ImageVerifierCode 换一换
格式:PDF , 页数:10 ,大小:182.75KB ,
资源ID:533715      下载积分:5000 积分
快捷下载
登录下载
邮箱/手机:
温馨提示:
如需开发票,请勿充值!快捷下载时,用户名和密码都是您填写的邮箱或者手机号,方便查询和重复下载(系统自动生成)。
如填写123,账号就是123,密码也是123。
特别说明:
请自助下载,系统不会自动发送文件的哦; 如果您已付费,想二次下载,请登录后访问:我的下载记录
支付方式: 支付宝扫码支付 微信扫码支付   
注意:如需开发票,请勿充值!
验证码:   换一换

加入VIP,免费下载
 

温馨提示:由于个人手机设置不同,如果发现不能下载,请复制以下地址【http://www.mydoc123.com/d-533715.html】到电脑端继续下载(重复下载不扣费)。

已注册用户请登录:
账号:
密码:
验证码:   换一换
  忘记密码?
三方登录: 微信登录  

下载须知

1: 本站所有资源如无特殊说明,都需要本地电脑安装OFFICE2007和PDF阅读器。
2: 试题试卷类文档,如果标题没有明确说明有答案则都视为没有答案,请知晓。
3: 文件的所有权益归上传用户所有。
4. 未经权益所有人同意不得将文件中的内容挪作商业或盈利用途。
5. 本站仅提供交流平台,并不能对任何下载内容负责。
6. 下载文件中如有侵权或不适当内容,请与我们联系,我们立即纠正。
7. 本站不保证下载资源的准确性、安全性和完整性, 同时也不承担用户因使用这些下载资源对自己和他人造成任何形式的伤害或损失。

版权提示 | 免责声明

本文(ASTM E879-2001(2007) Standard Specification for Thermistor Sensors for Clinical Laboratory Temperature Measurements《临床实验室温度测量用热敏电阻探测器标准规范》.pdf)为本站会员(rimleave225)主动上传,麦多课文库仅提供信息存储空间,仅对用户上传内容的表现方式做保护处理,对上载内容本身不做任何修改或编辑。 若此文所含内容侵犯了您的版权或隐私,请立即通知麦多课文库(发送邮件至master@mydoc123.com或直接QQ联系客服),我们立即给予删除!

ASTM E879-2001(2007) Standard Specification for Thermistor Sensors for Clinical Laboratory Temperature Measurements《临床实验室温度测量用热敏电阻探测器标准规范》.pdf

1、Designation: E 879 01 (Reapproved 2007)Standard Specification forThermistor Sensors for Clinical Laboratory TemperatureMeasurements1This standard is issued under the fixed designation E 879; the number immediately following the designation indicates the year oforiginal adoption or, in the case of re

2、vision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification covers the general requirements fornegative temperature coefficient thermistor

3、-type sensors in-tended to be used for clinical laboratory temperature measure-ments or control, or both, within the range from 10 to 105 C.1.2 This specification also covers the detailed requirementsfor ASTM designated sensors.1.3 This standard does not purport to address all of thesafety concerns,

4、 if any, associated with its use. It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2E 344 Terminology Relating to Thermometry an

5、d Hydrom-etryE 563 Practice for Preparation and Use of an Ice-Point Bathas a Reference TemperatureF 29 Specification for Dumet Wire for Glass-to-Metal SealApplications3. Terminology3.1 DefinitionsThe definitions given in TerminologyE 344 shall apply to this specification.3.2 Definitions of Terms Spe

6、cific to This Standard:3.2.1 dissipation constant, d, nthe ratio of the change inenergy dissipated per unit time (power) in a thermistor,DP = P2 P1, to the resultant temperature change of thethermistor, DT = T2 T1.d5DPDT(1)The dimensions of the dissipation constant are W/K.For this specification, T1

7、is in the range from 20 to 38 C andDT = 10 C.3.2.2 dumet, nround, copper-coated 42 % nickel-ironwire intended primarily for sealing to soft glass.Also known asCuNiFe in some communities.3.2.3 insulation resistance, dc, nthe resistance at a speci-fied direct-current voltage between the insulated lead

8、s of athermistor sensor and the metallic enclosure of the sensor, ifsuch an enclosure is present, or else between the sensor leadsand a conductive medium in which the sensor is immersed.3.2.4 qualification test, na series of tests conducted by theprocuring agency or an agent thereof to determine con

