N53 电化学、热化学、光学式分析仪器 标准查询与下载



共找到 281 条与 电化学、热化学、光学式分析仪器 相关的标准,共 19

1.1 This guide describes basic procedures that can be used to develop spectrophotometer performance tests. The guide is intended to be applicable to spectrophotometers operating in the ultraviolet, visible, near-infrared and mid-infrared regions. 1.2 This guide is not intended as a replacement for specific practices such as Practices E275, E925, E932, E958, E1421, or E1683 that exist for measuring performance of specific types of spectrophotometers. Instead, this guide is intended to provide guidelines in how similar practices should be developed when specific practices do not exist for a particular spectrophotometer type, or when specific practices are not applicable due to sampling or safety concerns. This guide can be used to develop performance tests for on-line process spectrophotometers. 1.3 This guide describes univariate level zero and level one tests, and multivariate level A and level B tests which can be implemented to measure spectrophotometer performance. These tests are designed to be used as rapid, routine checks of spectrophotometer performance. They are designed to uncover malfunctions or other changes in instrument operation, but do not specifically diagnose or quantitatively assess the malfunction or change. The tests are not intended for the comparison of spectrophotometers of different manufacture. 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 Guide for Establishing Spectrophotometer Performance Tests

ICS
CCS
N53
发布
1997
实施

1.1 This guide describes basic procedures that can be used to develop spectrophotometer performance tests. The guide is intended to be applicable to spectrophotometers operating in the ultraviolet, visible, near-infrared and mid-infrared regions.1.2 This guide is not intended as a replacement for specific practices such as Practices E 275, E 925, E 932, E 958, E 1421, or E 1683 that exist for measuring performance of specific types of spectrophotometers. Instead, this guide is intended to provide guidelines in how similar practices should be developed when specific practices do not exist for a particular spectrophotometer type, or when specific practices are not applicable due to sampling or safety concerns. This guide can be used to develop performance tests for on-line process spectrophotometers.1.3 This guide describes univariate level zero and level one tests, and multivariate level A and level B tests which can be implemented to measure spectrophotometer performance. These tests are designed to be used as rapid, routine checks of spectrophotometer performance. They are designed to uncover malfunctions or other changes in instrument operation, but do not specifically diagnose or quantitatively assess the malfunction or change. The tests are not intended for the comparison of spectrophotometers of different manufacture.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 Guide for Establishing Spectrophotometer Performance Tests

ICS
17.180.30 (Optical measuring instruments); 71.040.
CCS
N53
发布
1997
实施

If ASTM Committee E13 has not specified an appropriate test procedure for a specific type of spectrophotometer, or if the sample specified by a Committee E13 procedure is incompatible with the intended spectrophotometer operation, then this guide can be used to develop practical performance tests. 4.1.1 For spectrophotometers which are equipped with permanent or semi-permanent sampling accessories, the test sample specified in a Committee E13 practice may not be compatible with the spectrophotometer configuration. For example, for FT-MIR instruments equipped with transmittance or IRS flow cells, tests based on polystyrene films are impractical. In such cases, these guidelines suggest means by which the recommended test procedures can be modified so as to be performed on a compatible test material. 4.1.2 For spectrophotometers used in process measurements, the choice of test materials may be limited due to process contamination and safety considerations. These guidelines suggest means of developing performance tests based on materials which are compatible with the intended use of the spectrophotometer. Tests developed using these guidelines are intended to allow the user to compare the performance of a spectrophotometer on any given day with prior performance. The tests are intended to uncover malfunctions or other changes in instrument operation, but they are not designed to diagnose or quantitatively assess the malfunction or change. The tests are not intended for the comparison of spectrophotometers of different manufacture.1.1 This guide covers basic procedures that can be used to develop spectrophotometer performance tests. The guide is intended to be applicable to spectrophotometers operating in the ultraviolet, visible, near-infrared and mid-infrared regions. 1.2 This guide is not intended as a replacement for specific practices such as Practices E 275, E 925, E 932, E 958, E 1421, or E 1683 that exist for measuring performance of specific types of spectrophotometers. Instead, this guide is intended to provide guidelines in how similar practices should be developed when specific practices do not exist for a particular spectrophotometer type, or when specific practices are not applicable due to sampling or safety concerns. This guide can be used to develop performance tests for on-line process spectrophotometers. 1.3 This guide describes univariate level zero and level one tests, and multivariate level A and level B tests which can be implemented to measure spectrophotometer performance. These tests are designed to be used as rapid, routine checks of spectrophotometer performance. They are designed to uncover malfunctions or other changes in instrument operation, but do not specifically diagnose or quantitatively assess the malfunction or change. The tests are not intended for the comparison of spectrophotometers of different manufacture. 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 Guide for Establishing Spectrophotometer Performance Tests

