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MIL-HDBK-1250A

作者:标准资料网 时间:2024-05-17 17:30:23  浏览:9285   来源:标准资料网
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MIL-HDBK-1250A, DOD HANDBOOK, CORROSION PREVENTION AND DETERIORATION CONTROL IN ELECTRONIC COMPONENTS AND ASSEMBLIES (18 AUG 1995) [SUPERSEDING MIL-STD-1250A)., This standard establishes minimum requirements for procedures, materials and systems for protecting electronic components in DoD systems and assemblies from adverse environments. Protective measures shall be sufficient to maintain performance characteristics within specified limits both during and after exposure to moisture, high and low temperatures, corrosive gases, chemicals and microbial (fungal) attack. This standard does not deal with protection against damage from stress, shock, vibration or nuclear, biological and chemical (NBC) contamination. It is not concerned with electrical or mechanical design except insofar as design details affect susceptibility to corrosion. Provisions for prevention of deterioration shall apply to housings, chassis, hardware and similar parts which are assembled into electronic equipment, as well as to electronic and electro-mechanical components. Unless specifically mentioned in the item specification or drawing, this standard does not apply to standard commercial equipment.

MIL-HDBK-1250A (NOTICE 1) DOD HANDBOOK FOR CORROSION PREVENTION AND DETERIORATION CONTROL IN ELECTRONIC COMPONENTS AND ASSEMBLIES (24 OCT 2001). MIL-HDBK-1250 is inactive for new design and is no longer used, except for replacement purposes.

MIL-HDBK-1250A (NOTICE 2), DOD HANDBOOK, CORROSION PREVENTION AND DETERIORATION CONTROL IN ELECTRONIC COMPONENTS AND ASSEMBLIES (30 NOV 2006)., MIL-HDBK-1250A, dated 24 October 2001, remains inactive for new design; however, the document is valid for use.

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【英文标准名称】:StandardTestMethodforApparentTackofPrintingInksandVehiclesbyaThree-RollerTackmeter
【原文标准名称】:用铀墨粘度计测定印刷油墨和媒液表观粘度的标准试验方法
【标准号】:ASTMD4361-2009
【标准状态】:现行
【国别】:美国
【发布日期】:2009
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:D01.56
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:apparenttack;printinginks;splittingforces;tack;tackmeters;three-rollertackmeters;vehicles;Apparenttack;Ink;Inkometermethod;Printinginks/vehicles;Tack;Three-rollertackmeter
【摘要】:Tackofprintinginkscontrolstheirhigh-speedtransferproperties,asmanifestedbythroughputinrollmilling,pickingofpaperduringprinting,andwettrappinginmulticolorprinting.Althoughanapparenttackmeasurementdoesnotcompletelypredictthetransferperformanceofaninkoravehicle,itprovidesameaningfulparameterforqualitycontrol,development,andresearch.Anumberofthree-rollertackmetersareavailablethatdifferindesignfeaturessuchasrollerweight,geometry,andcompositionofthedistributionsystem.Instrumentsofdifferenttypesdonotgivethesameapparenttackreadings.Instrumentsofthesametypewillonlygiveapparenttackreadingswithintolerance,providedthattheyaremaintainedandcalibratedproperlyandinthesamemanner.1.1Thistestmethodcoverstheprocedurefordeterminingtheapparenttackofprintinginksusingathree-rollertackmeter.1.2Thistestmethodisapplicabletoallpaste-typeprintinginksandvehiclesthatareessentiallynonvolatileunderordinaryroomconditions,providedthatanyelastomercoveredrollersinthetackmeterareresistanttoattackbytheparticularinkorvehiclechemistry.Differentelastomersmayberequiredfordifferentinkorvehiclechemistries.1.3Thistestmethodcoversthree-rollertackmetersoftwodifferentgeometries,referredtoasGeometryAandGeometryB.1.4ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:A17
【国际标准分类号】:87_080
【页数】:7P.;A4
【正文语种】:英语


基本信息
标准名称:机械制造工艺方法分类与代码 总则
中标分类: 机械 >> 加工工艺 >> 加工工艺综合
发布部门:机械标准化研究所
发布日期:1992-07-17
实施日期:1993-07-01
首发日期:1900-01-01
作废日期:1900-01-01
归口单位:机械标准化研究所
出版日期:1900-01-01
页数:3 页
批文号:机电科标[1992]1158号
适用范围

本标准规定了机械制造工艺方法分类的基本原则、代码结构和工艺方法大类与中类的划分。 本标准适用于机械制造业中计算机辅助工艺管理和工艺设计。 本标准规定的代码不适用于在图样上标注。

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所属分类: 机械 加工工艺 加工工艺综合

版权声明:所有资料均为作者提供或网友推荐收集整理而来,仅供爱好者学习和研究使用,版权归原作者所有。
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