17.200.10 热、量热学 标准查询与下载



共找到 289 条与 热、量热学 相关的标准,共 20

1.1 General When EN1434 was being prepared, much useful information and practical advice concerning the choice and installation of heat meters was received. Though unsuitable for inclusion in the standard it is given here to help heat meter users. 1.2 Explanations of terms For the purposes of this report, in addition to the definitions in EN1434, the following terms and symbols apply 1.2.1 DH (network) District heating systems 1.2.2 Meter Heat (energy) meter 1.2.3 Water Sanitary water 1.2.4 Warm water Sanitary warm water 1.2.5 Make up liquid Liquid for refilling leakage of heat conveying liquid 1.2.6 Liquid Heat conveying liquid in a DH system.

Heat meter installation — Some guidelines for selecting, installation and operation of heat meters

ICS
17.200.10
CCS
N11
发布
1999-07
实施

1.1 This test method covers the procedure for determining the oxidative properties of hydrocarbons by differential scanning calorimetry or pressure differential scanning calorimetry and is applicable to hydrocarbons, which oxidize exothermically in their analyzed form.1.2 Computer or electronic-based instruments, techniques, or data treatment equivalent to this test method may also be used.Note 1Users of this test method are expressly advised that all such instruments or techniques may not be equivalent. It is the responsibility of the user of this standard to determine the necessary equivalency prior to use.1.3 Test Method A A differential scanning calorimeter (DSC) is used at ambient pressure, for example, 0.1 MPa or one atmosphere of oxygen.1.4 Test Method B A pressure DSC (PDSC) is used at high pressure, for example, 3.5 MPa (500 psig) oxygen.1.5 The values stated in SI units are regarded as the standard.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 Oxidation Onset Temperature of Hydrocarbons by Differential Scanning Calorimetry

ICS
17.200.10
CCS
发布
1999-03-10
实施

This test method permits interlaboratory comparison and intralaboratory correlation of instrumental temperature scale data. Dielectric analyzers are used to characterize a broad range of materials that possess dielectric moments. One of the desired values to be assigned by the measurement is the temperature at which significant changes occur in the properties of the test specimen. In order to obtain consistent results from one period of time to another and from one laboratory to another, the temperature signal from the apparatus must be calibrated accurately over the temperature range of interest.1.1 This test method covers the temperature calibration of dielectric analyzers over the temperature range from -100 to 300176C and is applicable to commercial and custom-built apparatus. The calibration is performed by observing the melting transition of standard reference materials having known transition temperatures within the temperature range of use. 1.2 Electronic instrumentation or automated data analysis and data reductions systems or treatment equivalent to this test method may be used. 1.3 The values stated in SI units are to be reported as 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 to determine the applicability of regulatory limitations prior to use.

