SAE J2934 Laboratory Measurement of Tortuosity and Characteristic Lengths of Acoustical Materials

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Product Code:SAE J2934
Title:Laboratory Measurement of Tortuosity and Characteristic Lengths of Acoustical Materials
Issuing Committee:Acoustical Materials Committee
Scope: This SAE Recommended Practice describes a laboratory test procedure for measuring tortuosity , thermal and viscous characteristic lengths of acoustical materials for automotive and other ground transportation applications. The materials may consists of natural fibers, synthetic fibers or cellular foam materials. This method is based on measurement of acoustical quantities of the materials. Tortuosity , thermal and viscous characteristic lengths of the materials are then derived mathematically from the measured acoustical quantities.
Rationale: This SAE Recommended Practice describes a laboratory test procedure for measuring tortuosity , thermal and viscous characteristic lengths of acoustical materials for automotive and other ground transportation applications. The materials may consists of natural fibers, synthetic fibers or cellular foam materials. This method is based on measurement of acoustical quantities of the materials. Tortuosity , thermal and viscous characteristic lengths of the materials are then derived mathematically from the measured acoustical quantities.
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基本信息
标准名称:黄铜化学分析方法 原子吸收分光光度法测定铅量
中标分类: 冶金 >> 金属化学分析方法 >> 重金属极其合金分析方法
替代情况:被GB/T 5121.3-1996代替
发布日期:1900-01-01
实施日期:1986-02-01
首发日期:1900-01-01
作废日期:1900-01-01
出版日期:1900-01-01
页数:5页
适用范围

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前言

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所属分类: 冶金 金属化学分析方法 重金属极其合金分析方法
【英文标准名称】:Roadvehicles.Removableskipsforhydraulicarms.Functionaldimensionsandgeneralrequirements.
【原文标准名称】:道路车辆.液压悬臂用可卸换翻斗.功能尺寸和一般要求
【标准号】:NFR17-108-1993
【标准状态】:作废
【国别】:法国
【发布日期】:1993-12-01
【实施或试行日期】:1993-12-20
【发布单位】:法国标准化协会(AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:
【中国标准分类号】:T22
【国际标准分类号】:43_040_60
【页数】:13P;A4
【正文语种】:其他