NF P 92-505 Safety Against Fire - Building Materials - Reaction to Fire Tests - Test Used for Thermal Melting Materials - Drip Test

In the NF P92-505 standard, which is a French standard, a method is defined for the electric radiator drip test used in melting materials. If melt droplets appear in the tests performed according to the other French standards NF P92-501 and NF P92-503 whether or not combustion occurs, the test method defined in this standard must be applied.

According to fire test results, fire classification is made as follows:

• M1 value is not flammable (0
• M2 value indicates low flammability (2.5
• M3 value indicates moderate flammability (15
• M4 value indicates flammability (q>50)

In this classification, the material's contribution to fire is primarily based on ignition time. Generally, the test methods described in NF P92-504 and NF P92-505 standards are supplementary tests that should be performed when certain unusual situations (such as the falling of burning droplets) are observed. In this case, the results obtained from both test methods are used to determine the M rating.

If specific and unusual sample behavior is observed during testing, additional complementary testing may be required. These tests are included in other French standards that are close to this standard and used for similar purposes:

• NF P 92-501 Safety against fire - Building materials - Reaction to fire tests - Used for rigid material or flexible materials thicker than 5 mm
• NF P 92-503 Safety against fire - Building materials - Reaction to fire tests - Electric burner test used for flexible materials
• NF P 92-504 fire safety - Building materials - Reaction to fire tests - Flame resistance test and flame propagation speed
• NF P 92-507 Fire safety - Building - Interior equipment materials - Classification by reaction to fire

Within the scope of NF P92-505 standard, our organization, with its trained and expert staff and advanced technological equipment, among the numerous test, measurement, analysis and evaluation studies it has given for businesses in various sectors,

It also provides test (drop test) test services for fire safety, building materials, fire reaction tests, thermal melting materials.