【英文标准名称】:MethodsofDesignatingandMeasuringAperturesandRelatedQuantitiesPertainingtoPhotographicObjectivesandProjectionLenses
【原文标准名称】:摄影镜头和放映机镜头的孔径和相关数值的标识和测量方法
【标准号】:ANSIPH3.29-1971
【标准状态】:作废
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【发布单位】:美国国家标准学会(US-ANSI)
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Product Code:SAE J229
Title:Service Brake Structural Integrity Test Procedure-Passenger Car
Issuing Committee:Road Test Procedures Standards Committee
Scope:This SAE Recommended Practice establishes a method of evaluating the structural integrity of the entire brake system of all passenger cars under extreme braking conditions.The main purpose of this document is to evaluate the structural integrity of a vehicle's braking system. However, other areas, such as the steering or suspension system, may also be evaluated during the test, providing that the criteria and procedure detailed in the following sections are not modified in any way. For repeatability, it is recommended that a brake apply device be utilized whenever possible, since it will eliminate the variations in application times and efforts of different operators.