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GB 20286-2006

時(shí)間: 2020-10-21

The National Standard GB 20286-2006 specifies the definition and classification, requirements and mark on the burning behavior of fire retarding products and subassemblies in public place.Chapter 5 and chapter 6 of this standard are mandatory, and the rest chapters are voluntary.
 
Fire retarding products and subassemblies (except for building products) in public places may be divided into two grades according to the burning behaviors:
——Fire retarding level one;
——Fire retarding level two.
 
This standard specifies the burning behavior of foams used in seats, sofas, mattresses and other upholstered furniture used in public places shall conform to the provisions prescribed in Table 1.
 
Table 1 Technical Requirements on the Burning Behavior of Fire Retarding Foams in Public Places
Fire retarding Level
Product Category
Standard
Determinant Index
Fire retarding level 1
(Foam)
Fire retarding foams
GB/T 16172
 
GB/T 8333
 
GB/T 8627
GB/T 20285
 
a) Peak Value of Heat Release Rate≤250 kW/m2;
b) Average Burning Time≤30 s,
 Average Burning Height≤250 mm;
c) Smoke Density Range (SDR)≤75;
d) Toxicity of fire effluents is not lower than level ZA2.
Fire retarding level 2
(Foam)
Fire retarding foams
GB/T 8333
 
GB/T 20285
 
a) Average Burning Time≤30 s,
 Average Burning Height≤250 mm;
b) Toxicity of fire effluents is not lower than level ZA3.
Note: The radiant heat flow of the test on heat release rate: 50 kW/m2.
 
The burning behavior of beds, mattresses, connection boxes, sofas, teapoys, tables, chairs and other furniture/subassemblies used indoor in public places shall conform to the provisions prescribed in Table 2.
 
Table 2 Technical Requirements on the Burning Behavior of Fire Retarding Furniture and Subassemblies in Public Places
Fire retarding Level
Product Category
Method of Test
Determinant Index
Fire retarding level 1
(Furniture/Subassemblies)
Upholstered furniture
Annex B
 
 
 
 
GB 17927
 
a) Peak Value of Heat Release Rate≤150 kW;
b) Total Energy Released within 5 Minutes≤30 MJ;
c) Maximum Smoke Density≤75%;
d) No flaming ignition or smoldering ignition.
Subassemblies/other furniture
Annex C
a) Peak Value of Heat Release Rate≤150 kW;
b) Total Energy Released within 5 Minutes≤30 MJ;
c) Maximum Smoke Density≤75%,。
Fire retarding level 2
(Furniture/Subassemblies)
Upholstered furniture
Annex B
 
 
 
 
 
GB 17927
 
a) Peak Value of Heat Release Rate≤250 kW;
b) Total Energy Released within 5 Minutes≤40 MJ;
c) Test piece does not burn completely;
d) No flaming ignition or smoldering ignition.
Subassemblies/other furniture
Annex C
a) Peak Value of Heat Release Rate≤250 kW;
b) Total Energy Released within 5 Minutes≤40 MJ;
c) Test piece does not burn completely.
 
For more information please contact 86-755-83997910 or email to wrr@sist.gov.cn