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GB/T 42998-2023 家具产品及其材料中禁限用物质测定方法 醛酮类化合物
本文件描述了家具产品及其材料中醛酮类化合物的高效液相色谱测定方法。
本文件适用于家具产品及其原材料中释放的醛酮类化合物的测定。...2023-10-18 06:24:01浏览:6
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IEC PAS 62958-2015 家用洗衣机--微生物污染量的测定方法 Clothes washing machines for household use - Method for measuring the microbial contamination reduction
This Publicly Available Specification (PAS) specifies a test method for measuring the reduction of microbial contamination in clothes washing machines and of the possible cross contamination to uncontaminated load.<br />NOTE A significant differentiation in microorganism contamination reduction capability of washing machines can be expected at wash temperature not higher than 40 °C.<br />This PAS applies to clothes washing machines for household use, with or without heating devices utilising cold and/or hot water supply. It also covers washing machines which specify the use of no detergent for normal use. This PAS applies also to washing machines for communal use in blocks of flats or in launderettes.<br />This PAS does not deal with professional washing machines nor with commercial laundry operations associated with food service, hospital linens or other non-residential applications. It also does not address the needs of persons with specific health conditions requiring special sanitization and/or disinfection techniques.<br />This PAS does not specify safety requirements and does not deal with performance of washing machines measured under IEC 60456 nor with effects on fabrics....
2023-10-13 06:36:01浏览:6
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JIS B2005-2-4-2019 阀门的容量系数的测定方法--第2-4部分:固有流量特性和可调比 Industrial-process control valves -- Part 2-4: Flow capacity -- Inherent flow characteristics and rangeability
JIS B2005規格群のこの部は, 全ての種類の工業プロセス調節弁にっいて適用し,代表的な調節弁の固有流量特性及び固有レンジアビリテイの表し方について規定する。...
2023-10-08 20:36:01浏览:10
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GB/T 43220-2023 固体生物质燃料中砷的测定方法
本文件描述了氢化物发生-原子荧光光谱法和氢化物发生-原子吸收法测定固体生物质燃料中砷的方法提要试剂和材料﹑仪器设备样品、试验步骤、结果计算和表述、方法的精密度和试验报告。
本文件适用于固体生物质燃料中砷的测定。...2023-09-29 04:24:01浏览:11
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YY/T 1913-2023 医用聚碳酸酯材料中2,2-二(4-羟基苯基)丙烷(双酚A)残留量测定方法
本文件描述了医用聚碳酸酯材料中22-二(4-羟基苯基)丙烷(双酚A)残留量测定方法。
本文件适用于医用聚碳酸酯材料中22-二(4-羟基苯基)丙烷(双酚A)残留量测定。...2023-09-25 22:36:01浏览:13
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ASTM D8163-2017 建筑、船舶、维修、商业及工业涂料着色剂和主要成分测定方法 Standard Test Method for Determination of Strength of Colorants and Bases for Architectural,Marine,Maintenance,Commercial,and Industrial Coatings
1.1 This test method covers the determination of strength of colorant dispersions, colored and white bases, for architectural, marine, maintenance, commercial, and industrial coatings. 1.2 This test method applies to colorant dispersions and colored and white bases regardless of the methods used to disperse these materials. 1.3 The resultant test value is in terms of percent strength in which a material stronger than standard is implied by values larger than 100 % and weaker than standard is implied by values less than 100 %. The value of 100 % implies exact strength conformance to the test method. 1.4 This test method is suitable for the determination of strength when tolerances are set about standards that are prepared either by weight concentration or volume concentration. 1.5 The test result is empirically determined. The user determines and supplies the standard for strength of the product under test and the test result is relative to that supplied standard. 1.6 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard. 1.7 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.8 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee....
2023-09-20 21:00:01浏览:10
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GB/T 35210.2-2020 页岩甲烷等温吸附测定方法 第2部分:重量法 Determination methods of methane isothermal adsorption of shale--Part 2:Gravimetric method
GB/T 35210的本部分规定了利用重量法进行页岩甲烷等温吸附测定的方法。<br />本部分适用于页岩对甲烷气体吸附能力的测定,其他岩石类型可参照执行。...