ICS
71.040.50 (Physicochemical methods of analysis)
CCS
N53
发布
1997
实施

The document is intended to specify the terminology, definitions, requirements for statements by manufacturers and performance tests for analzers, sensor units and electronic units for the determination of the redox potential of aqueous solutions.#,,#

Expression of performance of electrochemical analyzers - Part 5: Oxidation-reduction potential or redox potential (IEC 60746-5:1992)

ICS
71.040.50
CCS
N53
发布
1996-07
实施

Expression of performance of electrochemical analyzers - Part 4: Dissolved oxygen in water measured by membrane covered amperometric sensors (IEC 60746-4:1992)

ICS
CCS
N53
发布
1996-07
实施

1.1 This practice covers the use of an electron-capture detector (ECD) as the detection component of a gas chromatographic system. 1.2 This practice is intended to describe the operation and performance of the ECD as a guide for its use in a complete chromatographic system. 1.3 For general gas chromatographic procedures, Practice E260 or Practice E1510 should be followed except where specific changes are recommended in this practice for use of an ECD. For a definition of gas chromatography and its various terms, see Practice E355. These standards also describe the performance of the detector in terms which the analyst can use to predict overall system performance when the detector is coupled to the column and other chromatographic components. 1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.5 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. For specific safety information, see Section 3.

Standard Practice for Use of Electron-Capture Detectors in Gas Chromatography

ICS
71.040.50 (Physicochemical methods of analysis)
CCS
N53
发布
1996
实施

Most commercial reflectometers and spectrophotometers with reflectance capability measure relative reflectance. The instrument reading is the ratio of the measured radiation reflected from the reference specimen to the measured radiation reflected by the test specimen. That ratio is dependent on specific instrument parameters. National standardizing laboratories and some research laboratories measure reflectance on instruments calibrated from basic principles, thereby establishing a scale of absolute reflectance as described in CIE Publication No. 44 (5). These measurements are sufficiently difficult and of prohibitive cost that they are usually left to laboratories that specialize in them. A standard that has been measured on an absolute scale could be used to transfer that scale to a reflectometer. While such procedures exist, the constraints placed on the mechanical properties restrict the suitability of some of the optical properties, especially those properties related to the geometric distribution of reflected radiation. Thus, reflectance factor standards that are sufficiently rugged or cleanable to use as permanent transfer standards, with the exception of the sintered PTFE standards, depart considerably from the perfect diffuser in the geometric distribution of reflected radiation. The geometric distribution of reflected radiance from such standards is sufficiently diffuse that such a standard can provide a dependable calibration of a directional-hemispherical or certain directional-directional reflectometers. Although pressed powder standards are subject to contamination and breakage, the reflectance factor of pressed powder can be sufficiently reproducible from specimen to specimen from a given lot of powder to allow the assignment of absolute reflectance factor values to all of the powder in a lot. Sintered PTFE materials exhibit sufficient reproducibility from within the same specimen after resurfacing or cleaning the specimen to allow the assignment of absolute reflectance factor values. Preparation of packed powder reflectance standards is covered in Practice E 259. This practice describes the spectral and physical properties of these materials and of the sintered PTFE materials.1.1 This practice covers procedures for the preparation and use of acceptable transfer standards for NIR spectrophotometers. Procedures for calibrating the reflectance factor of materials on an absolute basis are contained in CIE Publication No. 44 (9). Both the pressed powder samples and the sintered PTFE materials are used as transfer standards for such calibrations because they have very stable reflectance factors that are nearly constant with wavelength and because the distribution of flux resembles closely that from the perfect reflecting diffuser. 1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only. 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 Practice for Transfer Standards for Reflectance Factor for Near-Infrared Instruments Using Hemispherical Geometry

