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GB/T 41079.1-2021 液态金属物理性能测定方法 第1部分:密度的测定 Test methods for physical properties of liquid metals- Part 1 :Determination of density
本文件规定了液态金属密度的测定方法。<br />本文件适用于在室温至300℃范围内进行液态金属密度的测定。在300℃以上的熔盐、金属熔体密度测定也可参照使用。...
2023-06-11 04:00:01浏览:17
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BS EN ISO 13116-2014 牙科 材料射线不透性的测定方法 Dentistry. Test Method for Determining Radio-Opacity of Materials
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2023-06-10 22:36:02浏览:16
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GB/T 18856.4-2002 水煤浆质量试验方法 第4部分:水煤浆表观粘度测定方法 Test methods for quality of coal water mixture - Part 4 - Determination of apparent viscosity of coal water mixture
<font class="font-highlight">GB</font>/T 18856的本部分规定了一种采用带有同轴圆筒测量系统的旋转粘度计测定水煤浆表观粘度的方法。<br />本部分适用于各种水煤浆。...
2023-06-10 13:12:01浏览:31
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HG/T 5336-2018 分子筛落粉度测定方法 Determination of dust drops for molecular sieve
本标准规定了颗粒状分子筛表面粉尘含量的测定方法。<br />本标准适用于各类颗粒状分子筛。...
2023-06-08 22:12:01浏览:18
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DB13/T 1224-2010 有机化工产品的总氮测定方法 Determination of total nitrogen for organic chemical products
本标准规定了将有机氮化合物转变为铵盐并用蒸馏滴定法测定总氮的方法。<br />本标准适用于有机化工产品中总氮的测定。...
2023-06-05 08:24:01浏览:17
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DB13/T 1220-2010 有机化工产品折光率测定方法 Determinalion method of refractive power rate for organic chemical products
本标准规定了用阿贝折射仪测定液体有机化工产品折光率的方法.<br />本标准适用于常温下浅色、透明或半透明、折光率范围在1.3000~1.7000的液体有机化工产品的测定。...
2023-06-01 15:36:01浏览:20
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ASTM E1109-2019 固体废料碎片容积密度测定方法 Standard Test Method for Determining the Bulk Density of Solid Waste Fractions
<div class="SectionLevel2"> <p class="subsec1 cdone2"><span class="Head3 cdone">1.1</span> This test method may be used to determine the bulk density of various fractions from the resource recovery processing of municipal solid waste. It is intended as a means of characterizing such fractions and for providing data useful to designers of solid waste processing plants.</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. The values given in parentheses are for information only.</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.</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>...
2023-05-18 18:36:02浏览:26
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GB/T 2286-2017 焦炭全硫含量的测定方法 Determination of total sulfur composition of coke
本标准规定了测定焦炭中全硫含量的艾氏卡法、高温燃烧法、库仑滴定法和红外光谱法的方法原理、试剂和材料、仪器设备、试样的采取、试验步骤、结果计算和精密度等。<br />本标准适用于焦炭、半焦(兰炭)。...
2023-05-14 05:12:01浏览:29
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ASTM D7157-2018 含沥青浠残余物、重油和原油内在稳定性测定方法(n-庚烷相分离,光学检测) Standard Test Method for Determination of Intrinsic Stability of Asphaltene-Containing Residues, Heavy Fuel Oils, and Crude Oils (n-Heptane Phase Separation; Optical Detection)
<div class="SectionLevel2"> <p class="subsec1 cdone2"><span class="Head3 cdone">1.1</span> This test method covers a procedure for quantifying the intrinsic stability of the asphaltenes in an oil by an automatic instrument using an optical device.</p></div> <div class="SectionLevel2"> <p class="subsec1 cdone2"><span class="Head3 cdone">1.2</span> This test method is applicable to residual products from thermal and hydrocracking processes, to products typical of Specifications <span class="Body-link1 cdone">D396</span> Grades No. 5L, 5H, and 6, and <span class="Body-link1 cdone">D2880</span> Grades No. 3-GT and 4-GT, and to crude oils, providing these products contain 0.5 % by mass or greater concentration of asphaltenes (see Test Method <span class="Body-link1 cdone">D6560</span>).</p></div> <div class="SectionLevel2"> <p class="subsec1 cdone2"><span class="Head3 cdone">1.3</span> This test method quantifies asphaltene stability in terms of state of peptization of the asphaltenes (<span style="font-style:italic;font-weight:normal;" class="overriddenformat">S</span>-value), intrinsic stability of the oily medium (<span style="font-style:italic;font-weight:normal;" class="overriddenformat">So</span>) and the solvency requirements of the peptized asphaltenes (<span style="font-style:italic;font-weight:normal;" class="overriddenformat">Sa</span>).</p></div> <div class="SectionLevel2"> <p class="subsec1 cdone2"><span class="Head3 cdone">1.4</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">1.5</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 regul...
2023-05-11 15:12:01浏览:38
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GB/T 42368-2023 高温高压条件下可燃气体(蒸气)爆炸极限测定方法
本文件描述了在给定初始温度和初始压力条件下,可燃气体(蒸气)与空气形成可燃混合气的爆炸极限的测定方法。本文件适用于初始温度200 ℃以下,初始压力1.0 MPa(绝对压力)以下,且最大爆炸压力不大于15.0 MPa(绝对压力)条件下可燃气体(蒸气)爆炸极限的测定。本文件不适用于化学不稳定性气体或各组分相互间会发生反应的混合气体爆炸极限测定。
起草人:
任常兴、陈思凝、王玥、魏利军、张网、张欣、王振刚、孔祥北、罗艾民、姜杰、管长勇、吕文涛、邱文泽
起草单位:
应急管理部天津消防研究所、中国安全生产科学研究院、中石化安全工程研究院有限公司、吉林市宏源科学仪器有限公司、爱迪赛恩(北京)科技有限公司、杭州仰仪科技有限公司
归口单位:
全国危险化学品管理标准化技术委员会(SAC/TC 251)...2023-05-06 14:36:01浏览:62
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GB/T 33810-2017 农药堆密度测定方法 Testing method of bulk density for pesticides
本标准规定了农药松密度和实密度的测定方法。<br />本标准适用于颗粒剂、水分散粒剂等固体制剂的松密度和实密度测定。...
2023-05-04 14:00:26浏览:27
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GB/T 23605-2020钛合金β转变温度测定方法Determination of Ji transus temperature of titanium alloys
本标准规定了金相法测定钛合金β转变温度的原理、试样、仪器设备、试验步骤、试验结果的判定、和试验报告。<br />本标准适用于采用金相法测定α型、α-β型和亚稳定β型钛合金的β转变温度。...
2023-04-17 22:50:01浏览:22
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