Standard Test Method for Temperature Calibration of Dielectric Analyzers

ICS
17.200.10
CCS
N11
发布
1999
实施

1.1 This practice covers the determination of the steady-state heat flow through the meter section of a specimen when a guarded-hot-plate apparatus or thin-heater apparatus is used in the single-sided mode of operation.1.2 This practice provides a supplemental procedure for use in conjunction with either Test Method C 177 or C 1114 for testing a single specimen. This practice is limited to only the single-sided mode of operation, and, in all other particulars, the requirements of either Test Method C 177 or C 1114 apply.Note 18212;Test Methods C 177 and C 1114 describe the use of the guarded-hot-plate and thin-heater apparatus, respectively, for determining steady-state heat flux and thermal transmission properties of flat-slab specimens. In principle, these methods cover both the double- and single-sided mode of operation, and at present, do not distinguish between the accuracies for the two modes of operation. When appropriate, thermal transmission properties shall be calculated in accordance with Practice C 1045.1.3 This practice requires that the cold plates of the apparatus have independent temperature controls. For the single-sided mode of operation, a (single) specimen is placed between the hot plate and the cold plate. Auxiliary thermal insulation, if needed, is placed between the hot plate and the auxiliary cold plate. The auxiliary cold plate and the hot plate are maintained at essentially the same temperature. Ideally, the heat flow from the meter plate is assumed to flow only through the specimen, so that the thermal transmission properties correspond only to the specimen.Note 28212;The double-sided mode of operation requires similar specimens placed on either side of the hot plate. The cold plates that contact the outer surfaces of these specimens are maintained at essentially the same temperature. The electric power supplied to the meter plate is assumed to result in equal heat flow through the meter section of each specimen, so that the thermal transmission properties correspond to an average for the two specimens.1.4 This practice does not preclude the use of a guarded-hot-plate apparatus in which the auxiliary cold plate may be either larger or smaller in lateral dimensions than either the test specimen or the cold plate.Note 38212;Most guarded-hot-plate apparatus are designed for the double-sided mode of operation (). Consequently, the cold plate and the auxiliary cold plate are the same size and the specimen and the auxiliary insulation will have the same lateral dimensions, although the thickness may be different. Some guarded-hot-plate apparatus, however, are designed specifically for testing only a single specimen that may be either larger or smaller in lateral dimensions than that auxiliary insulation or the auxiliary cold plate.1.5 This practice can be used for both low- and high-temperature conditions.1.6 This practice shall not be used when operating an apparatus in a double-sided mode of operation with a known and unknown specimen, that is, with the two cold plates at similar temperatures so that the temperature differences across the known and unknown specimens are similar.1.7 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 Using a Guarded-Hot-Plate Apparatus or Thin-Heater Apparatus in the Single-Sided Mode

ICS
17.200.10
CCS
K61
发布
1998
实施

This European Standard applies to heat meters, that is to instruments intended for measuring the heat which, in a heat-exchange circuit, is absorbed or given up by a liquid called the heat-conveying liquid. The heat meter indicates quantity of heat in legal units. Electrical safety requirements for the meter itself are not covered by this standard. Pressure safety requirements are not covered by this standard. Surface mounted sensors are not covered by this standard. Part 1 specifies general requirements.

Heat meters - Installation, commissioning, operational monitoring and maintenance

ICS
17.200.10
CCS
A54
发布
1997-09-15
实施
1997-09-15

Electrical safety requirements are not covered by this standard.

Heat meters - General requirements

ICS
17.200.10
CCS
A54
发布
1997-09-15
实施
1997-09-15

Electrical safety requirements are not covered by this standard.

Heat meters - Constructional requirements

ICS
17.200.10
CCS
A54
发布
1997-09-15
实施
1997-09-15

Specifies the means for data exchange between a heat meter and a read-out device, or between several meters and one master unit in a local network.

Heat meters - Data exchange and interfaces

ICS
17.200.10
CCS
A54
发布
1997-09-15
实施
1997-09-15

This European Standard applies to heat meters, that is to instruments intended for measuring the heat which, in a heat-exchange circuit, is absorbed or given up by a liquid called the heat-conveying liquid. The meter indicates heat quantity in legal units. Electrical safety requirements are not covered by this standard. Meters with surface-mounted temperature sensors are not yet included in this standard. Part 4 specifies pattern approval tests.

Heat meters - Pattern approval tests

ICS
17.200.10
CCS
A54
发布
1997-09-15
实施
1997-09-15

This European Standard applies to heat meters, that is to instruments intended for measuring the heat which, in a heat-exchange circuit, is absorbed or given up by a liquid called the heat-conveying liquid. The heat meter indicates heat quantity in legal units. Electrical safety requirements are not covered by this standard. Meters with surface-mounted temperature sensors are not yet included in this standard. This Part of this European Standard specifies the initial verification which is intended to ensure that heat meters which are put into service conform to an approved pattern and to regulations, i.e. they have specified metrological characteristics within the limits of the maximum permissible errors, and function properly.

Heat meters - Initial verification tests

ICS
17.200.10
CCS
A54
发布
1997-09-15
实施
1997-09-15

Heat meters. Part 6 : heat meter installation, commissioning, operational monitoring and maintenance.

