N04 基础标准与通用方法 标准查询与下载



共找到 559 条与 基础标准与通用方法 相关的标准,共 38

Communication systems for meters. Data exchange

ICS
33.200;35.100.70
CCS
N04
发布
2014-11-30
实施
2014-11-30

本标准规定了寿命服从指数分布或近似服从指数分布的仪器仪表的可靠性验证试验及测定试验的一般原则和可靠性特征量的估计方法。 本标准适用于产品以两个相邻失效工作时间的均值,失效前工作时间的均值及失效率为可靠性特征量的可靠性试验。 本标准适用于假定相邻失效间工作时间(对可修复产品)或失效前工作时间(对不可修复产品)的统计分布是服从指数分布(失效率为常数)的产品。

Guideline for reliability validation test and determination test (exponential distribution) for instrumentation

ICS
19.060
CCS
N04
发布
2014-10-01
实施
2014-10-01

Production equipment for microsystems - Determination of the influence of materials on the optical and tactile dimensional metrology - Part 3: Derivation of correction values for tactile measuring devices

ICS
39.020
CCS
N04
发布
2014-10
实施

Production equipment for microsystems - Determination of the influence of materials on the optical and tactile dimensional metrology - Part 2: Specimen for tactile procedures

ICS
39.020
CCS
N04
发布
2014-10
实施

INTERNATIONAL STANDARD This International Standard gives the general guidelines for the determination of experimental parameters relating to the primary beam, the wavelength spectrometer, and the sample that need to be taken into account when carrying out electron probe microanalysis. It also defines procedures for the determination of beam current, current density, dead time, wavelength resolution, background, analysis area, analysis depth, and analysis volume. This International Standard is intended for the analysis of a well-polished sample using normal beam incidence, and the parameters obtained can only be indicative for other experimental conditions. This International Standard is not designed to be used for energy dispersive X-ray spectroscopy.

Microbeam analysis - Electron probe microanalysis - Guidelines for the determination of experimental parameters for wavelength dispersive spectroscopy

ICS
71.040.50
CCS
N04
发布
2014-10
实施

This European Standard specifies a laboratory performance test for samplers for the inhalable, thoracic and respirable aerosol fractions, based on determining the sampling efficiency curve of a candidate sampler at a minimum of nine particle sizes. It specifies methods for testing aerosol samplers under prescribed laboratory conditions in order to test whether the performance of a candidate sampler fulfils the requirements of EN 13205-1:2014. This part of EN 13205 is applicable to all samplers used for the health-related sampling of particles in workplace air.

Workplace exposure - Assessment of sampler performance for measurement of airborne particle concentrations - Part 2: Laboratory performance test based on determination of sampling efficiency

ICS
13.040.30
CCS
N04
发布
2014-06
实施

This European Standard specifies a method for determining the performance of an aerosol sampler under prescribed workplace conditions in order to test whether the performance of a candidate sampler fulfils the requirements of EN 13205-1. This part of EN 13205 specifies also a simple method to determine how, for a specific workplace aerosol, the concentration measured by the candidate sampler can be recalculated into that of a validated sampler. This part of EN 13205 is applicable to all samplers used for the health-related sampling of particles in workplace air. Different test procedures and types of evaluation are included to enable application of this part of EN 13205 to a wide variety of instruments. The methods specified in this part of EN 13205 are not applicable to tests where the performance of personal samplers is related to static samplers or vice versa.

Workplace exposure - Assessment of sampler performance for measurement of airborne particle concentrations - Part 5: Aerosol sampler performance test and sampler comparison carried out at workplaces

ICS
13.040.30
CCS
N04
发布
2014-06
实施

This European Standard specifies a method for testing aerosol samplers based on comparison of concentrations under prescribed laboratory conditions in order to verify whether the performance of a candidate sampler fulfils the requirements of EN 13205-1:2014 This part of EN 13205 is applicable to all samplers used for the health-related sampling of particles in workplace air.

Workplace exposure - Assessment of sampler performance for measurement of airborne particle concentrations - Part 4: Laboratory performance test based on comparison of concentrations

ICS
13.040.30
CCS
N04
发布
2014-06
实施

This European Standard specifies a performance test of loaded collection substrates for samplers for the inhalable, thoracic or respirable aerosol fractions and, as alternative, a handling test, both for testing transport losses of aerosol sampler substrates under prescribed conditions in order to calculate the expanded uncertainty of a measuring procedure according to EN 13205-1:2014, Annex A. The transport test involves shipping loaded substrates with ordinary mail, whereas the handling test uses a shaker. This part of EN 13205 applies to all samplers used for the health-related sampling of particles in workplace air.

