N50 物质成份分析仪器与环境监测仪器综合 标准查询与下载



共找到 219 条与 物质成份分析仪器与环境监测仪器综合 相关的标准,共 15

Expression of performance of gas analyzers. Tuneable semiconductor laser gas analyzers

ICS
19.040;71.040.40
CCS
N50
发布
2014-01-31
实施
2014-01-31

이 표준은 이동 입자 측정기(미분 이동도 분석기라고도 함)를 사용하여 초미세 에어로졸과 나노에어로졸의 수 농도와 크기 분포를 측정하는 지침을 제공한다. 이 때, 에어로졸의 입도 분율만을 고려한다. 초미세 에어로졸과 나노에어로졸의 경우, 수 농도와 표면적 농도 등의 노출 매트릭스가 중요하다.이 표준은 초미세 에어로졸과 나노에어로졸의 작업장에서의 노출을 측정하는 지침을 또한 제공한다.특히, 현재 몇몇 공급업체에서 시판하는 미분 이동도 분석 시스템(DMAS)을 논의한다. 또한, 작동 원리, 작업장 환경에서의 시료채취 문제, 교정, 장비 유지관리, 측정 불확도, 측정 결과 보고 등에 대해서도 다룬다.그리고 지정된 노출 기준하에서 규정 준수 조치를 취할 때 다루어야 할 잠재적 문제점과 제한점을설명한다.

Workplace atmospheres ― Characterization of ultrafine aerosols/ nanoaerosols ― Determination of the size distribution and number concentration using differential electrical mobility analysing systems

ICS
13.040.30
CCS
N50
发布
2013-12-30
实施
2013/12/30

Volatile phenol water quality online automatic analyzer

ICS
01.040.13
CCS
N50
发布
2013-08-30
实施
2013-10-30

Nickel water quality online automatic analyzer

ICS
01.040.13
CCS
N50
发布
2013-08-30
实施
2013-10-30

이 표준은 반도체 검출기, 전치증폭기, 신호 처리장치와 같은 기본 부품으로 구성된 에너지

Microbeam analysis-Instrumental specification for energy dispersive X-ray spectrometers with semiconductor detectors

ICS
71.040.99
CCS
N50
发布
2012-12-07
实施
2012-12-07

Practice for use of a polymethylmethacrylate dosimetry system

ICS
17.240
CCS
N50
发布
2012-07
实施

This European Standard specifies minimum requirements and tests for electrical apparatus for the detection and measurement of combustible gases, toxic gases or oxygen using software and/or digital technologies. Additional requirements are specified if compliance with safety integrity level 1 (SIL 1) according to EN 61508 series is required for low demand mode of operation. NOTE 1 It is recommended to apply this European Standard for apparatus used for safety applications with SIL-requirement 1 instead of EN 50402. However, the technical requirements of EN 50271 and EN 50402 are the same for SIL 1. NOTE 2 For fixed apparatus used for safety applications with SIL-requirements higher than 1 EN 50402 is applicable. This European Standard is applicable to fixed, transportable and portable apparatus intended for use in domestic premises as well as commercial and industrial applications. This European Standard does not apply to external sampling systems, or to apparatus of laboratory or scientific type, or to apparatus used only for process control purposes. This European Standard supplements the requirements of the European Standards for the detection and measurement of flammable gases and vapours (e.g. EN 60079-29-1, EN 50241-1, EN 50241-2, EN 50194-1, EN 50194-2), toxic gases (e.g. EN 45544 series, EN 50291-1, EN 50291-2) or oxygen (e.g. EN 50104). NOTE 3 These European Standards will be mentioned in this European Standard as "metrological standards". NOTE 4 The examples above show the state of the standardisation for gas detection apparatus at the time of publishing this European Standard. There may be other metrological standards for which this European Standard is also applicable. This European Standard is a product standard which is based on EN 61508 series. It covers part of the phase 9 "realisation" of the overall safety life cycle defined in EN 61508-1.

Electrical apparatus for the detection and measurement of combustible gases, toxic gases or oxygen. Requirements and tests for apparatus using software and/or digital technologies

ICS
13.320;29.260.20;71.040.40
CCS
N50
发布
2011-04-30
实施
2011-04-30

1.1 This practice covers the design, material grouping classification, and manufacture of hole-type image quality indicators (IQI) used to indicate the quality of radiologic images. 1.2 This practice is applicable to X-ray and gamma-ray radiology. 1.3 The values stated in inch-pound units are to be regarded as 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 Design, Manufacture, and Material Grouping Classification of Hole-Type Image Quality Indicators (IQI) Used for Radiology