9、form-ance of thermistor sensors to the requirements of a specifica-tion, normally for the development of a qualified products listunder the specification.3.2.5 response time, nthe time required for a sensor tochange a specified percentage of the total difference betweenits initial and final temperat

10、ures as determined from zero-power resistances when the sensor is subjected to a stepfunction change in temperature.3.2.6 time constant, nthe 63.2 % response time of asensor that exhibits a single-exponential response.3.2.7 zero-power resistance, nthe dc resistance of a de-vice, at a specified tempe

11、rature, calculated for zero-power.3.2.7.1 DiscussionAccurate zero-power resistance is ob-tained by extrapolating to zero-power the resistance valuesobtained from measurements at three or more levels of powerwith the sensor immersed in a constant temperature medium.For the purpose of this specificati

12、on, this is obtained frommeasurements at a single power level adjusted such that thepower is not greater than one-fifth the product of the dissipa-tion constant specified in Table 1 (see 3.2.1 and 7.3) and theappropriate tolerance requirement of Table 2. When makingstability measurements, the power

13、shall be kept constant.4. Classification4.1 Thermistor sensors covered by this specification shall beclassified with a type designation code that includes theASTMdetailed specification number followed by a descriptive code.See Fig. 1.1This specification is under the jurisdiction of ASTM Committee E2

14、0 onTemperature Measurement and is the direct responsibility of Subcommittee E20.08on Medical Thermometry.Current edition approved May 1, 2007. Published June 2007. Originallyapproved in 1982. Last previous edition approved in 2001 as E 879 01.2For referenced ASTM standards, visit the ASTM website,

15、www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.TA

16、BLE 1 Specification for ASTM Clinical Laboratory Thermistor SensorsASTM No. E 879 S B1N E 879 E B1N E 879 S B2N E 879 E B2NDescription Silicone Rubber Coated GlassProbeEpoxy Coated Glass Probe Silicone Rubber Coated GlassProbeEpoxy Coated Glass ProbeMajor Application General Purpose ClinicalLaborato

17、ry TemperatureMeasurementGeneral Purpose ClinicalLaboratory TemperatureMeasurementGeneral Purpose ClinicalLaboratory TemperatureMeasurementGeneral Purpose ClinicalLaboratory TemperatureMeasurementOperating Temperature Range 10 to 60 C 10 to 60 C 10 to 60 C 10 to 60 CAccuracy Class 1 (60.01 C) 1 (60.

18、01 C) 2 (60.02 C) 2 (60.02 C)Temperatures for Accuracy Class 10 to 60 C 10 to 60 C 10 to 60 C 10 to 60 CAccuracies for other TemperaturesWithin Specified TemperatureRangeCalibration Type Non-interchangeable Non-interchangeable Non-interchangeable Non-interchangeableNominal R-T CharacteristicR = expA

19、0+ A1/T + A2/T2+A3/T3 (T in kelvins)T( C) = a0+a1LnR +a2(LnR)2+a3(LnR)31 273.15A04.4495078 4.4495078 4.4495078 4.4495078A13614.7764 3614.7764 3614.7764 3614.7764A288190.906 88190.906 88190.906 88190.906A322328247 22328247 22328247 22328247a00.11766716 3 1020.11766716 3 1020.11766716 3 1020.11766716

20、3 102a10.28173082 3 1030.28173082 3 1030.28173082 3 1030.28173082 3 103a20.23285292 3 1050.23285292 3 1050.23285292 3 1050.23285292 3 105a30.24131652 3 1060.24131652 3 1060.24131652 3 1060.24131652 3 106Type of Immersion Fluid water, air water, oil, air water, air water, oil, airNominal R0at 25 C 2.

21、5 kV 2.5 kV 2.5kV 2.5 kVDissipation Constant 3.5 6 0.9 mW/K 5.0 6 1.2 mW/K 3.56 0.9 mW/K 5.0 6 1.2 mW/K63.2 % Response Time 0.55 6 0.16 s 0.45 6 0.11 s 0.55 6 0.16 s 0.45 6 0.11 sRatio of 95 % to 63.2 % ResponseTimes2.5 6 0.6 2.1 6 0.5 2.5 6 0.6 2.1 6 0.5Design and Construction Fig. 2 Fig. 3 Fig. 2

22、Fig. 3ASTM No. E 879 S A2N E 879 E A2N E 879 G B1N E 879 H B1NDescription Silicone Rubber Coated GlassProbeEpoxy Coated Glass Probe5kV -4-WireNon-interchangeable Sensorin S.S. Housing5kV -2-WireNon-interchangeableSensorin S.S. HousingMajor Application General Purpose ClinicalLaboratory TemperatureMe

