【英文标准名称】:Chemicaltestsforrawandvulcanizedrubber-Methodforpreparationandexaminationofwaterextract
【原文标准名称】:生橡胶和硫化橡胶的化学试验.水提取物的制备和检验方法
【标准号】:BS7164-10-1994
【标准状态】:现行
【国别】:英国
【发布日期】:1994-10-15
【实施或试行日期】:1994-10-15
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:天然橡胶;硬化材料;铵无机化合物;试验条件;电导测量法;报告;硫酸盐;pH值测定;定量分析;强碱;试验设备;合成橡胶;萃取分析法;酸;含量测定;水解萃取法;硫化橡胶;试样制备;化学分析和试验;氯化物
【英文主题词】:Acids;Alkalis;Ammoniuminorganiccompounds;Aqueousextractionmethods;Chemicalanalysisandtesting;Chlorides;Conductimetricmethods;Determinationofcontent;Extractionmethodsofanalysis;Naturalrubber;pHmeasurement;Quantitativeanalysis;Reports;Specimenpreparation;Sulfates;Syntheticrubber;Testequipment;Testingconditions;Vulcanizedmaterials;Vulcanizedrubber
【摘要】:ThisPartofBS7164describesamethodforthepreparationandexaminationofwaterextract.NOTE.Waterextractsmoreorlesscompletelymanynon-rubberconstituentsofrawnaturalrubber,suchasproteins,variousnaturallyoccurringmineralsaltsandothersolublematerial.Itextractsemulsifiers,stabilizersandcoagulantsfromrawsyntheticrubber.Fromcompoundedrubbers,waterextractsglue,gelatine,andotherproteins,certainaccelerators,starch,glycerine,alkalis,soaps,calciumsulfate,andnon-volatileresiduesfromblowingagents,suchassodiumcarbonateandsodiumchloride.
【中国标准分类号】:G34;B72
【国际标准分类号】:83_060
【页数】:8P.;A4
【正文语种】:英语


Product Code:SAE AS452
Title:Oxygen Mask Assembly, Demand and Pressure Breathing, Crew (NONCURRENT Jan 1999)
Issuing Committee:A-10 Aircraft Oxygen Equipment Committee
Scope:The purpose of this standard is to establish optimum standards for crew demand and pressure-breathing oxygen mask assemblies for use by crew members in civil aircraft. This standard covers both general type and quick-donning type mask assemblies in the following classes: a. Class A, oronasal, demand b. Class B, oronasal, pressure-demand c. Class C, full face, demand d. Class D, full face, pressure-demand