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体积、质量、密度和粘度的测量

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  • 土壤、岩石和建筑材料试验用天平和标准质量的评定、选择和规定的标准指南

    发布单位:

    美国-美国材料与试验协会(US-ASTM)

    标准状态:

    现行

    标准号:

    ASTM D4753-24

    发布时间:

    2024-02-01

    中标分类:

    -

    国标分类:

    17.060 计量学和测量、物理现象 - 体积、质量、密度和粘度的测量

    实施时间:
    摘要: 1.1This guide provides minimum requirements for general-purpose balances and standard masses used in testing soil, rock, and related construction materials.1.2This guide provides guidance for evaluating, selecting, and specifying general purpose balances and standard masses used in testing soil, rock, and related construction materials.1.3The accuracy requirements for balances are specified in terms of the combined effect of all sources of error contributing to overall balance performance. The measurement of specific sources of error and consideration of details pertaining to balance construction has been intentionally avoided.1.4This guide does not include requirements for balances having accuracies greater than those generally required in testing soil, rock, and related construction materials or for research programs or specialized testing requirements.1.5This guide does not apply to nongraduated balances.1.6This guide does not address the methods used to verify or quantify specific parameters dealing with balances. For a description of tests used in evaluating balance performance, see NIST Handbook 44.1.7This guide is not intended to be used as a specification for the purchase of balances.Note 1:The National Institute of Standards and Technology (NIST), formerly the National Bureau of Standards (NBS), and the International Organization of Legal Metrology (OIML) publish standards or practices that specify construction requirements as well as performance guides for balances. ASTM, OIML, and NIST publish construction standards and tolerances for standard masses.Note 2:The terms “mass” and “determine the mass of” are used in this standard instead of the more commonly used terms “weight” and “weigh” to comply with standard metric practice. In addition, the term “standard mass(es)” is used instead of “standard weight(s)” when referring to a piece of material of known specified mass used to compare or measure the mass of other masses.1.8The values states in SI units are to be regarded as standard.1.9This guide offers an organized collection of information or a series of options and does not recommend a specific course of action. This document cannot replace education or experience and should be used in conjunction with professional judgment. Not all aspects of this guide may be applicable in all circumstances. This ASTM standard is not intended to represent or replace the standard of care by which the adequacy of a given professional service must be judged nor should this document be applied without consideration of a project's many unique aspects. The word “Standard” in the title of this document means only that the document has been approved through the ASTM consensus process.1.10This 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.1.11This 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. ====== Significance And Use ======4.1This guide provides those using standards related to soil, rock, and related construction materials, with a means for selecting the balance required for a particular standard.4.2This guide provides those writing standards pertaining to soil, rock, and related construction materials with a means for specifying the balance capabilities required for a particular standard and for describing the balance selected in a uniform fashion.4.3This guide provides agencies conducting soil, rock, and related construction materials, testing with guidance for selecting and evaluating general purpose balances and standard masses.4.4This guide provides inspection organizations with criteria for evaluating general purpose balances and standard masses.
  • 用振荡流变仪测定糊状油墨载体粘弹性的标准试验方法

    发布单位:

    美国-美国材料与试验协会(US-ASTM)

    标准状态:

    现行

    标准号:

    ASTM D7271-24

    发布时间:

    2024-02-01

    中标分类:

    -

    国标分类:

    17.060 计量学和测量、物理现象 - 体积、质量、密度和粘度的测量

    87.080 涂料和颜料工业 - 墨水、油墨

    实施时间:
    摘要: 1.1This test method covers the procedure for determining the viscoelastic properties of printing ink vehicles by measuring the G', G”, and tan delta using a controlled strain cone and plate oscillatory rheometer.1.2This test method provides the flexibility of using several different types of rheometers to determine viscoelastic properties in ink vehicles.1.3This test method is not intended for systems that are volatile at procedure temperatures as evaporation may occur effectively changing the percent solids before testing is finished and significantly altering the rheology.1.4The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.1.5This 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.1.6This 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. ====== Significance And Use ======5.1This test method has found acceptance in the lithographic ink industry in predicting rheological behavior of a vehicle under press conditions caused by extrusion, shear-thinning rollers and dot gain recovery.5.2This test method is restricted within the torque limitations and strain resolution of the rheometer used.5.3Results may not be reproducible if the vehicle is not homogenous.
  • 活塞式容积测量仪第10部分:用户指南和能力、培训和POVA适用性要求