23、asurementGeneral Purpose ClinicalLaboratory TemperatureMeasurementGeneral Purpose ClinicalLaboratory TemperatureMeasurementGeneral Purpose ClinicalLaboratory TemperatureMeasurementOperating Temperature Range 10 to 105 C 10 to 105 C 10 to 60 C 10 to 60 CAccuracy Class 2 (60.02 C) 2 (60.02 C) 1 (60.01

24、 C) 1 (60.01 C)Temperatures for Accuracy Class 10 to 105 C 10 to 105 C 10 to 60 C 10 to 60 CAccuracies for other TemperaturesWithin Specified TemperatureRangeCalibration Type Non-interchangeable Non-interchangeable Non-interchangeable Non-interchangeableNominal R-T CharacteristicR = expA0+ A1/T + A2

25、/T2+A3/T3T( C) = a0+a1LnR +a2(LnR)2+a3(LnR)31 273.15A04.3332974 4.3332947 3.7563605 3.7563605A14440.1603 4440.1603 3614.7764 3614.7764A2104525.78 104525.78 88190.906 88190.906A34581329.78 4581329.78 22328247 22328247a00.98667965 3 1030.98667965 3 1030.98019160 3 1030.98019160 3 103a10.24329879 3 103

26、0.24329879 3 1030.28530667 3 1030.28530667 3 103a20.59584872 3 1060.59584872 3 1060.28303328 3 1050.28303328 3 105a30.97166167 3 1070.97166167 3 1070.24131652 3 1060.24131652 3 106Type of Immersion Fluid water, air water, air all fluids compatible with Type304 S.S.all fluids compatible withType 304

27、S.S.R0at 25 C 10kV 10 kV 5 kV 5 kVDissipation Constant 3.5 6 0.9 mW/K 5.0 6 1.2 mW/K 4.86 1.2 mW/K 4.8 6 1.2 mW/K63.2 % Response Time 0.55 6 0.16 s 0.45 6 0.11 s 4.5 6 1.1 s 4.5 6 1.1 sRatio of 95 % to 63.2 % ResponseTimes2.5 6 0.6 2.1 6 0.5 2.6 6 0.3 2.6 6 0.3Design and Construction Fig. 2 Fig. 3 F

28、ig. 4 Fig. 5E 879 01 (2007)2TABLE 1 (continued)ASTM No. E 879 G B1N E 879 H B1N E 879 G A2N E 879 H A2NDescription 10 kV 4-Wire Non-interchangeable Sensor inS.S. Housing10 kV 2-Wire Non-interchangeable Sensor inS.S. Housing10 kV 4-Wire Non-interchangeable Sensor inS.S. Housing10 kV 2-Wire Non-interc

29、hangeable Sensor inS.S. HousingMajor Application General Purpose ClinicalLaboratory TemperatureMeasurementGeneral Purpose ClinicalLaboratory TemperatureMeasurementGeneral Purpose ClinicalLaboratory TemperatureMeasurementGeneral Purpose ClinicalLaboratory TemperatureMeasurementOperating Temperature R

30、ange 10 to 60 C 10 to 60 C 10 to 105 C 10 to 105 CAccuracy Class 1 (60.01 C) 1 (60.01 C) 2 (60.02 C) 2 (60.02 C)Temperatures for AccuracyClass10 to 60 C 10 to 60 C 10 to 105 C 10 to 105 CAccuracies for otherTemperaturesWithin Specified TemperatureRangeCalibration Type Non-interchangeable Non-interch

31、angeable Non-interchangeable Non-interchangeableNominal R-T CharacteristicR = expA0+ A1/T + A2/T2+A3/T3T(C) = a0+a1LnR +a2(LnR)2+a3(LnR)31 273.15A03.5684919 3.5684919 3.7191520 3.7191520A13907.7065 3907.7065 4045.1666 4045.1666A233480.382 33480.382 8181.7100 -8181.7100A318666997 18666997 14472122 14

32、472122a00.86972495 3 1030.86972495 3 1030.89898144 3 1030.89898144 3 103a10.27135335 3 1030.27135335 3 1030.26152805 3 1030.26152805 3 103a20.20689100 3 1050.20689100 3 1050.97537969 3 1060.97537969 3 106a30.20547429 3 1060.20547429 3 1060.16613292 3 1060.16613292 3 106Type of Immersion Fluid all fl

