ISO 4182:1999 PDF

Scope: This International Standard specifies a method for measuring variations in the dipped-beam inclination of motor vehicle headlamps, in relation to the initial inclination, caused by changes in vehicle attitude due to loading. This measurement method may be used particularly during vehicle type approval tests. Loading conditions of vehicles are specified in annex A. They are to be used except when legal regulations require different loading conditions. Annex B establishes a classification of headlamps, and gives examples of measurement methods applicable according to the classification. Annex C gives a photometric method of determining the position of a point of the conventional cut-off, which is complementary to one of the measurement method examples in annex B. This International Standard is applicable to motor vehicles as defined in ISO 3833.

ISO 4182:1999 history

1999 ISO 4182:1999 Motor vehicles - Measurement of variations in dipped-beam headlamp angle as a function of load
1986 ISO 4182:1986 Motor vehicles; Measurement of variations in dipped-beam headlamp angle as a function of load
1979 ISO 4182:1979 Road vehicles — Motor vehicles — Measurement of variation of passing beam inclination as a function of load