Codeofchina.com is in charge of this English translation. In case of any doubt about the contents of English translation, the Chinese original shall be considered authoritative.
5.1.5, 5.2 and Clause 7 of this standard are compulsory, while the rest are recommendatory.
This standard is drafted in accordance with the rules given in the GB/T 1.1-2009.
This standard replaces GB 14907-2002 Fire Resistive Coating for Steel Structure.
In addition to a number of editorial changes, the following technical deviations have been made with respect to the GB 14907-2002 (the previous edition).
— The term and definition of section factor are added (see 3.2);
— Product classification and designation are modified (see Clause 4; Clause 4 of Edition 2002);
— The general requirements of products are modified (see 5.1; 5.1 of Edition 2002);
— The deviation requirements and test methods for heat insulation efficiency are added (see 5.2 and 6.4.7);
— The requirements and test methods for pH value are added (see 5.2 and 6.4.8);
— The requirements and test methods for water resistance, cold and heat cycling resistance, heat exposure resistance, wet and heat resistance, freeze-thaw cycling resistance, acid resistance, alkali resistance, salt fog corrosion resistance, fire resistance are modified (see 5.2, 6.4.9, 6.4.10, 6.4.11, 6.4.12, 6.4.13, 6.4.14, 6.4.15, 6.4.16 and 6.5; 5.2, 6.4.8, 6.4.9, 6.4.10, 6.4.11, 6.4.12, 6.4.13, 6.4.14, 6.4.15 and 6.5 of Edition 2002);
— The physical and chemical properties for preparation of test specimens are modified (see 6.3; 6.3 of Edition 2002);
— The requirements and test methods for ultraviolet radiation resistance are added (see 5.2 and 6.4.17);
— Additional fire resistance are deleted (see 6.6 of Edition 2002);
— The inspection rules are modified (see Clause 7; Clause 7 of Edition 2002);
— The heat insulation efficiency test of fire resistive coating for steel structure is added (see Annex A);
— The loading capacity calculation for fire resistance test of fire resistive coating for steel structure is modified (see Annex B; Annex A of Edition 2002);
— The evaluation for corrosiveness of fire retardant coatings for steel structures is deleted (see Appendix B of Edition 2002).
This standard 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 standard are as follows:
— GB 14907-1994, GB 14907-2002.
Fire Resistive Coating for Steel Structure
1 Scope
This standard specifies the terms and definitions, classification and designation , technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of fire resistive coating for steel structure.
This standard is applicable to all kinds of fire resistive coating for steel structure surface of buildings (or structures).
2 Normative References
The following referenced documents are indispensable for the application of this document. For dated reference, only the edition cited applies. For undated reference, the latest edition of the referenced document (including any amendments) applies.
GB/T 191 Packaging — Pictorial Marking for Handling of Goods
GB/T 706-2016 Hot Rolled Section Steel
GB/T 1728-1979 Methods of Test for Drying Time of Coatings of Paints and Putties
GB/T 3186-2006 Paints, Varnishes and Raw Materials for Paints and Varnishes — Sampling
GB/T 6388 Transport Package Shipping Mark
GB/T 9779-2015 Multi-layer Coatings for Architecture
GB/T 9978.1-2008 Fire-resistance Tests — Elements of Building Construction — Part 1: General Requirements
GB/T 9978.6 Fire-resistance Tests — Elements of Building Construction — Part 6: Specific Requirements for Beams
GB/T 11263-2017 Hot-rolled H and Cut T Section Steel
GB/T 14522-2008 Artificial Weathering Test method for Plastics, Coating and Rubber Materials Used for Machinery Industrial Products — Fluorescent UV Lamps
GB 15930-2007 Fire Dampers for Building-venting and Smoke-venting System
GB 50017-2003 Code for Design of Steel Structures
GA/T 714-2007 Rapid Rise Fire Test Methods of Fire Protection Materials for Structural Elements
3 Terms and Definitions
For the purpose of this document, the following terms and definitions apply.
3.1
fire resistive coating for steel structure
coatings applied on the surfaces of steel structure in buildings (or structures) to form into a fire resistive and heat-insulating protective layer to improve the fire endurance of steel structure
3.2
section factor
ratio of the outer surface area per unit length of the unprotected steel member to the corresponding volume per unit length
4 Classification and Designation
4.1 Classification
4.1.1 Fire resistive coating can be classified as following according to the fire protected object:
a) Fire resistive coating for ordinary steel structures: fire resistive coating for the surface of steel structures of ordinary industrial and civil buildings (structures);
b) Fire resistive coating for special steel structures: fire resistive coating used on the surface of special buildings (structures), such as petrochemical facilities, power transformation and distribution stations, etc.
4.1.2 Fire resistive coating can be classified as following according to the use locations:
a) Fire resistive coating for interior steel structure: fire resistive coating used for the surface of steel structure in the building interior or concealed works;
b) Fire resistive coating for outdoor steel structure: fire resistive coating used for the surface of steel structure in the building outdoor or outdoor works;
4.1.3 Fire resistive coating can be classified as following according to the dispersion medium:
a) Water-based fire resistive coating for steel structure: fire resistive coating with water as dispersion medium for steel structure;
b) Solvent-based fire resistive coating for steel structure: fire resistive coating with organic solvent as dispersion medium for steel structure.