    发布单位:

    国际组织-国际标准化组织(IX-ISO)

    标准状态:

    现行

    标准号:

    ISO 8655-10:2024

    发布时间:

    2024-02-19

    中标分类:

    -

    国标分类:

    03.100.30 公司(企业)的组织和管理 - 劳动资源管理

    17.060 计量学和测量、物理现象 - 体积、质量、密度和粘度的测量

    实施时间:
    摘要: This document provides user guidance regarding the selection of piston-operated volumetric apparatus (POVA) (including exchangeable parts) and best practices for their use.This document also specifies requirements for user training and competence. Further, this document introduces performance tolerances and testing of POVA to ensure fitness for their intended use.
  • 发布单位:

    中国-团体标准(CN-TUANTI)

    标准状态:

    现行

    标准号:

    T/QGCML 1776-2023

    发布时间:

    2023-10-19

    中标分类:

    -

    国标分类:

    17.060 计量学和测量、物理现象 - 体积、质量、密度和粘度的测量

    实施时间:

    2023-11-03

    摘要: 主要技术内容:本文件规定了开关料位计的术语和定义、技术要求、结构组成、安装方法、标定投用、放射源管理和安全防护等。本文件适用于开关料位计的设计与实现
  • 发布单位:

    中国-团体标准(CN-TUANTI)

    标准状态:

    现行

    标准号:

    T/QGCML 1024-2023

    发布时间:

    2023-07-11

    中标分类:

    -

    国标分类:

    17.060 计量学和测量、物理现象 - 体积、质量、密度和粘度的测量

    实施时间:

    2023-07-26

    摘要: 主要技术内容:本标准规定了波纹管防水传感器的术语定义、技术要求、试验方法、检验规则、标志、包装、运输及贮存。本标准适用于波纹管防水传感器的生产、检验和验收
  • 发布单位:

    中国-团体标准(CN-TUANTI)

    标准状态:

    现行

    标准号:

    T/QGCML 961-2023

    发布时间:

    2023-06-21

    中标分类:

    -

    国标分类:

    17.060 计量学和测量、物理现象 - 体积、质量、密度和粘度的测量

    实施时间:

    2023-06-25

    摘要: 主要技术内容:本文件规定了电子防水秤的要求、试验方法、检验方法及标志、包装、运输和贮存等。本文件适用电子防水秤(仅适用于工厂、实验室的称重和配方用秤,非贸易用秤)的设计、制造、试验和应用
  • 发布单位:

    中国-团体标准(CN-TUANTI)

    标准状态:

    现行

    标准号:

    T/QGCML 959-2023

    发布时间:

    2023-06-21

    中标分类:

    -

    国标分类:

    17.060 计量学和测量、物理现象 - 体积、质量、密度和粘度的测量

    实施时间:

    2023-06-25

    摘要: 主要技术内容:本文件规定了家用电子厨房秤(以下简称厨房秤)的型号、要求、试验方法、检验规则、标志、使用说明书、包装、运输及贮存。本文件适用于10 kg以下量程,以称重传感器及承重元件,发光二极管或液晶显示器(以下分别简称LED/LCD) 数字显示的家用电子秤。本文件未包括的电子衡器功能,只要不妨碍称重功能要求,任何功能都允许设置
  • 发布单位:

    中国-团体标准(CN-TUANTI)

    标准状态:

    现行

    标准号:

    T/QGCML 962-2023

    发布时间:

    2023-06-21

    中标分类:

    -

    国标分类:

    17.060 计量学和测量、物理现象 - 体积、质量、密度和粘度的测量

    实施时间:

    2023-06-25

    摘要: 主要技术内容:本文件规定了电子条码秤的要求、试验方法、检验方法、检验规则及标志、包装、运输和贮存等。本文件适用电子条码秤的设计、制造、试验和应用
  • 发布单位:

    中国-团体标准(CN-TUANTI)

    标准状态:

    现行

    标准号:

    T/SZJL 5-2023

    发布时间:

    2023-11-13

    中标分类:

