Product Code:SAE AS8879
Title:Screw Threads - Unj Profile, Inch Controlled Radius Root With Increased Minor Diameter
Issuing Committee:E-25 General Standards For Aerospace And Propulsion Systems
Scope:This SAE Aerospace Standard (AS) specifies the characteristics of screw threads - UNJ profile inch series, including a mandatory controlled radius as specified in Table 1 at the root of the external thread. The minor diameter of both external and internal threads provides a basic thread height of .5625H to accommodate the external thread maximum root radius. The following detailed design requirements are included:a.Screw threads - UNJ basic profile and design profiles.b.Standard series of diameter-pitch combinations for nominal thread diameters from 0.060 to 6.000 inches.c.Standard thread classes and form tolerances.d.Formulae for thread dimensions and tolerances.e.Method of designating UNJ threads.f.Tables for selected diameter-pitch combinations for close tolerance mechanical thread applications.g.Tables for screw thread - UNJ profile thread limit dimensions.【英文标准名称】:Pulps-Preparationoflaboratorysheetsforphysicaltesting-Part1:Conventionalsheet-formermethod
【原文标准名称】:纸浆.物理试验用实验室纸张的制备.第1部分:常规纸张成型法
【标准号】:ISO5269-1-2005
【标准状态】:现行
【国别】:国际
【发布日期】:2005-02
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/TC6
【标准类型】:()
【标准水平】:()
【中文主题词】:试验;物理试验;材料试验;物理性能;生产;测定;物理的;纤维;试样制备;试样;纸;纸浆;薄板材;试验装置;板;特性
【英文主题词】:Determination;Fibres;Laboratorysheets;Materialstesting;Paper;Paperpulp;Physical;Physicalproperties;Physicaltesting;Plates;Production;Properties;Pulp;Sheets;Specimenpreparation;Testspecimens;Testing;Testingdevices
【摘要】:ThispartofISO5269specifiesamethod,usingaconventionalsheetformer,forthepreparationoflaboratorysheetsofpulpforthepurposeofcarryingoutsubsequentphysicaltestsonthesesheetsinordertoassesstherelevantpropertiesofthepulpitself.ThispartofISO5269isapplicabletomostkindsofpulp.Itisnotsuitableforsomepulpswithverylongfibres,suchasthosemadefromunshortenedcotton,flaxandsimilarmaterials.Thismethodisnotsuitableforthepreparationoflaboratorysheetsforthedeterminationofdiffusebluereflectancefactor(ISObrightness)inaccordancewithISO3688.WARNING—Whenlong-fibredpulpisusedintheunshortenedform,thesheetformationmaynotalwaysbesatisfactory.
【中国标准分类号】:Y30
【国际标准分类号】:85_040
【页数】:7P;A4
【正文语种】:英语