Injury Level

Proposed Tolerance Levels

Equivalent Resultant Acceleration

Equivalent AIS

Equivalent

Legislation

Equivalent

Euro NCAP

KN

(g)

Resultant Acceleration

(g)

Resultant Acceleration

(g)

0

(No Skull fracture)

<2.2

Less than 50g

-

-

-

1

(No Skull fracture)

<2.2

Less than 50g

-

-

-

2

(Minor Depressed Skull Fracture)

2.2 – 5.5

50 – 125g

2 /3

FMVSS 208

80g 3ms

80g 3msec

Red

3

(Major Depressed Skull Fracture)

>5.5

Greater than 125g

4

-

-

4

5

-

-