2023-09-20 05:36:02浏览:11
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GB/T 42670-2023 炭素材料洛氏硬度测定方法
本文件描述了炭素材料洛氏硬度测定方法的原理、仪器设备、试样、试验步骤、精密度及试验报告。
本文件适用于骨料颗粒小于0.8 mm的炭素材料洛氏硬度的测定,其他炭素材料参照使用。...2023-09-11 02:24:01浏览:10
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XF/T 3020-2023 灭火剂中全氟辛烷磺酰基化合物(PFOS)的测定方法
本文件描述了灭火剂中全氟辛烷磺酷基化合物(PFOS)的高效液相色谱-串联质谱(HPLC-MS/MS)和核磁共振波谱(NMR)测定方法
本文件适用于泡沫灭火剂、水系灭火剂中全氟辛烷磺酷基化合物(PFOS)的测定...2023-09-02 23:00:01浏览:14
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ASTM D4365-2019 催化剂微孔体积和沸石面积测定方法 Standard Test Method for Determining Micropore Volume and Zeolite Area of a Catalyst
<div class="SectionLevel2"> <p class="subsec1 cdone2"><span class="Head3 cdone">1.1</span> This test method covers the determination of total surface area and mesopore area. From these results are calculated the zeolite area and micropore volume of a zeolite containing catalyst. The micropore volume is related to the percent zeolite in the catalyst. The zeolite area, a number related to the surface area within the zeolite pores, may also be calculated. Zeolite area, however, is difficult to interpret in physical terms because of the manner in which nitrogen molecules pack within the zeolite.</p></div> <div class="SectionLevel2"> <p class="subsec1 cdone2"><span class="Head3 cdone">1.2</span> The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.</p></div> <div class="SectionLevel2"> <p class="caveat cdone2"><span class="Head3 cdone">1.3</span> <i>This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. <span style="font-style:normal; font-weight:normal;" class="overriddenformat">For a specific precautionary statement, see <span class="Body-link1 cdone">Note 3</span>.</span></i></p></div> <div class="SectionLevel2"> <p class="WTOcaveat cdone2"><span class="Head3 cdone">1.4</span> <i>This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.</i></p></div>...
2023-08-26 11:24:01浏览:26
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GB/T 24174-2022 钢 烘烤硬化值(BH)的测定方法 Steel-Determination of Bake-Hardening-Index (BH)
本文件规定了钢的烘烤硬化值(BH)测定的原理、试验设备、试样、试验方法、试验结果的计算和试验报告。<br />本文件适用于有烘烤硬化现象钢材的烘烤硬化值测定。<br />注:本文件主要用于汽车工业中。...
2023-08-26 05:24:01浏览:13
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GB/T 14231-2021 齿轮装置效率测定方法 Determination of efficiency for gear units
本标准规定了齿轮装置传动效率台架的测试仪器、测试要求、测试方法、测试步骤、数据处理、记录和报告。<br />本标准适用于传递动力的有独立封闭式箱体的齿轮装置的效率测定。<br />本标准不适用于某些特殊单元的效率测定,如与传动齿轮做成一体的压缩机、泵、发动机,或不以传递动力为主要目的的齿轮装置等。...
2023-08-25 12:48:01浏览:16
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ASTM D5232-2019 固体、半固体或液体废物材料稳定性和可混合性测定方法 Standard Practice for Determining the Stability and Miscibility of a Solid, Semi-Solid, or Liquid Waste Material
<div class="SectionLevel2"> <p class="subsec1 cdone2"><span class="Head3 cdone">1.1</span> This practice is designed to determine whether a waste material reacts when it is mixed with air, water, strong acid, strong base, an oil/solvent mixture, other waste mixtures, or solid media such as a geological formation or solidification agents.</p></div> <div class="SectionLevel2"> <p class="subsec1 cdone2"><span class="Head3 cdone">1.2</span> The miscibility of the waste material with the above media can also be defined. </p><div style="text-align:left;" class="NoteLevel1"> <p><span class="note cdone" style="text-transform: uppercase;">Note 1:</span> <span class="note cdone">The following ASTM standards provide supplemental information: Test Methods <span class="Note-link1 cdone">D4978</span>, <span class="Note-link1 cdone">D4980</span>, <span class="Note-link1 cdone">D4982</span>, <span class="Note-link1 cdone">D5049</span>, and <span class="Note-link1 cdone">D5057</span> and Practices <span class="Note-link1 cdone">D4979</span>, <span class="Note-link1 cdone">D4981</span>, and <span class="Note-link1 cdone">D5058</span>.</span></p></div></div> <div class="SectionLevel2"> <p class="subsec1 cdone2"><span class="Head3 cdone">1.3</span> The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.</p></div> <div class="SectionLevel2"> <p class="caveat cdone2"><span class="Head3 cdone">1.4</span> <i>This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. <span style="font-style:normal; font-weight:normal;" class="overriddenformat">For specific hazard statements, see Section <span class="Body-link1 cdone">8</span>.</span></i></p></div> <div cla...
2023-08-23 03:00:01浏览:14
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DB12/T 512-2014 土壤样品中硝态氮的测定方法 Determination of soil nitrate nitrogen
本标准规定了采用紫外分光光度比色法测定土壤硝态氮的检测方法。<br />本标准适用于天津市范围内农田土壤硝态氮的测定。...
2023-08-16 12:48:01浏览:12
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