4.1.4 Fire resistive coating can be classified as following according to the fire protection mechanism:
a) Fire resistive coating for expanded steel structure: fire resistive coating for steel structure used for the coating expands and foams at high temperature to form a fire resistance and heat-insulating protective layer;
b) Fire resistive coating for non-expansible steel structure: fire resistive coating for steel structure can forms a fire resistance and heat-insulating protective layer without expanding and foaming at high temperature.
4.2 Fire resistance classification
4.2.1 Fire resistance limits of fire resistive coating for steel structure are classified into: 0.50 h, 1.00 h, 1.50 h, 2.00 h, 2.50 h and 3.00 h.
4.2.2 See Table 1 for the classification code of fire resistance of fire resistive coating for steel structure.
Table 1 Classification Code of Fire Resistance
Fire resistance limits (Fr) Classification code of fire resistance
h Fire resistive coating for common steel structure Fire resistive coating for special steel structure
0.50≤Fr<1.00 Fp0.50 Ft0.50
1.00≤Fr<1.50 Fp1.00 Ft1.00
1.50≤Fr<2.00 Fp1.50 Ft1.50
2.00≤Fr<2.50 Fp2.00 Ft2.00
2.50≤Fr<3.00 Fp2.50 Ft2.50
Fr≥3.00 Fp3.00 Ft3.00
Note: Fp adopts temperature rise test conditions of building fiber fire; Ft adopts the temperature rise test conditions of hydrocarbon compounds (HC) fire.
4.3 Designation
The product code of fire resistive coating for steel structure is represented by the letter GT. The relevant feature codes of fire resistive coating for steel structure are as follows: the feature codes N and W of use locations represent indoor and outdoor respectively; the feature codes S and R of disperse medium represent water-base and solvent-base respectively; the feature codes P and F of fire mechanism represent expansion type and non-expansion type respectively; the principal parameter code is represented by the fire resistance classification code specified in Table 1.
Foreword II
1 Scope
2 Normative References
3 Terms and Definitions
4 Classification and Designation
5 Technical Requirements
6 Test Method
7 Inspection Rules
8 Marking, Packaging, Transportation and Storage
Annex A (Normative) Insulation Efficiency Test of Fire Resistive Coating for Steel Structure
Annex B (Normative) Fire Resistance Test Load Calculation of Fire Resistive Coating for Steel Structure
Codeofchina.com is in charge of this English translation. In case of any doubt about the contents of English translation, the Chinese original shall be considered authoritative.
5.1.5, 5.2 and Clause 7 of this standard are compulsory, while the rest are recommendatory.
This standard is drafted in accordance with the rules given in the GB/T 1.1-2009.
This standard replaces GB 14907-2002 Fire Resistive Coating for Steel Structure.
In addition to a number of editorial changes, the following technical deviations have been made with respect to the GB 14907-2002 (the previous edition).
— The term and definition of section factor are added (see 3.2);
— Product classification and designation are modified (see Clause 4; Clause 4 of Edition 2002);
— The general requirements of products are modified (see 5.1; 5.1 of Edition 2002);
— The deviation requirements and test methods for heat insulation efficiency are added (see 5.2 and 6.4.7);
— The requirements and test methods for pH value are added (see 5.2 and 6.4.8);
— The requirements and test methods for water resistance, cold and heat cycling resistance, heat exposure resistance, wet and heat resistance, freeze-thaw cycling resistance, acid resistance, alkali resistance, salt fog corrosion resistance, fire resistance are modified (see 5.2, 6.4.9, 6.4.10, 6.4.11, 6.4.12, 6.4.13, 6.4.14, 6.4.15, 6.4.16 and 6.5; 5.2, 6.4.8, 6.4.9, 6.4.10, 6.4.11, 6.4.12, 6.4.13, 6.4.14, 6.4.15 and 6.5 of Edition 2002);
— The physical and chemical properties for preparation of test specimens are modified (see 6.3; 6.3 of Edition 2002);
— The requirements and test methods for ultraviolet radiation resistance are added (see 5.2 and 6.4.17);
— Additional fire resistance are deleted (see 6.6 of Edition 2002);
— The inspection rules are modified (see Clause 7; Clause 7 of Edition 2002);
— The heat insulation efficiency test of fire resistive coating for steel structure is added (see Annex A);
— The loading capacity calculation for fire resistance test of fire resistive coating for steel structure is modified (see Annex B; Annex A of Edition 2002);
— The evaluation for corrosiveness of fire retardant coatings for steel structures is deleted (see Appendix B of Edition 2002).
This standard 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 standard are as follows:
— GB 14907-1994, GB 14907-2002.
Fire Resistive Coating for Steel Structure
1 Scope
This standard specifies the terms and definitions, classification and designation , technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of fire resistive coating for steel structure.
This standard is applicable to all kinds of fire resistive coating for steel structure surface of buildings (or structures).