ICS
19.100
CCS
N50
发布
2011
实施

Strain gradient values are an aid in the design and fabrication of MEMS devices.1.1 This test method covers a procedure for measuring the strain gradient in thin, reflecting films. It applies only to films, such as found in microelectromechanical systems (MEMS) materials, which can be imaged using an optical interferometer, also called an interferometric microscope. Measurements from cantilevers that are touching the underlying layer are not accepted. 1.2 This test method uses a non-contact optical interferometric microscope with the capability of obtaining topographical 3-D data sets. It is performed in the laboratory. 1.3 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 Test Method for Strain Gradient Measurements of Thin, Reflecting Films Using an Optical Interferometer

ICS
37.040.20 (Photographic paper, film and plates. Ca
CCS
N50
发布
2011
实施

Residual strain measurements are an aid in the design and fabrication of MEMS devices. The value for residual strain is used in Youngrsquo;modulus calculations.1.1 This test method covers a procedure for measuring the compressive residual strain in thin films. It applies only to films, such as found in microelectromechanical systems (MEMS) materials, which can be imaged using an interferometer. Measurements from fixed-fixed beams that are touching the underlying layer are not accepted.1.2 This test method uses a non-contact optical interferometer with the capability of obtaining topographical 3-D data sets. It is performed in the laboratory.1.3 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 Test Method for Residual Strain Measurements of Thin, Reflecting Films Using an Optical Interferometer

ICS
37.040.20 (Photographic paper, film and plates. Ca
CCS
N50
发布
2011
实施

이 표준은 공기 중의 휘발성 유기화합물 중 트리클로로에틸렌 및 테트라클로로에틸렌의 농도를

Measuring method for volatile organic compounds in airborne by gas detector tube

ICS
71.080.01
CCS
N50
发布
2010-10-04
实施
2010-10-04

本规程适用于测量范围为0-1 000 µmol/mol微量氧分析仪的首次检定、后续检定和使用中检验。

Verification Regulation of Micro Oxygen Analyzers

ICS
CCS
N50
发布
2010-06-10
实施
2010-12-10

This part of IEC 61207 is applicable to gas analyzers used for the determination of certain constituents in gaseous mixtures. This part of IEC 61207 specifies the terminology, definitions, requirements for statements by manufacturers and tests that are common to all gas analyzers. Other international standards in this series, for example IEC 61207-2, describe those aspects that are specific to certain types (utilizing high-temperature electrochemical sensors). This part IEC 61207 is in accordance with the general principles set out in IEC 60359 and IEC 60770. This standard is applicable to analyzers specified for permanent installation in any location (indoors or outdoors) and to such analyzers utilizing either a sample handling system or an in situ measurement technique. This standard is applicable to the complete analyzer when supplied by one manufacturer as an integral unit, comprised of all mechanical, electrical and electronic portions. It also applies to sensor units alone and electronic units alone when supplied separately or by different manufacturers. For the purposes of this standard, any regulator for mains-supplied power or any non-mains power supply, provided with the analyzer or specified by the manufacturer, is considered part of the analyzer whether it is integral with the analyzer or housed separately. Safety requirements are dealt with in IEC 61010-1. If one or more components in the sample is flammable, and air or another gas mixture containing oxygen or other oxidizing component is present, then the concentration range of the reactive components are limited to levels which are not within flammability limits. Standard range of analogue d.c. current and pneumatic signals used in process control systems are dealt with in IEC 60381-1 and IEC 60382. Specifications for values for the testing of influence quantities can be found in IEC 60654. Requirements for documentation to be supplied with instruments are dealt with in IEC 61187. Requirements for general principles concerning quantities, units and symbols are dealt with in ISO 1000. See also ISO 31-0.

Expression of performance of gas analyzers - Part 1: General

ICS
71.040.40
CCS
N50
发布
2010-05
实施
2010-06-02

PRACTICE FOR USE OF A POLYMETHYLMETHACRYLATE DOSIMETRY SYSTEM

ICS
17.240
CCS
N50
发布
2010
实施

이 표준은 가스의 정량분석을 하기 위한 가스분석장치(이하 분석장치라 한다.)의 눈금값을 교

General rules for calibration method of gas analyzer

ICS
71.040.40
CCS
N50
发布
2009-10-12
实施
2009-10-12

이 표준은 분체 재료의 입자 크기 분포를 광투과식 액상 원심침강법에 의해 측정하는 방법에

Determination of particle size distribution by centrifugal liquid sedimentation methods-Part 2:Photocentrifuge method

ICS
19.12
CCS
N50
发布
2009-08-03
实施
2009-08-03

1.1 Polarimeters and polariscopes used for measuring stress in glass are described in Test Methods F218, C148, and C978. These instruments include a light source and several optical elements (polarizers, optical retarders, filters, and so forth) that require occasional cleaning, realigning, and calibration. The objective of these practices is to describe the calibration and verification procedures required to maintain these instruments in calibration and ensure that the optical setup is within specification for satisfactory measurements. 1.2 It is mandatory throughout these practices that both verification and calibration are carried out by qualified personnel who fully understand the concepts used in measurements of stress retardation and are experienced in the practices of measuring procedures described in Test Methods F218, C148, and C978. 1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

