1. Standard - EN 13501-1:2007A1+2009

 EN 13501-1:2007A1+2009 Fire classification of construction products and building elements-Part 1: Classification using data from reaction to fire tests.

 EN 13501-1 according to requirements and test results, divided into seven levels: A1, A2, B, C, D, E, F

EN13501-1 related standard:

EN ISO 1182: non –combustibility test

EN ISO 1716: heat of combustion test

EN 13823: single burning item test

EN ISO 9239-1: determination of the burning behaviour of floorings, using a radiant heat source

EN ISO 11925-2: ignitability test

2. Standard Brief--EN 13501-1:2007A1+2009

Flammability classification：A1、A2、B、C、D、E、F or A_FL1、A_FL2、B_FL、C_FL、D_FL 、E_FL 、F_FL or A_L1、A_L2、B_L、C_L、D_L 、E_L 、F_L

Toxicity：T0、T1、T2

Smoke density：S1、S2、S3

dripping：D0、D1、D2

3. Test method and classification

3.1 Classes of reaction to fire performance for construction products excluding floorings

Class A1: According to EN ISO 1182 and ISO EN 1716; meet to the standards.

Class A2: According to EN ISO 1182、EN ISO 1716 and EN ISO 13823; meet to the standards.

Class B、C、D: According to ISO EN 13823、EN ISO 11925-2; meet to the standards.

Class E: According to EN ISO 11925-2; meet to the standards.

Class F: According to EN ISO 11925-2; fail to the standards.

3.2 Classes of reaction to fire performance for floorings

Class A_FL1: According to EN ISO 1182 and ISO EN 1716; meet to the standards.

ClassA_FL2: According to EN ISO 1182、EN ISO 1716 and EN ISO 9239-1; meet to the standards.

ClassB_FL、C_FL、D_FL: According to EN ISO 9239-1、EN ISO 11925-2; meet to the standards.

ClassE_FL: According to EN ISO 11925-2; meet to the standards.

ClassF_FL: According to EN ISO 11925-2; meet to the standards.

3.3 Classes of reaction to fire performance for linear pipe thermal insulation products.

Class A_L1: According to EN ISO 1182 and ISO EN 1716; meet to the standards.

Class A_L2: According to EN ISO 1182、EN ISO 1716 and EN ISO 13823; meet to the standards.

Class B_L、C_L、D_L: According to ISO EN 13823、EN ISO 11925-2; meet to the standards.

Class E_L: According to EN ISO 11925-2; meet to the standards.

ClassF_L: According to EN ISO 11925-2; fail to the standards.

EN 13501-1 is similar with GB 8624:2006