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GB/T 6949-1998 煤的视相对密度测定方法

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基本信息
标准名称:煤的视相对密度测定方法
英文名称:Determination of apparent relative density of coal
中标分类: 矿业 >> 固体燃料矿 >> 煤炭分析方法
ICS分类: 采矿和矿产品 >> 煤
替代情况:GB/T 6949-1986;被GB/T 6949-2010代替
发布部门:国家质量技术监督局
发布日期:1998-12-08
实施日期:1999-05-01
首发日期:1986-10-09
作废日期:2011-06-01
主管部门:中国煤炭工业协会
提出单位:国家煤炭工业局
归口单位:全国煤炭标准化技术委员会
起草单位:煤炭科学研究总院西安分院
起草人:朱春笙、张科选
出版社:中国标准出版社
出版日期:1999-05-01
页数:平装16开, 页数:7, 字数:10千字
书号:155066.1-15802
适用范围

本标准规定了煤的视相对密度测定用的仪器设备、试剂、煤样制备、测定步骤、结果计算和精密度。本标准适用于无烟煤、烟煤、褐煤。

前言

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引用标准

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所属分类: 矿业 固体燃料矿 煤炭分析方法 采矿和矿产品 煤
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【英文标准名称】:Testmethodsforthedetectionandassessmentofphotochromism
【原文标准名称】:光致变色现象的检测和评定的试验方法
【标准号】:JISL0886-2005
【标准状态】:现行
【国别】:日本
【发布日期】:2005-01-20
【实施或试行日期】:
【发布单位】:日本工业标准调查会(JP-JISC)
【起草单位】:TechnicalCommitteeonConsumerLifeProducts
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:この規格は,染色した繊維製品のホトクロミズムの検出及び評価に対する試験方法について規定する。
【中国标准分类号】:W04
【国际标准分类号】:59_080_01
【页数】:8P;A4
【正文语种】:日语


Product Code:SAE J1962
Title:Diagnostic Connector Equivalent to ISO/DIS 15031-3:December 14, 2001
Issuing Committee:Vehicle E E System Diagnostic Standards Committee
Scope:This document supersedes SAE J1962 FEB1998, and is technically equivalent to ISO/DIS 15031-3:December 14, 2001. This document is intended to satisfy the requirements of an OBD connector as required by U.S. On-Board Diagnostic (OBD) regulations. The diagnostic connection specified in this document consists of two mating connectors, the vehicle connector and the external test equipment connector. This document specifies: a. The functional requirements for the vehicle connector. These functional requirements are separated into four principal areas: connector location/access, connector design, connector contact allocation, and electrical requirements for connector and related electrical circuits, b. The functional requirements for the external test equipment connector. These functional requirements are separated into three principal areas: connector design, connector contact allocation, and electrical requirements for connector and related electrical circuits.Differences from ISO Document. The ISO 15031-3 document is intended to satisfy the requirements of OBD requirements in countries other than the U.S., and includes functionality not required or not allowed in the U.S. Notable exceptions are: a. Proposed U.S. OBD regulations specify a connector location that is more restrictive than specified in this document. b. Proposed U.S. OBD regulations do not allow greater than 20 V at the SAE J1962 connector. Only the Type A connector as defined in this document is allowable. Differences between the documents are highlighted in the technical requirements sections of this document. Deleted text is highlighted with strikethrough and new text is highlighted with bold italic. NOTE - To maintain equivalency of the documents, a comma is used as a decimal marker for numeric values in this document.