Standard Practices for Verification and Calibration of Polarimeters

ICS
71.040.10
CCS
N50
发布
2009
实施

Hand-held meters provide a rapid means of sampling MC of wood-based materials during and after processing to maintain quality assurance and compliance with standards. These measurements are influenced by actual MC, a number of other wood variables, environmental conditions, geometry of the measuring probe circuitry, and design of the meter. The maximum accuracy can only be obtained by an awareness of the effect of each parameter on the meter output and correction of readings as specified by this test method. This test method employs controlled conditions and straight-grain, clear wood specimens to provide measurements that are reproducible in a laboratory. The controlled conditions prevent moisture and temperature gradients in the test specimen. In laboratory calibration, the reference direct moisture measurements (for example, Test Methods D 4442) shall be made only in the area of direct measurement of the meter. This minimizes error associated with sampling of differing areas of measurement between this test method and that of the reference (Test Methods D 4442). Most uses of hand-held moisture meters employ correlative (predictive) relationships between the meter reading and wood areas or volumes that exceed that of the direct meter measurement (for example, larger specimens, pieces of lumber, or lots). These correlative relationships are beyond the scope of this test method. (See Practice D 7438.)1.1 This test method applies to the measurement of moisture content (MC) of solid wood products, including those containing additives (that is, chemicals or adhesives) for laboratory standardization and calibration of hand-held moisture meters 1.2 This test method makes no distinction between meter measurement technologies for standardization and calibration requirements. Provision is made for test specimen size to accommodate specific meters. Appendix X1 provides an explanatory discussion and history corresponding to the mandatory sections. Fundamental measurement technologies are described in Appendix X2 when available. 1.2.1 Meters employing differing technologies may not provide equivalent readings under the same conditions. When this test method has been applied, it is assumed that the referenced meter is acceptable unless otherwise specified. Meters shall be calibrated with respect to MC by direct measurement as determined by Test Methods D 4442. 1.3 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 Test Method for Laboratory Standardization and Calibration of Hand-Held Moisture Meters

ICS
07.060 (Geology. Meteorology. Hydrology)
CCS
N50
发布
2008
实施

Viscosity at the shear rate and temperature of this test method is thought to be particularly representative of bearing conditions in large medium speed reciprocating engines as well as automotive and heavy duty engines operating in this temperature regime. The importance of viscosity under these conditions has been stressed in railroad specifications.1.1 This test method covers the laboratory determination of the viscosity of engine oils at 100°C and 1·106s–1 using the Tapered Bearing Simulator (TBS) viscometer. Note 18212;This test method is similar to Test Method D 4683 which uses the same TBS viscometer to measure high shear viscosity at 150°C. 1.2 The Newtonian calibration oils used to establish this test method range from approximately 5 to 12 mPa·s (cP) at 100°C and either the manual or automated protocol was used by each participant in developing the precision statement. The viscosity range of the test method at this temperature is from 1 mPa·s (cP) to above 25 mPa·s (cP), depending on the model of TBS. 1.3 The non-Newtonian reference oil used to establish the shear rate of 1·106s–1 for this test method has a viscosity of approximately 10 mPa·s at 100°C. 1.4 Application to petroleum products other than engine oil has not been determined in preparing the viscometric information for this test method. 1.5 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. This test method uses the milliPascal second (mPa·s) as the unit of viscosity. This unit is equivalent to the centiPoise (cP), which is shown in parentheses. 1.6 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 to determine the applicability of regulatory limitations prior to use.

Standard Test Method for Measuring Viscosity at High Shear Rate by Tapered Bearing Simulator Viscometer at 100x00B0;C

ICS
17.060 (Measurement of volume, mass, density, visc
CCS
N50
发布
2007
实施

This standard is intended to apply to silicon devices. This standard defines the requirements for the component qualification package which the supplier provides to the customer. It is intended to establish a minimum set of data elements, rather than to define the full range of possible customer information requests. Customers who require additional information will have to negotiate these requests with the supplier. This standard does not define which qualification method be followed (e.g., JESD47, JESD94, JP001, or JESD201), what tests must be performed, nor the qualification performance levels (e.g. reliability or quality) that a component must satisfy. Rather, it establishes a set of data elements that describes the component. It requests the supplier to provide the test results of their qualification efforts. Customers are responsible for determining the extent to which supplier provided information will be used as part of their qualification process.

Information Requirements for the Qualification of Silicon Devices

ICS
CCS
N50
发布
2007
实施



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