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Product Code:SAE J1030
Title:Maximum Sound Level for Passenger Cars and Light Trucks
Issuing Committee:Vehicle Sound Level Advisory Group
Scope:This SAE Recommended Practice establishes the test procedures, environment, and instrumentation for determining the maximum exterior sound level of passenger cars, multipurpose vehicles, and light trucks having a gross vehicle mass (weight) rating of 4540 kg (10 000 lb) or less.This document is intended for use when the maximum sound generating capability of any applicable vehicle is to be measured. The test procedure is characterized by having fixed terminal conditions (attainment of rated engine speed at a fixed end point on the test site) in contrast to the procedure of SAE J986 NOV81, Sound Level for Passenger Cars and Light Trucks, which has fixed initial conditions (specified initial vehicle speed at a fixed acceleration point on the test site). Full-throttle acceleration and closed-throttle deceleration of the vehicle are included in both procedures.Sound levels determined in accordance with this document are essentially independent of transmission and final-drive ratios for a vehicle family having otherwise identical characteristics. Thus, this document is particularly applicable to development testing of vehicle families or to test development where vehicle performance differences are to be minimized.【英文标准名称】:Reverseosmosisdrinkingwatertreatmentsystems
【原文标准名称】:逆向渗透饮用水处理系统
【标准号】:ANSI/NSF58(i56)-2011
【标准状态】:现行
【国别】:美国
【发布日期】:2011
【实施或试行日期】:
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:ANSI
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:Drinkingwaterinstallations;Drinkingwatertreatment;Foodproducts;Personalhealth;Protection;Reverseosmosis;Water;Watertreatment
【摘要】:
【中国标准分类号】:Q81
【国际标准分类号】:13_060_20
【页数】:
【正文语种】:英语