ICS
37.020 (Optical equipment)
CCS
N53
发布
1996
实施

1.1 This practice covers the radiological examination of unique materials or processes, or both, for which conventionally designed image quality indicators (IQIs), such as those described in Practices E 747 and E 1025, may be inadequate in controlling the quality and repeatability of the radiological image. 1.2 Where appropriate, representative image quality indicators (RQIs) may also represent criteria levels of the acceptance or rejection of images of discontinuities. 1.3 This practice is applicable to most radiological methods of examination. 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 Controlling Quality of Radiological Examination by Using Representative Quality Indicators (RQIs)

ICS
19.100 (Non-destructive testing); 77.040.20 (Non-d
CCS
N53
发布
1996
实施

1.1 This practice is intended to serve as a guide for the use of an electron-capture detector (ECD) as the detection component of a gas chromatographic system. 1.2 This practice is intended to describe the operation and performance of the ECD as a guide for its use in a complete chromatographic system. 1.3 For general gas chromatographic procedures, Practice E260or Practice E1510 should be followed except where specific changes are recommended herein for the use of an ECD. For definition of gas chromatography and its various terms, see Practice E355. These standards also describe the performance of the detector in terms which the analyst can use to predict overall system performance when the detector is coupled to the column and other chromatographic components. 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. For specific safety information, see Section 3.

Standard Practice for Use of Electron-Capture Detectors in Gas Chromatography

ICS
71.040.50 (Physicochemical methods of analysis)
CCS
N53
发布
1996
实施

1.1 This practice is intended to serve as a guide for the use of an electron-capture detector (ECD) as the detection component of a gas chromatographic system. 1.2 This practice is intended to describe the operation and performance of the ECD as a guide for its use in a complete chromatographic system. 1.3 For general gas chromatographic procedures, Practice E260or Practice E1510 should be followed except where specific changes are recommended herein for the use of an ECD. For definition of gas chromatography and its various terms, see Practice E355. These standards also describe the performance of the detector in terms which the analyst can use to predict overall system performance when the detector is coupled to the column and other chromatographic components. 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. For specific safety information, see Section 3.

Standard Practice for Use of Electron-Capture Detectors in Gas Chromatography

ICS
CCS
N53
发布
1996
实施

1.1 This guide is intended for use in establishing the operating characteristics of a visual display unit (VDU), such as a cathode ray tube (CRT). Those characteristics define the relationship between the digital information supplied by a computer, which defines an image, and the resulting spectral radiant exitance and CIE tristimulus values. The mathematical description of this relationship can be used to provide a nearby device-independent model for the accurate display of color and colored images on the VDU. The CIE tristimulus values referred to here are those calculated from the CIE 1931 2176 standard colorimetric (photopic) observer. 1.2 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 Guide for Modeling the Colorimetric Properties of a Visual Display Unit

ICS
17.180.20 (Colours and measurement of light); 35.1
CCS
N53
发布
1996
实施

1.1 This guide is intended for use in establishing the operating characteristics of a visual display unit (VDU), such as a cathode ray tube (CRT). Those characteristics define the relationship between the digital information supplied by a computer, which defines an image, and the resulting spectral radiant exitance and CIE tristimulus values. The mathematical description of this relationship can be used to provide a nearby device-independent model for the accurate display of color and colored images on the VDU. The CIE tristimulus values referred to here are those calculated from the CIE 1931 2176 standard colorimetric (photopic) observer. 1.2 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 Guide for Modeling the Colorimetric Properties of a Visual Display Unit

ICS
CCS
N53
发布
1996
实施

1.1 This practice covers the optimization of flame atomic absorption spectrometers and the checking of spectrometer performance criteria. 1.2 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. For specific hazards associated with the use of this practice see Practices E50 and warning statement included in this practice.

Standard Practice for Optimization of Flame Atomic Absorption Spectrometric Equipment

ICS
71.040.50 (Physicochemical methods of analysis)
CCS
N53
发布
1996
实施

1.1 This practice covers the use of an electron-capture detector (ECD) as the detection component of a gas chromatographic system.1.2 This practice is intended to describe the operation and performance of the ECD as a guide for its use in a complete chromatographic system.1.3 For general gas chromatographic procedures, Practice E 260 or Practice E 1510 should be followed except where specific changes are recommended in this practice for use of an ECD. For a definition of gas chromatography and its various terms, see Practice E 355. These standards also describe the performance of the detector in terms which the analyst can use to predict overall system performance when the detector is coupled to the column and other chromatographic components.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. For specific safety information, see Section .

