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BS 2782-4 Method 434B-1977 塑料试验方法.第4部分:化学性能.试验方法434B:用氯仿萃取物紫外线吸收法测定聚烯烃混合料抗氧化剂

作者:标准资料网 时间:2024-05-03 19:21:54  浏览:9265   来源:标准资料网
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【英文标准名称】:Methodsoftestingplastics-Chemicalproperties-Determinationofantioxidantsinpolyolefincompoundsbyultra-violetabsorptionofthechloroformextract
【原文标准名称】:塑料试验方法.第4部分:化学性能.试验方法434B:用氯仿萃取物紫外线吸收法测定聚烯烃混合料抗氧化剂
【标准号】:BS2782-4Method434B-1977
【标准状态】:现行
【国别】:英国
【发布日期】:1977-09-30
【实施或试行日期】:1977-09-30
【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】:聚烯烃;溶剂萃取方法;抗氧化剂;萃取分析法;氯仿;高聚物;吸收测量法;校准;含量测定;紫外线辐射;化学分析和试验;塑料
【英文主题词】:Absorptiometry;Antioxidants;Calibration;Chemicalanalysisandtesting;Chloroform;Determinationofcontent;Extractionmethodsofanalysis;Plastics;Plasticsandrubbertechnology;Polymers;Polyolefins;Solventextractionmethods;Ultravioletradiation
【摘要】:Thismethoddescribesaprocedureforthedeterminationofcertainantioxidantsinpolyolefincompoundsbymeasuringtheultra-violetabsorbanceofachloroformextractofthecompound.
【中国标准分类号】:G31
【国际标准分类号】:83_080_20
【页数】:4P;A4
【正文语种】:英语


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MIL-HDBK-290, MILITARY HANDBOOK: STANDARD ELECTRICAL SYMBOL LIST (22 AUG 1986)., This handbook covers standard symbol numbers which are used in the preparation, revision, and interpretation of ship's electrical and electronic system drawings.Product Code:SAE J1783
Title:Ship Systems and Equipment--Selection of Hydraulic Directional Control Valves
Issuing Committee:Ship Fluid Systems Committee
Scope:This SAE Recommended Practice provides the designer with guidance for the selection of directional control valves for use in the hydraulic systems of surface ships and submersibles. This guidance includes use of standard valves and interfaces, minimum envelopes that should be reserved to permit interchangeability, environmental considerations, and general technical requirements.

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