FMVSS 302 Flammability test to Motor Vehicle Interior materials

With the progress of polymer materials, a variety of plastic products have become the necessities of people's homes and public places. On public transportation vehicles, seats, interior decorations, poles, armrests and billboards are all made of plastic.These products are flammable polymer materials, which pose a fire hazard if not treated as flame retardants.

FMVSS302 (49CFR571.302) is suitable for passenger cars, multi-purpose passenger cars, trucks and buses.FMVSS 302 sets out the requirements for the fire performance of interior materials in vehicles with the aim of reducing deaths and injuries due to vehicle fire, particularly from ignition sources such as matches and cigarettes.

CASfire Technical Co.,Ltd have rich experience to provide FMVSS 302 Flammability test to Motor Vehicle  Interior materials.

FMVSS 302: Federal Motor Vehicle Safety Standard 302

FMVSS302 Flammability of Interior materials

FMVSS 302 Scope：

This standard specifies burn resistance requirements for materials used in the occupant compartments of motor vehicles

FMVSS 302 Purpose.：

The purpose of this standard is to reduce the deaths and injuries to motor vehicle occupants caused by vehicle fires, especially those originating in the interior of the vehicle from sources such as matches or cigarettes.

FMVSS 302 Application：

This standard applies to passenger cars, multipurpose passenger vehicles, trucks, and buses.

FMVSS 302 Test Procedure：

a.       Mount the specimen so that both sides and one end are held by the U-shaped frame, and one end is even with the open end of the frame. Where the maximum available width of a specimen is not more than 51 mm, so that the sides of the specimen cannot be held in the U-shaped frame, place the specimen in position on wire supports as described in S5.1.3, with one end held by the closed end of the U-shaped frame.

b.       Place the mounted specimen in a horizontal position, in the center of the cabinet.

c.       With the flame adjusted according to S5.1.4, position the bunsen burner and specimen so that the center of the burner tip is 19 mm below the center of the bottom edge of the open end of the specimen.

d.       Expose the specimen to the flame for 15 seconds.

e.       Begin timing (without reference to the period of application of the burner flame) when the flame from the burning specimen reaches a point 38 mm from the open end of the specimen.

f.         Measure the time that it takes the flame to progress to a point 38 mm from the clamped end of the specimen. If the flame does not reach the specified end point, time its progress to the point where flaming stops.

g.       Calculate the burn rate from the formula: B = 60 × (D/T)

Where:

B = Burn rate in millimeters per minute

D = Length the flame travels in millimeters, and

T = Time in seconds for the flame to travel D millimeters.

FMVSS 302 Flammability of Interior materials -  Relative Standard

GB 8410 Flammability of automotive interior materials

SAE J369: Flammability of Polymeric Interior Materials Horizontal Test Method

TL1010: Flammability

ISO 3795:Road vehicles, and tractors and machinery for agriculture and forestry -- Determination of burning behaviour of interior materials

DIN 75200:Determination of burning behaviour of interior materials in motor vehicles

95/28/EC: The burning behaviour of materials used in the interior construction of certain categories of motor vehicles”, and is intended to ensure that they meet fire safety standards

NF P 92-505: Safety against fire - Building materials - Reaction to fire tests - Test used for thermal melting materials - Dripping test.

U.T.A.C 18-502 T1: burning behaviour of materials used in the interior construction of certain categories of motor vehicles

BMW N 60121.0: BMW standard

DBL 5307: Benz Standard

GM L-T06-302G-79: GE Standard

Mitsubishi ES-X60410: Oxygen Index

VW TL 1010: burning behaviour

Volvo STD 5031: burning behaviour

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From JJ2022