of this Code.
Table 5.2.1 -- Combustion performance grades of various parts inside
the high-rise civil building
No
. Buildings and places
Scale and nature
of building
Combustion performance grade of decoration materials
Ceili
ng Wall Floor
Parti
tion
Fixe
furnit
ure
Decorative fabric Other
decor
ation
materi
al
Curt
ain
Purd
ah
beds
prea
Furn
iture
wrap
per
Departure lounge, VIP
lounge, ticket office,
shops, dining venues, etc.
of terminal
- A A B1 B1 B1 B1 - - - B1
Waiting room, store, dining
place, etc. of bus station,
railway station, ship
passenger terminal
Building area >
10000 m2 A A B1 B1 B1 B1 - - - B2
Building area ≤
10000 m2 A B1 B1 B1 B1 B1 - - - B2
Auditorium, conference
hall, multi-purpose hall,
waiting hall, etc.
Building area of
each hall > 400 m2 A A B1 B1 B1 B1 B1 - B1 B1
Building area of
each hall ≤ 400 m2 A B1 B1 B1 B2 B1 B1 - B1 B1
1 General provisions
1.0.1 This clause specifies the purpose and basis for the development of this
Code. This Code is formulated to ensure the fire safety of the interior decoration
of the building and to prevent and reduce the hazards of building fires. It
requires the personnel of the design, construction and fire supervision
departments to closely cooperate with each other. In the decoration design,
carefully and rationally use various decoration materials, actively adopt
advanced fire prevention technology to achieve “preventing problems before
they occur”, to prevent the occurrence and spreading of fire hazard from the
positive aspects. This is extremely important for reducing fire damage, ensuring
the safety of personnel lives and property, guaranteeing the smooth progress
of economic construction.
This Code is compiled in accordance with the relevant provisions of the current
national standards “Code of design on building fire protection and prevention”
GB 50016, “Code for fire protection design of civil air defence works” GB 50098,
etc., through investigation and summary of the actual conditions of the medium
and high rank restaurants, hotels, theaters, gymnasiums, comprehensive
buildings, etc. which are newly built in recent years, combining with the
characteristics and requirements of the design of interior decoration of the
building, with reference to the relevant codes for design of fire prevention of
buildings of some advanced countries on the fire prevention of interior
decoration, combining with the national conditions.
1.0.2 This clause specifies the scope of application and the scope of non-
application of this Code.
This Code applies to the design of interior decoration of industrial and civil
buildings.
With the improvement of people’s living standards, interior decoration has
developed rapidly, with a large number of residential buildings and a very
different level of decoration. The decoration of some of the residential buildings
is designed and constructed in a unified manner by the building organization.
In order to protect the safety of residents, the interior decoration which is
designed and constructed in a unified manner by the building organization shall
implement this Code.
1.0.3 According to the “Fire case analysis” which is edited and published by the
China Fire Protection Association, many fires are caused by the burning of
decoration materials. Some of them are caused by ignition of bedclothes by
cigarette ends; some are caused by the ignition of curtains and purdah; others
are due to the burning-through of the wooden suspended ceiling and partitions
after catching fire. Therefore, it is required to correctly handle the contradiction
between the decoration effect and the safety of use, actively use non-
combustible materials and flame-retardant materials. For combustible or easily-
combustible materials which cannot reach to the flame-retardant materials, it
may use the method of flame-retardant treatment to improve the combustion
performance grade. The selection of the above materials may make reference
to such codes as the current national standard “Requirements and mark on
burning behavior of fire retarding products and subassemblies in public place”
GB 20286.
The non-combustible materials and flame-retardant materials referred to in this
clause correspond to the materials of relevant grades in the current national
standard “Classification for burning behavior of building materials and products”
GB 8624.
In recent years, the number of people killed in smoke and poisonous gas from
building fires has increased rapidly. For example, in the United Kingdom, the
number of people who died of tobacco suffocation in 1956 accounted for 20%
of the total number of fire deaths. In 1966, it increased to 40%. In 1976, it
reached as high as 50%. In Japan, the Sennichi department store fire killed 118
people, including 93 peoples killed by smoke, which accounted for 78.8% of the
death toll; in April 1986, in a fire in a residential building in Tianjin, 4 households
13 people were killed. In fact, the fire did not burn to their homes, even a full-
filled LPG cylinder placed 2 m away from one of the doors was still safe
afterwards. It is not the fire that robs these 13 lives, but the smoke and
poisonous gas. In 2000, a large fire broke out in a shopping mall in Luoyang
City, Henan Province, 309 peoples died because of poisonous gas asphyxia. In
2015, a cable well in a residential area in Wuhan caught fire, the 7 people who
died were suffocated on the way to escape.
People gradually realized the dangers of smoke and poisonous gases in fires.
Relevant departments have conducted some simulation tests and studies. The
interior decoration materials that generate smoke and poisonous gases in fires
are mainly organic polymer materials and wood. Common toxic and harmful
gases include carbon monoxide, carbon dioxide, sulfur dioxide, hydrogen
sulfide, hydrogen chloride, hydrogen cyanide, phosgene, and the like. Due to
the wide variety of interior decoration materials, the amount of smoke and
poisonous gases generated during combustion varies. There are certain
difficulties in quantitative control of smoke density, visibility and toxicity.
However, with the further development of all aspects of work of society, this <...