2 Normative References
The following referenced documents are indispensable for the application of this document. For dated reference, only the edition cited applies. For undated reference, the latest edition of the referenced document (including any amendments) applies.
GB/T 191 Packaging — Pictorial Marking for Handling of Goods
GB/T 706-2016 Hot Rolled Section Steel
GB/T 1728-1979 Methods of Test for Drying Time of Coatings of Paints and Putties
GB/T 3186-2006 Paints, Varnishes and Raw Materials for Paints and Varnishes — Sampling
GB/T 6388 Transport Package Shipping Mark
GB/T 9779-2015 Multi-layer Coatings for Architecture
GB/T 9978.1-2008 Fire-resistance Tests — Elements of Building Construction — Part 1: General Requirements
GB/T 9978.6 Fire-resistance Tests — Elements of Building Construction — Part 6: Specific Requirements for Beams
GB/T 11263-2017 Hot-rolled H and Cut T Section Steel
GB/T 14522-2008 Artificial Weathering Test method for Plastics, Coating and Rubber Materials Used for Machinery Industrial Products — Fluorescent UV Lamps
GB 15930-2007 Fire Dampers for Building-venting and Smoke-venting System
GB 50017-2003 Code for Design of Steel Structures
GA/T 714-2007 Rapid Rise Fire Test Methods of Fire Protection Materials for Structural Elements
3 Terms and Definitions
For the purpose of this document, the following terms and definitions apply.
3.1
fire resistive coating for steel structure
coatings applied on the surfaces of steel structure in buildings (or structures) to form into a fire resistive and heat-insulating protective layer to improve the fire endurance of steel structure
3.2
section factor
ratio of the outer surface area per unit length of the unprotected steel member to the corresponding volume per unit length
4 Classification and Designation
4.1 Classification
4.1.1 Fire resistive coating can be classified as following according to the fire protected object:
a) Fire resistive coating for ordinary steel structures: fire resistive coating for the surface of steel structures of ordinary industrial and civil buildings (structures);
b) Fire resistive coating for special steel structures: fire resistive coating used on the surface of special buildings (structures), such as petrochemical facilities, power transformation and distribution stations, etc.
4.1.2 Fire resistive coating can be classified as following according to the use locations:
a) Fire resistive coating for interior steel structure: fire resistive coating used for the surface of steel structure in the building interior or concealed works;
b) Fire resistive coating for outdoor steel structure: fire resistive coating used for the surface of steel structure in the building outdoor or outdoor works;
4.1.3 Fire resistive coating can be classified as following according to the dispersion medium:
a) Water-based fire resistive coating for steel structure: fire resistive coating with water as dispersion medium for steel structure;
b) Solvent-based fire resistive coating for steel structure: fire resistive coating with organic solvent as dispersion medium for steel structure.
4.1.4 Fire resistive coating can be classified as following according to the fire protection mechanism:
a) Fire resistive coating for expanded steel structure: fire resistive coating for steel structure used for the coating expands and foams at high temperature to form a fire resistance and heat-insulating protective layer;
b) Fire resistive coating for non-expansible steel structure: fire resistive coating for steel structure can forms a fire resistance and heat-insulating protective layer without expanding and foaming at high temperature.
4.2 Fire resistance classification
4.2.1 Fire resistance limits of fire resistive coating for steel structure are classified into: 0.50 h, 1.00 h, 1.50 h, 2.00 h, 2.50 h and 3.00 h.
4.2.2 See Table 1 for the classification code of fire resistance of fire resistive coating for steel structure.
Table 1 Classification Code of Fire Resistance
Fire resistance limits (Fr) Classification code of fire resistance
h Fire resistive coating for common steel structure Fire resistive coating for special steel structure
0.50≤Fr<1.00 Fp0.50 Ft0.50
1.00≤Fr<1.50 Fp1.00 Ft1.00
1.50≤Fr<2.00 Fp1.50 Ft1.50
2.00≤Fr<2.50 Fp2.00 Ft2.00
2.50≤Fr<3.00 Fp2.50 Ft2.50
Fr≥3.00 Fp3.00 Ft3.00
Note: Fp adopts temperature rise test conditions of building fiber fire; Ft adopts the temperature rise test conditions of hydrocarbon compounds (HC) fire.
4.3 Designation
The product code of fire resistive coating for steel structure is represented by the letter GT. The relevant feature codes of fire resistive coating for steel structure are as follows: the feature codes N and W of use locations represent indoor and outdoor respectively; the feature codes S and R of disperse medium represent water-base and solvent-base respectively; the feature codes P and F of fire mechanism represent expansion type and non-expansion type respectively; the principal parameter code is represented by the fire resistance classification code specified in Table 1.
Contents of GB 14907-2018
Foreword II
1 Scope
2 Normative References
3 Terms and Definitions
4 Classification and Designation
5 Technical Requirements
6 Test Method
7 Inspection Rules
8 Marking, Packaging, Transportation and Storage
Annex A (Normative) Insulation Efficiency Test of Fire Resistive Coating for Steel Structure
Annex B (Normative) Fire Resistance Test Load Calculation of Fire Resistive Coating for Steel Structure