    -

    国标分类:

    17.060 计量学和测量、物理现象 - 体积、质量、密度和粘度的测量

    实施时间:

    2023-11-15

    摘要: 主要技术内容:本文件规定了洁净室服装及织物对空气粒子过滤效率的检测方法,其中包括:术语和定义、检测原理、检测条件、检测操作、结果报告等。本文件适用于医药、半导体、精密机械仪表等行业的洁净室及相关受控环境内使用的,纺织机或非织造布制作的透气型洁净室服装及织物。本文件主要关注洁净室服装及织物对空气中颗粒的过滤效率,尤其是对粒径小于0.5 μm 粒子的过滤性能,以适应洁净室不断提高的洁净度要求
  • 发布单位:

    中国-团体标准(CN-TUANTI)

    标准状态:

    现行

    标准号:

    T/YNBX 129-2023

    发布时间:

    2023-11-29

    中标分类:

    -

    国标分类:

    17.060 计量学和测量、物理现象 - 体积、质量、密度和粘度的测量

    实施时间:

    2023-12-01

    摘要: 范围:本文件规定了咖啡中赭曲霉毒素残留基质标样的制样技术操作规范。本文件适用于咖啡中赭曲霉毒素基质标样制备的实验室制样规范;主要技术内容:本文件规定了咖啡中赭曲霉毒素残留基质标样的制样技术操作规范。本文件适用于咖啡中赭曲霉毒素基质标样制备的实验室制样规范
  • 11.[标准] 连续料位计

    发布单位:

    中国-团体标准(CN-TUANTI)

    标准状态:

    现行

    标准号:

    T/QGCML 1778-2023

    发布时间:

    2023-10-19

    中标分类:

    -

    国标分类:

    17.060 计量学和测量、物理现象 - 体积、质量、密度和粘度的测量

    实施时间:

    2023-11-03

    摘要: 主要技术内容:本文件规定了连续料位计的术语和定义、技术要求、结构组成、安装方法、标定投用、放射源管理和安全防护、日常管理。本文件适用于连续料位计的设计与实现
  • 发布单位:

    中国-团体标准(CN-TUANTI)

    标准状态:

    现行

    标准号:

    T/CMA YX095-2023

    发布时间:

    2023-11-17

    中标分类:

    -

    国标分类:

    17.060 计量学和测量、物理现象 - 体积、质量、密度和粘度的测量

    实施时间:

    2023-11-18

    摘要: 主要技术内容:本标准规定了洗板机的校准方法和校准结果等
  • 发布单位:

    中国-团体标准(CN-TUANTI)

    标准状态:

    现行

    标准号:

    T/YNBX 127-2023

    发布时间:

    2023-11-29

    中标分类:

    -

    国标分类:

    17.060 计量学和测量、物理现象 - 体积、质量、密度和粘度的测量

    实施时间:

    2023-12-01

    摘要: 范围:本文件规定了实验室检测香菇中重金属含量的质量控制技术规范。本文件适用于香菇中重金属(铅Pb、镉Cd、铬Cr、铜Cu、锌Zn、砷As)含量测定的实验室质量控制规范;主要技术内容:本文件规定了实验室检测香菇中重金属含量的质量控制技术规范。本文件适用于香菇中重金属(铅Pb、镉Cd、铬Cr、铜Cu、锌Zn、砷As)含量测定的实验室质量控制规范
  • 使用三台旋转台式粘度计测定建筑涂料流变特性的标准实施规程

    发布单位:

    美国-美国材料与试验协会(US-ASTM)

    标准状态:

    现行

    标准号:

    ASTM D7394-18(2023)

    发布时间:

    2023-02-01

    中标分类:

    -

    国标分类:

    17.060 计量学和测量、物理现象 - 体积、质量、密度和粘度的测量

    实施时间:
    摘要: 1.1This practice describes a popular industry protocol for the rheological characterization of waterborne architectural coatings using three commonly used rotational bench viscometers. Each viscometer operates in a different shear rate regime for determination of coating viscosity at low shear rate, mid shear rate, and at high shear rate respectively as defined herein. General guidelines are provided for predicting some coating performance properties from the viscosity measurements made. With appropriate correlations and subsequent modification of the performance guidelines, this practice has potential for characterization of other types of aqueous and non-aqueous coatings.1.2The values in common viscosity units (Krebs Units, KU and Poise, P) are to be regarded as standard.1.3This 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.1.4This 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. ====== Significance And Use ======5.1A significant feature of this practice is the ability to survey coating rheology over a broad range of shear rates with the same bench viscometers and test protocol that paint formulators and paint quality control (QC) analysts routinely use. By using this procedure, measurement of the shear rheology of a coating is possible without using an expensive laboratory rheometer, and performance predictions can be made based on those measurements.5.2Low-Shear Viscosity (LSV)—The determination of low-shear viscosity in this practice can be used to predict the relative “in-can” performance of coatings for their ability to suspend pigment or prevent syneresis, or both. The LSV can also predict relative performance for leveling and sag resistance after application by roll, brush or spray.Fig. 1shows the predictive low-shear viscosity relationships for several coatings properties.FIG. 1Low Shear Viscosity (LSV)5.3Mid-Shear Viscosity (MSV)—The determination of MSV (coating consistency) in this practice is often the first viscosity obtained. This viscosity reflects the coatings resistance to flow on mixing, pouring, pumping, or hand stirring. Architectural coatings nearly always have a target specification for mid-shear viscosity, which is usually obtained by adjusting the level of thickener in the coating. Consequently, mid-shear viscosity is ideally a constant for a given series of coatings being tested to provide meaningful comparisons of low-shear and high-shear viscosity. With viscosities at the same KU value, MSV can also be used to obtain the relative Mid-Shear Thickener Efficiency (MSTE) of different thickeners in the same coating expressed as lb thickener/100 gal wet coating or g thickener/L wet coating.5.4High-Shear Viscosity (HSV)—High-shear viscosity in this practice is a measure of the coatings resistance to flow on application by brush or roller, which is often referred to as brush-drag or rolling resistance respectively. This viscosity relates to the coatings ability to provide one-coat hiding, its ease of application (brushing or rolling resistance), and its spread rate.Fig. 2shows high-shear viscosity relationship predictions for relative coating performance.FIG. 2High Shear Viscosity (HSV)
  • 同心圆筒旋转粘度计校准或校准验证的标准试验方法

    发布单位:

    美国-美国材料与试验协会(US-ASTM)

    标准状态:

    现行

    标准号:

    ASTM E2975-23

    发布时间:

    2023-01-01

    中标分类:

    -

    国标分类:

    17.060 计量学和测量、物理现象 - 体积、质量、密度和粘度的测量

    实施时间:
    摘要: 1.1This test method describes the calibration or calibration verification of rotational viscometers in which the rotational element is immersed in a Newtonian reference material under ambient temperature conditions. The method is applicable to rotational-type viscometers where a constant rotational speed results in a measured torque generated by the test specimen, and to Stormer viscometers where a constant applied torque results in a measured rotational speed. It is not intended for cone-and-plate or parallel plate viscometers.1.2Calibration shall be performed with Newtonian reference materials using experimental conditions such as temperature, viscosity range, and shear rate (rotational speed), as close as practical to those to be used for measurement of test specimens.1.3Units—The values stated in SI units are to be regarded as standard. The values given in parentheses are mathematical conversions that are provided for information only and are not considered standard.1.3.1Common viscosity units of Poise (P) are related to the SI units by the equivalency 1 cP = 1 mPa·s.1.4This 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.1.5This 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. ====== Significance And Use ======5.1This test method may be used to calibrate or verify calibration of a rotational viscometer with coaxial spindle geometries.
  • 测试方法B212、B329和B417中使用的表观密度杯体积测量的标准试验方法

    发布单位:

    美国-美国材料与试验协会(US-ASTM)

    标准状态:

    现行

    标准号:

    ASTM B873-23

    发布时间:

    2023-02-01

    中标分类:

    -

    国标分类:

    17.060 计量学和测量、物理现象 - 体积、质量、密度和粘度的测量

    实施时间:
    摘要: 1.1This test method covers a procedure for measuring the volume of the apparent density cups used in Test MethodsB212,B329, andB417.1.2The apparent density cup, particularly its rim, may become worn during use, and it is recommended that the volume of the cup be checked periodically (at least every 6 months) in order to ensure that it complies with the specified volume.1.3Units—With the exception of the values for density and the mass used to determine density, for which the use of the gram per cubic centimetre (g/cm3) and gram (g) units is the long standing industry practice, the values in SI units are to be regarded as standard.1.4This 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.1.5This 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. ====== Significance And Use ======5.1This test method enables the measurement of the volume of the apparent density cup to ensure that it complies with the specified volume of 25.00 cm3± 0.03 cm3(cylindrical cup), or 16.39 cm3± 0.05 cm3(square cup). Use of an out-of-specification cup will give erroneous apparent density values using the formulae in Test MethodsB212,B329, andB417.
  • 旋转粘度计粘度测量验证的标准试验方法

    发布单位:

    美国-美国材料与试验协会(US-ASTM)

    标准状态:

    现行

    标准号:

    ASTM E3116-23

    发布时间:

    2023-06-01

    中标分类:

    -

    国标分类:

    17.060 计量学和测量、物理现象 - 体积、质量、密度和粘度的测量

    实施时间:
    摘要: 1.1This test method provides procedures for validating viscosity measurements by rotational viscometers of Newtonian fluids. Performance parameters determined include viscosity repeatability (precision), detection limit, quantitation limit, linearity, and bias.1.2Validation of apparatus performance and analytical methods is requested or required for quality initiatives or where results may be used for legal purposes.1.3The values stated in SI units are the standard. No other units of measurement are included in this standard.1.4This 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.1.5This 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. ====== Significance And Use ======5.1This test method may be used to validate the performance of a specific rotational viscometer apparatus.5.2This test method may be used to validate the performance of a specific method based upon the measurement of viscosity using rotational viscometer apparatus.5.3This test method may be used to determine the repeatability of a specific apparatus, operator, or laboratory.5.4This test method may be used for specification or regulatory compliance purposes.
  • 液体样品傅里叶变换核磁共振(FT-NMR)光谱仪性能测量和报告的标准实施规程

    发布单位:

    美国-美国材料与试验协会(US-ASTM)

    标准状态:

    现行

    标准号:

    ASTM E2977-15(2023)

    发布时间:

    2023-01-01

    中标分类:

    -

    国标分类:

    17.060 计量学和测量、物理现象 - 体积、质量、密度和粘度的测量

    实施时间:
    摘要: 1.1This practice covers procedures for measuring and reporting the performance of Fourier-transform nuclear magnetic resonance spectrometers (FT-NMRs) using liquid samples.1.2This practice is not directly applicable to FT-NMR spectrometers outfitted to measure gaseous, anisotropically structured liquid, semi-solid, or solid samples; those set up to work with flowing sample streams; or those used to make hyperpolarization measurements.1.3This practice was expressly developed for FT-NMR spectrometers operating with proton resonance frequencies between 200 MHz and 1200 MHz.1.4This practice is not directly applicable to continuous wave (scanning) NMR spectrometers.1.5This practice is not directly applicable to instruments using single-sideband detection.1.6Units—The values stated in SI units are to be regarded as the standard. No other units of measurement are included in this standard.1.7This 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.1.8This 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. ====== Significance And Use ======4.1This practice permits an analyst to compare the performance of an NMR spectrometer for a particular test on any given day with the instrument's prior performance for that test. The practice can also provide sufficient quantitative performance information for problem diagnosis and solving. If complete information about how a test is carried out is supplied and sufficient replicates are collected to substantiate statistical relevance, the tests in this practice can be used to establish the setting and meeting of relevant performance specifications. This practice is not necessarily meant for the comparison of different instruments with each other, even if the instruments are of the same type and model. This practice is not meant for the comparison of the performance of different instruments operated under conditions differing from those specified for a particular test.
  • 挥发性和反应性液体运动粘度的标准试验方法

    发布单位:

    美国-美国材料与试验协会(US-ASTM)

    标准状态:

    现行

    标准号:

    ASTM D4486-23

    发布时间:

    2023-12-01

    中标分类:

    -

    国标分类:

    17.060 计量学和测量、物理现象 - 体积、质量、密度和粘度的测量

    实施时间:
    摘要: 1.1This test method covers the measurement of kinematic viscosity of transparent, Newtonian liquids which because of their reactivity, instability, or volatility cannot be used in conventional capillary kinematic viscometers. This test method is applicable up to 2 × 10−5N/m2(2 atm) pressure and temperature range from −53 °C to +135 °C (−65 °F to +275 °F).1.1.1For the measurement of the kinematic viscosity of other liquids, see Test MethodD445. The difference between the two methods is in the viscometers. The viscometers specified in used SpecificationD446are open to the atmosphere, while the viscometers in this method are sealed. When volatile liquids are measured in sealed viscometers, the density of the vapor may not be negligible compared with the density of the liquid and the working equation of the viscometer has to account for that. See Section11for details.1.2WARNING—Mercury has been designated by many regulatory agencies as a hazardous substance that can cause serious medical issues. Mercury, or its vapor, has been demonstrated to be hazardous to health and corrosive to materials. Use Caution when handling mercury and mercury-containing products. See the applicable product Safety Data Sheet (SDS) for additional information. The potential exists that selling mercury or mercury-containing products, or both, is prohibited by local or national law. Users must determine legality of sales in their location.1.3This 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.For specific warning statements, see7.2,7.3,7.4, andAnnex A1.1.4This 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. ====== Significance And Use ======5.1Kinematic viscosity is a physical property which is of importance in the design of systems in which flowing liquids are used or handled.
  • 透明和不透明液体运动粘度的标准试验方法(和动态粘度的计算)

    发布单位:

    美国-美国材料与试验协会(US-ASTM)

    标准状态:

    现行

    标准号:

    ASTM D445-23

    发布时间:

    2023-11-01

    中标分类:

    -

    国标分类:

    17.060 计量学和测量、物理现象 - 体积、质量、密度和粘度的测量

    75.080 石油及相关技术 - 石油产品综合

    实施时间:
    摘要: 1.1This test method specifies a procedure for the determination of the kinematic viscosity, ν, of liquid petroleum products, both transparent and opaque, by measuring the time for a volume of liquid to flow under gravity through a calibrated glass capillary viscometer. The dynamic viscosity, η, can be obtained by multiplying the kinematic viscosity, ν, by the density, ρ, of the liquid.Note 1:For the measurement of the kinematic viscosity and viscosity of bitumens, see also Test MethodsD2170andD2171.Note 2:ISO 3104 corresponds to Test MethodD445– 03.1.2The result obtained from this test method is dependent upon the behavior of the sample and is intended for application to liquids for which primarily the shear stress and shear rates are proportional (Newtonian flow behavior). If, however, the viscosity varies significantly with the rate of shear, different results may be obtained from viscometers of different capillary diameters. The procedure and precision values for residual fuel oils, which under some conditions exhibit non-Newtonian behavior, have been included.1.3The range of kinematic viscosities covered by this test method is from 0.2 mm2/s to 300 000 mm2/s (seeTable A1.1) at all temperatures (see6.3and6.4). The precision has only been determined for those materials, kinematic viscosity ranges and temperatures as shown in the footnotes to the precision section.1.4The values stated in SI units are to be regarded as standard. The SI unit used in this test method for kinematic viscosity is mm2/s, and the SI unit used in this test method for dynamic viscosity is mPa·s. For user reference, 1 mm2/s = 10-6m2/s = 1 cSt and 1 mPa·s = 1 cP = 0.001 Pa·s.1.5WARNING—Mercury has been designated by many regulatory agencies as a hazardous substance that can cause serious medical issues. Mercury, or its vapor, has been demonstrated to be hazardous to health and corrosive to materials. Use Caution when handling mercury and mercury-containing products. See the applicable product Safety Data Sheet (SDS) for additional information. The potential exists that selling mercury or mercury-containing products, or both, is prohibited by local or national law. Users must determine legality of sales in their location.1.6This 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.1.7This 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. ====== Significance And Use ======5.1Many petroleum products, and some non-petroleum materials, are used as lubricants, and the correct operation of the equipment depends upon the appropriate viscosity of the liquid being used. In addition, the viscosity of many petroleum fuels is important for the estimation of optimum storage, handling, and operational conditions. Thus, the accurate determination of viscosity is essential to many product specifications.
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