【英文标准名称】:Testsforgeometricalpropertiesofaggregates.Determinationofparticleshape.Flakinessindex
【原文标准名称】:集料的几何性能试验.颗粒形状的测定.片状指数
【标准号】:BSEN933-3-2012
【标准状态】:现行
【国别】:英国
【发布日期】:2012-02-29
【实施或试行日期】:2012-02-29
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:IEC/TC55
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:Aggregates;Analysis;Characteristics;Construction;Constructionmaterials;Definitions;Designations;Determination;Dimensions;Geometric;Geometricalproperties;Grainshapes;Grainsize;Grainsizing;Grainstructures;Gravel;Materialstesting;Measurement;Measuringtechniques;Mineralaggregates;Naturalstones;Particlesizedistribution;Particlesizemeasurement;Particulatematerials;Properties;Ratings;Roadstoneaggregates;Rocks;Rubble;Screening;Shape;Stone;Testing
【摘要】:
【中国标准分类号】:Q13
【国际标准分类号】:91_100_15
【页数】:16P;A4
【正文语种】:英语
基本信息
| 标准名称： | 防爆电动葫芦 |
| 英文名称： | explosion-proof hoists |
| 中标分类： |
机械 >>
通用机械与设备 >>
起重机械 |
| ICS分类： |
材料储运设备 >>
起重设备 >>
其他起重设备
|
| 替代情况： | 替代JB/T 10222-2001 |
| 发布部门： | 中华人民共和国工业和信息化部 |
| 发布日期： | 2011-08-15 |
| 实施日期： | 2011-11-01 |
| 首发日期： | |
| 作废日期： | |
| 归口单位： | 全国起重机械标准化技术委员会 |
| 起草单位： | 天津起重设备有限公司、北京起重运输机械研究所等 |
| 出版社： | 机械工业出版社 |
| 出版日期： | 2011-11-01 |
适用范围
本标准规定了防爆电动葫芦的术语和定义、分类和分组、基本参数、技术要求、试验方法、检验规则、标志、包装、运输和贮存。
本标准适用于在有爆炸性气体环境1区、2区和/或可燃性粉尘环境21区、22区中工作的防爆电动葫芦。
前言
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目录
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引用标准
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所属分类： 机械 通用机械与设备 起重机械 材料储运设备 起重设备 其他起重设备
Product Code:SAE AS5781
Title:Retainers (Backup Rings), Hydraulic and Pneumatic, Polytetrafluoroethylene Resin, Single Turn, Scarf-Cut, for Use in AS4716 Glands
Issuing Committee:A-6c2 Seals Committee
Scope:This SAE Aerospace Standard (AS) covers scarf-cut polytetrafluoroethylene (PTFE) retainers (backup rings) for use in glands in accordance with AS4716. They are for use in hydraulic and pneumatic system components as anti-extrusion devices in conjunction with O-rings, packings and other elastomeric seals for static and dynamic applications.Because of the construction of groove dimensions, backup rings specific to rod applications are designated 驴R驴 - Rod (Female), backup rings specific to piston applications are designated 驴P驴 - Piston (Male). Piston and rod types of virgin pigmented PTFE are also identified by color code which also distinguishes parts to this standard from those made from virgin PTFE to other standards.Backup rings specified herein have been designed for a temperature range of -65 to 275 掳F (-54 to 135 掳C) and a nominal operating pressure of 3000 psi (20.7 MPa) for code 09 material (AMS 3678/9). Alternate materials to AMS 3678 are offered for more arduous operating conditions.This specification includes material tests but does not include hydraulic or pneumatic performance tests.