【英文标准名称】:TestMethodsforCarbonBlack-SurfaceAreabyMultipointB.E.T.NitrogenAdsorption
【原文标准名称】:炭黑的试验方法.用多点B、E、T、氮吸收法测定表面积
【标准号】:ASTMD4820-1999
【标准状态】:作废
【国别】:美国
【发布日期】:1999
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:ASTM
【标准类型】:()
【标准水平】:()
【中文主题词】:试验方法;测试方法;氮;表面;表面吸附;烟灰
【英文主题词】:testmethods;nitrogen;adsorption;soot;surfaces
【摘要】:
【中国标准分类号】:G49
【国际标准分类号】:83_040_20
【页数】:
【正文语种】:英语


Product Code:SAE J2561
Title:Bluetooth Wireless Protocol for Automotive Applications
Issuing Committee:Vehicle Architecture For Data Communications Standards
Scope:This SAE Information Report defines the functionality of typical Bluetooth applications used for remotely accessing in-vehicle automotive installations of electronic devices. Remote access may be achieved directly with on-board Bluetooth modules, or indirectly via a custom designed gateway that communicates with Bluetooth and non-Bluetooth modules alike.Access to the vehicle, in the form of two-way communications, may be made via a single master port, or via multiple ports on the vehicle. The Bluetooth technology may also be used in conjunction with other types of off-board wireless technology.This report recommends using a message strategy that is already defined in one or more of the documents listed in 2.1.1, 2.1.4, 2.1.5, and 2.1.6. Those strategies may be used for some of the typical remote communications with a vehicle. It is recognized, however, that there may be specific applications requiring a unique message strategy or structure.This document depicts five different levels of security measures that may be required for the various types of communication.The EMC test requirements for the implementation of this protocol are recommended.This report makes no attempt to define all of the applications wherein the Bluetooth protocol may be utilized. A number of use cases are listed in Section B.1 of the appendix to serve as representative applications, e.g., credit card transactions, vehicle diagnostics, toll booth collection, flash reprogramming, etc.