Standard Practice for Use of Electron-Capture Detectors in Gas Chromatography

ICS
71.040.50 (Physicochemical methods of analysis)
CCS
N53
发布
1996
实施

Most commercial reflectometers and spectrophotometers with reflectance capability measure relative reflectance. The instrument reading is the ratio of the measured radiation reflected from the reference specimen to the measured radiation reflected by the test specimen. That ratio is dependent on specific instrument parameters. National standardizing laboratories and some research laboratories measure reflectance on instruments calibrated from basic principles, thereby establishing a scale of absolute reflectance as described in CIE Publication No. 44 (5). These measurements are sufficiently difficult and of prohibitive cost that they are usually left to laboratories that specialize in them. A standard that has been measured on an absolute scale could be used to transfer that scale to a reflectometer. While such procedures exist, the constraints placed on the mechanical properties restrict the suitability of some of the optical properties, especially those properties related to the geometric distribution of reflected radiation. Thus, reflectance factor standards that are sufficiently rugged or cleanable to use as permanent transfer standards, with the exception of the sintered PTFE standards, depart considerably from the perfect diffuser in the geometric distribution of reflected radiation. The geometric distribution of reflected radiance from such standards is sufficiently diffuse that such a standard can provide a dependable calibration of a directional-hemispherical or certain directional-directional reflectometers. Although pressed powder standards are subject to contamination and breakage, the reflectance factor of pressed powder can be sufficiently reproducible from specimen to specimen from a given lot of powder to allow the assignment of absolute reflectance factor values to all of the powder in a lot. Sintered PTFE materials exhibit sufficient reproducibility from within the same specimen after resurfacing or cleaning the specimen to allow the assignment of absolute reflectance factor values. Preparation of packed powder reflectance standards is covered in Practice E 259. This practice describes the spectral and physical properties of these materials and of the sintered PTFE materials.1.1 This practice covers procedures for the preparation and use of acceptable transfer standards for NIR spectrophotometers. Procedures for calibrating the reflectance factor of materials on an absolute basis are contained in CIE Publication No. 44 (9). Both the pressed powder samples and the sintered PTFE materials are used as transfer standards for such calibrations because they have very stable reflectance factors that are nearly constant with wavelength and because the distribution of flux resembles closely that from the perfect reflecting diffuser. 1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only. 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 Practice for Transfer Standards for Reflectance Factor for Near-Infrared Instruments Using Hemispherical Geometry

ICS
37.020 (Optical equipment)
CCS
N53
发布
1996
实施

本标准规定了玻璃电极的产品分类、技术要求、试验方法、检验规则、标志、包装、运输、贮存等。 本标准适用于检测水溶液中pH值的玻璃电极。

Glass electrode for pH measurement

ICS
CCS
N53
发布
1995-11-10
实施
1996-07-01

本标准规定了医用电解质钠、钾分析仪的技术要求、试验方法、检验规则及标志、包装、运输、贮存等。 本标准适用于用离子选择电极(ISE)测量的电解质钠、钾分析仪。它用于测量全血、血清、血浆、稀释尿中的钠、钾离子。 本标准也适用于电解质多项分析仪中的钠钾离子。

Analyzer of electrolyte natrium and potassium

ICS
71.040.10
CCS
N53
发布
1994-08
实施
1995-05-01

本标准规定了热天平的分类、技术要求、试验方法、检验规则、标志、包装、运输和贮存等。 本标准适用于立式常压中温类、立式常压高温类热天平。 本标准不适用于常压低温类仪器。

Thermobalance

ICS
71.040.10
CCS
N53
发布
1994-08
实施
1995-05-01

本标准规定了工业电导率仪的产品分类、技术要求、试验方法、检验规则、标志、包装、运输、贮存等。 本标准适用于以电导电极测定电解质溶液电导率的工业电导率仪。

Industrial conductivity meter

ICS
17.040.30
CCS
N53
发布
1993-07-09
实施
1994-01-01

本标准规定了pH计和离子计的影响量及试验方法。 本标准适用于以pH玻璃电极为传感器的pH计和以离子选择电极为传感器的离子计。

Test method of pH meter and ionometer

ICS
71.040.01
CCS
N53
发布
1993-07-09
实施
1994-01-01



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