EN 407: Protective gloves against thermal risks

DIN EN 407:2020: Protective gloves and other hand protection equipment against thermal risks (heat and/or fire)

Scope of application

This standard specifies the thermal properties of gloves for protection against heat and/or fire.

Classification and requirements

All gloves must comply with all applicable requirements of EN ISO 21420. The type and degree of protection are indicated by a pictogram, with numbers 1 to 4, referring to specific protective properties. According to the area of use, only the test procedures relevant to the application must be carried out. If an "X" is indicated instead of one of these numbers, it means that this protective property has not been tested.

test	Performance index 1	Performance index 2	Performance index 3	Performance index 4
Flame formation (afterburning and afterglow time in sec.)	≤15 Not inv.	≤10 ≤120	≤3 ≤25	≤2 ≤5
Contact heat resistance (contact temperature in °C and limit time in sec.)	100 ≥15	250 ≥15	350 ≥15	500 ≥15
Convection heat resistance (heat transfer index in sec)	≥4	≥7	≥10	≥18
Resistance to radiant heat (in sec.)	≥7	≥20	≥50	≥95
Resistance to number of small liquid metal splashes	≥10	≥15	≥25	≥35
Resistance to large quantities of liquid metal in g	30	60	120	200

Fire resistance

Performance index 1-4. Time in seconds that the material continues to burn or glow after the flame has been removed from the test specimen. The seams of the glove must not disintegrate after a burn time of 15 seconds.

Contact heat resistance

In the temperature range of 100-500 °C, the user does not feel pain for at least 15 seconds. If an EN level 3 or higher is achieved, the product must also meet at least EN level 3 in the fire resistance test, since

Convective heat resistance

Means the length of time a glove can retard heat transfer from a flame. A performance level is only given if performance levels 3 or 4 are achieved in the fire resistance test.

Resistance to radiant heat

The length of time a glove can retard heat transfer from a radiant heat source. A performance level is only given if performance levels 3 or 4 are achieved in the fire resistance test.

Resistance to small liquid metal splashes

Number of liquid metal droplets required to bring the glove to a specific temperature. A performance level is only given if performance levels 3 or 4 are achieved in the fire resistance test.

Resistance to large quantities of liquid metal

Means the weight of molten metal required to initiate smoothing or perforation of a skin imitation placed directly behind the test glove. The test is considered failed if metal droplets adhere to the glove material or the test sample ignites.