Ansi/ul 94 VTM vertical burning test for thin materials

ANSI/UL 94 Material Flammability Test –  Standard name

ANSI/UL 94Test for Flammability of Plastic Materials for Parts in Devices and Appliances

ANSI/UL 94 Standard burning test method for plastic parts of equipment and electrical appliances .

ANSI/UL 94 Material Flammability Test  –  Overview of standards

These requirements cover flammability testing of polymeric materials used for equipment and appliance components . They are intended as a preliminary indication of their acceptability to flammability for a particular application .

These requirements cover tests for flammability of polymeric materials used for parts in devices and appliancesThey are intended to serve as a preliminary indication of their acceptability with respect to flammability for a particular application.

ANSI/UL 94 VTM Vertical combustion test of thin materials  – Test standard

When 20mm During vertical combustion test , Due to the thin test material 、 Distortion 、 Shrink or burn the fixture and make it impossible to , This test method is the test method specified for this material . Such materials also have a length of 200mm, Width is 50mm Sample of , Wound longitudinally around 13mm Physical properties on reels of diameter .

This test is intended to be performed on materialsthat due to their thinnesseither distortshrinkand/or are consumed up to the holding clamp when tested using the test described in the 20 mm Vertical Burning Test.This test shall only be performed after it has been determined that the samples cannot meet the requirements of the 20-mmVertical Burning Test The materials shall also possess longitudinally around a 13 mm diameter mandrel

ANSI/UL 94 Relevant test reference standards

－ ASTM D 618 Testing plastics and insulating materials adjustment methods

－ ASTM D 789 determine PA Relative viscosity , Melting point , Method for determining moisture content

－ ASTM E 162 Determination of surface combustion properties of materials by radiant heat source

－ ASTM E 437 Industrial wire cloth and screen ( Square hole series ) standard

－ ASTM D 3195 Standard Specification for rotameter calibration

－ ASTM D 5025 Standard for laboratory burners for small-scale combustion tests of plastics

－ ASTM D 5207 Small scale combustion test on plastic materials

come from GF2022