Workplace exposure - Assessment of sampler performance for measurement of airborne particle concentrations - Part 6: Transport and handling tests

ICS
13.040.30
CCS
N04
发布
2014-06
实施

本标准规定了编写仪器仪表可靠性要求及评估方法标准的编写要求、可靠性要求和评估方法。 本标准适用于各类仪器仪表产品可靠性要求及评估方法标准的编写。

Rules for the preparation of reliability requirements and assessment methods of instrumentation

ICS
25.040.40
CCS
N04
发布
2014-05-06
实施
2014-10-01

本规范适用于化工行业新建、扩建和改造项目中的自动化仪表选型设计。

Design code for instrument selection

ICS
CCS
N04
发布
2014-05-06
实施
2014-10-01

Guidance for the use of repeatability, reproducibility and trueness estimates in measurement uncertainty estimation (ISO 21748:2010); Text in German and English

ICS
17.020
CCS
N04
发布
2014-05
实施

Standard tests for measuring reaction-to-fire of products and materials - Their development and application

ICS
13.220.50
CCS
N04
发布
2014-03
实施

Control systems in the process industry - Electrical and instrumentation loop check (IEC 62382:2012); German version EN 62382:2013, with CD-ROM

ICS
03.080.99;71.120.01
CCS
N04
发布
2014-02
实施
2014-02-01

Communication systems for meters and remote reading of meters - Part 4: Wireless meter readout (Radio meter reading for operation in SRD bands); German version EN 13757-4:2013

ICS
33.200;35.100.10;35.100.20
CCS
N04
发布
2014-02
实施

Laboratory installations - Capture devices with articulated extract arm; German version CEN/TR 16589:2013

ICS
71.040.10
CCS
N04
发布
2014-02
实施

Measurement methods - Dry heat (steady state) tests

ICS
33.180.10
CCS
N04
发布
2014-02
实施

5.1 ASTM regulations require precision statements in all test methods in terms of repeatability and reproducibility. This practice may be used in obtaining the needed information as simply as possible. This information may then be used to prepare a precision statement in accordance with Practice E177. 5.2 Test Method and Protocol—In this practice, the term “test method” is used both for the actual measurement process and for the written description of the process, while the term “protocol” is used for the directions given to the laboratories for conducting the ILS. 5.3 Observations, Test Determinations and Test Results: 5.3.1 A test method often has three distinct stages, the direct observation of dimensions or properties, the arithmetic combination of the observed values to obtain a test determination, and the arithmetic combination of a number of test determinations to obtain the test result of the test method. In the simplest of test methods a single direct observation is both the test determination and the test result. For example, the test method may require the measurement of the mass of a test specimen prepared in a prescribed way. Another test method may require the measurement of the area of the test specimen as well as the mass, and then direct that the mass be divided by the area to obtain the mass per unit area of the specimen. The whole process of measuring the mass and the area and calculating the mass per unit area is a test determination. If the test method specifies that only one test determination is to be made, then the test determination value is the test result of the test method. Some test methods require that several determinations be made and the values obtained be averaged or otherwise combined to obtain the test result of the test method. Averaging of several determinations is often used to reduce the effect of local variations of the property within the material. 5.3.2 In this practice, the term “test determination” is used both for the process and for the value obtained by the process, except when “test determination value” is needed for clarity. 5.3.3 The number of test determinations required for a test result should be specified in each individual test method. The number of test results required for an interlaboratory study of a test method is specified in the protocol of that study. 5.4 Test Specimens and Test Units—In this practice a test unit is the total quantity of material needed for obtaining a test result as specified by the test method. The portion of the test unit needed for obtaining a single test determination is called a test specimen. Usually a separate test specimen is required for each test determination. 5.5 Precision, Bias, and Accuracy of a Test Method: 5.5.1 When a test method is applied to a large number of portions of a material, that are as nearly alike as possible, the test results obtained nevertheless will not all have the same value. A measure of the degree of agreement among these test results describes the precision of the test method for that material. 5.5.2 Numerical measures of the variability between such test results provide inverse measures of the precision of the test method. Greater variability implies smalle......

Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method

ICS
19.020 (Test conditions and procedures in general)
CCS
N04
发布
2014
实施

3.1 Samples obtained in accordance with the procedure given in this practice may be used to measure pavement thickness, density, resilient or dynamic modulus, tensile strength, Marshall or Hveem stability, or for extraction testing, to determine asphalt content, asphalt properties and mix gradation.Note 1—The quality of the results produced by this standard are dependent on the competence of the personnel performing the procedure and the capability, calibration, and maintenance of the equipment used. Agencies that meet the criteria of Specification D3666 are generally considered capable of competent and objective testing/sampling/inspection/etc. Users of this standard are cautioned that compliance with Specification D3666 alone does not completely assure reliable results. Reliable results depend on many factors; following the suggestions of Specification D3666 or some similar acceptable guideline provides a means of evaluating and controlling some of those factors. 1.1 This practice describes a procedure for removal of a sample of compacted bituminous mixture from a pavement for laboratory testing. 1.2 Units—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. 1.3 The text of this standard references notes and footnotes which provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the standard. 1.4 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 and health practices and determine the applicability of regulatory limitations prior to use.

Standard Practice for Sampling Compacted Bituminous Mixtures for Laboratory Testing

ICS
75.140 (Waxes, bituminous materials and other petr
CCS
N04
发布
2014
实施

Uncertainty of measurement - Part 4: role of measurement uncertainty in conformity assessment

ICS
17.020
CCS
N04
发布
2013-10-18
实施
2013-10-18



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