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This information report is being issued to cover conversions from inch-pound units to those in the System International (SI) approach. Since all conversions cannot possibly be covered, the list contained in Section 4 is composed of the lighting oriented items which are found in SAE or Motor Vehicle Safety Standard (MVSS) in North America. This reference is to FMVSS in the United States and to CMVSS in Canada. The purpose of this report is to give guidance for uniformity particularly to those organizations, governmental or otherwise, who may in the future have occasion to express present inch-pound units in metric or SI terms.

This standard applies to the design and testing of sealed beam headlamp assemblies, including the functional parts which are mounted on the exterior of a vehicle. The standard does not apply to sealed beam units which are covered in SAE J571, J579, and J1132.

This standard applies to the design of sealed beam headlamp assemblies including the functional parts, except the sealed beam units which are covered in SAE J571d (June, 1976), J579c (December, 1974), and J1132 (January, 1976).

This specification applies to the functional parts of the headlamp and does not include decorative doors or bezels which are not required for retaining the sealed beam unit. The following sections from SAE J575 are a part of this standard. Section B—Samples for Test Section D—Laboratory Facilities Section E—Vibration Test Section H—Corrosion Test

This specification applies to the functional parts of the headlamp and does not include decorative doors or bezels which are not required for retaining the sealed beam unit.

This standard applies to the design of sealed beam headlamp assemblies including the functional parts, except the sealed beam units which are covered in SAE J571, J579, and J1132.

This specification applies to the functional parts of the headlamp and does not include decorative doors or bezels which are not required for retaining the sealed beam unit. The following sections from SAE J575 are a part of this standard. Section B—Samples for Test Section D—Laboratory Facilities Section E—Vibration Test Section H—Corrosion Test

This standard applies to the design of sealed beam headlamp assemblies including the functional parts, except the sealed beam units which are covered in SAE J579.

This SAE Recommended Practice provides the lighting function identification codes for use on all passenger cars and trucks.