ICS
17.200.10
CCS
N11
发布
1997-08-01
实施
1997-08-05

Heat meters. Part 3 : data exchange and interfaces.

ICS
17.200.10
CCS
N11
发布
1997-08-01
实施
1997-08-05

Heat meters. Part 2 : constructional requirements.

ICS
17.200.10
CCS
N11
发布
1997-08-01
实施
1997-08-05

Heat meters. Part 4 : pattern approval tests.

ICS
17.200.10
CCS
N11
发布
1997-08-01
实施
1997-08-05

Heat meters. Part 5 : initial verification tests.

ICS
17.200.10
CCS
N11
发布
1997-08-01
实施
1997-08-05

この規格は,温度測定に使用する白金測温抵抗体(以下,測温抵抗体という。)について規定する。

Resistance thermometer sensors

ICS
17.200.10
CCS
L13
发布
1997-03-20
实施

The infrared energy that is reflected by a specimen can cause measurement errors for an infrared thermographer measuring its surface temperature. Two test methods are provided for measuring and compensating for this reflected temperature error source, the Reflector Method and the Direct Method. These test methods can be used in the field or laboratory using commonly available materials. These test methods can be used with any infrared radiometers that have the required computer capabilities.1.1 These test methods cover procedures for measuring and compensating for reflected temperature when measuring the surface temperature of a specimen with an infrared imaging radiometer. 1.2 These test methods may involve use of equipment and materials in the presence of heated or electrically energized equipment, or both. 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 Methods for Measuring and Compensating for Reflected Temperature Using Infrared Imaging Radiometers

ICS
17.200.10
CCS
N11
发布
1997
实施

Prezentul standard stabile?te condi?iile tehnice referitoare la materiale, aspect exterior, construc?ie, utilizare ?i exactitate ce trebuie ?ndeplinite de calorimetrele cu bomb? utilizate la m?surarea puterii calorifice superioare a combustibililor, confo

Bomb calorimeters

ICS
17.200.10
CCS
发布
1996-07-01
实施

State system for ensuring the uniformity of measurements. State verification schedule for means measuring energy of combustion and specific energy of combustion (combustion calorimeters)

ICS
17.200.10
CCS
发布
1996
实施
1998-01-01

5.1 This test method provides a standard method for evaluating the performance of sonic anemometer/thermometers that use inverse time solutions to measure wind velocity components and the speed of sound. It provides an unambiguous determination of instrument performance criteria. The test method is applicable to manufacturers for the purpose of describing the performance of their products, to instrumentation test facilities for the purpose of verifying instrument performance, and to users for specifying performance requirements. The acoustic pathlength procedure is also applicable for calibration purposes prior to data collection. Procedures for operating a sonic anemometer/thermometer are described in Practice D5527. 5.2 The sonic anemometer/thermometer array is assumed to have a sufficiently high structural rigidity and a sufficiently low coefficient of thermal expansion to maintain an internal alignment to within the manufacturer's specifications over its designed operating range. Consult with the manufacturer for an internal alignment verification procedure and verify the alignment before proceeding with this test method. 5.3 This test method is designed to characterize the performance of an array model or probe design. Transducer shadow data obtained from a single array is applicable for all instruments having the same array model or probe design. Some non-orthogonal arrays may not require specification of transducer shadow corrections or the velocity calibration range. 1.1 This test method covers the determination of the dynamic performance of a sonic anemometer/thermometer which employs the inverse time measurement technique for velocity or speed of sound, or both. Performance criteria include: (a) acceptance angle, (b) acoustic pathlength, (c) system delay, (d) system delay mismatch, (e) thermal stability range, (f) shadow correction, (g) velocity calibration range, and (h) velocity resolution. 1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 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 Determining the Performance of a Sonic Anemometer/Thermometer

ICS
17.200.10
CCS
发布
1996
实施



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