USCAR3-4 SPECIFICATION FOR TESTING AUTOMOTIVE MINIATURE BULBS
Stabilized
03/15/2022
- Features
- Issuing Committee
- Content
- The procedures contained in this specification cover the laboratory testing of miniature incandescent bulbs for use in automotive illumination and signaling applications. The following tests shall be run whenever the following occurs:
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New bulb design
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Design or process change made to an existing bulb, which could affect the outcome of the test.
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The completion of one calendar year as noted in the following Test Schedule Table. Process control data is acceptable.
Test Title Yearly Physical Dimensions X Mean Spherical Candela X External Visual Examination X Crush X Thermal Shock X Bayonet Base Retention X Pin Removal X Wedge Base Retention X Lead Wire Bend X Lead Wire Pull X Natural Amber Color X Coated Amber Color -
Integrated Color
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Visual Color
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Point Color
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Color Maintenance and Coating Durability
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Amber Coating Chemical Resistance
X
X
XResonant Frequency Aged Resonant Frequency Salt Spray Wire Loop Pull X Outgassing/Heat Laboratory Life Accelerated Life X Luminous Intensity Maintenance X Vibration Durability Shock Aged Vibration Durability -
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- Pages
- 47
- Citation
- SAE International Specification, SPECIFICATION FOR TESTING AUTOMOTIVE MINIATURE BULBS, SAE Standard USCAR3-4, Stabilized March 2022, Revised December 2009, Issued August 1997, https://doi.org/10.4271/USCAR3-4.