33、uids compatible with Type304 S.S.all fluids compatible with Type304 S.S.all fluids compatible with Type304 S.S.all fluids compatible with Type304 S.S.Nominal R0at 25 C 10 kV 10kV 10 kV 10 kVDissipation Constant 4.8 6 1.2 mW/K 4.8 6 1.2 mW/K 4.86 1.2 mW/K 4.8 6 1.2 mW/K63.2 % Response Time 4.5 6 1.1

34、s 4.5 6 1.1 s 4.56 1.1 s 4.5 6 1.1 sRatio of 95 % to 63.2 %ResponseTimes2.6 6 0.3 2.6 6 0.3 2.6 6 0.3 2.6 6 0.3Design and Construction Fig. 4 Fig. 5 Fig. 4 Fig. 5ASTM No. E 879 V B3I E 879 W B3NDescription Interchangeable SensorEnclosed in 1.17 mm PlasticTubeNon-interchangeable SensorEnclosed in 0.9

35、2 mm PlasticTubeMajor Application Cuvette Thermometry Cuvette ThermometryOperating Temperature Range 10 to 60 C 10 to 60 CAccuracy Class 3 (60.05 C) 3 (60.05 C)Temperatures for AccuracyClass24 to 45 C 10 to 60 CAccuracies for otherTemperaturesWithin Specified TemperatureRange10 to 24 C: 60.1 C45 to

36、60 C: 60.1 CCalibration Type Interchangeable Non-interchangeableNominal R-T CharacteristicR = expA0+ A1/T + A2/T2+A3/T3T(C) = a0+a1LnR +a2(LnR)2+a3(LnR)31 273.15A03.1645305 3.0612396A13763.4399 3613.0051A247816.278 88718.122A318332303 22380305a00.78686094 3 1030.78069589 3 103a10.28128740 3 1030.289

37、67541 3 103a20.25226292 3 1050.38427027 3 105a30.20852922 3 1060.24169639 3 106Type of Immersion Fluid water waterNominal R0at 25 C 11 kV 10 kVDissipation Constant 1.1 6 0.3 mW/K 0.8 6 0.2 mW/K63.2 % Response Time 0.5 6 0.12 s 0.26 6 0.06 sRatio of 95 % to 63.2 %ResponseTimes3.0 6 0.3 3 6 0.3Design

38、and Construction Fig. 6 Fig. 7E 879 01 (2007)34.2 ASTM Specification NumberThe ASTM specificationnumber specifies uniquely the design and construction of thesensor including the type designation if more than one typeappears in the same specification.4.2.1 Type DesignationThe type designation shall b

39、e aletter symbol to indicate the design and construction of thethermistor sensor.4.2.1.1 Type SSilicone rubber-coated glass probe withtinned Dumet extension leads (see Fig. 2).4.2.1.2 Type EEpoxy-coated glass probe with silver-plated copper extension leads (see Fig. 3).4.2.1.3 Type GGeneral purpose

40、four wire sensor in stain-less steel housing (see Fig. 4).4.2.1.4 Type HGeneral purpose two-wire sensor in stain-less steel housing (see Fig. 5).4.2.1.5 Type VInterchangeable sensor enclosed in 1.2-mmvinyl tube (see Fig. 6).4.2.1.6 Type WNon-interchangeable sensor enclosed in0.9-mm vinyl tube (see F

41、ig. 7).4.3 Operating Temperature RangeThe operating tempera-ture range shall be designated by a letter symbol (see Table 3).4.4 Accuracy ClassThe accuracy class shall be designatedby a single-digit number (see Table 2).4.5 Calibration TypeThe type of calibration required foreach unit shall be design

42、ated by a letter symbol. The letter Ishall be used to denote units that are interchangeable withrespect to a single resistance-temperature relationship. Theletter N shall be used to denote non-interchangeable units forwhich resistance-temperature information must be furnishedfor each unit. For Calib

43、ration Type N sensors, serial numberidentification must be provided.5. Requirements5.1 SpecificationsSensors shall comply with the generalrequirements specified herein as well as with the applicabledetailed specifications of Table 1. In the event of conflictbetween this requirement paragraph and the

44、 detailed specifi-cation of Table 1, Figs. 2-7 the latter shall govern.5.2 Zero-Power Resistance versus TemperatureRelationshipThe zero-power resistance versus temperaturerelationship shall be presented in a form such that anytemperature within the specified operating temperature rangecan be obtaine

45、d from that relationship and have an uncertaintyno greater than one-tenth the specified tolerance in Table 2.When tested in accordance with 7.2, the zero-power resistanceversus temperature relationship for interchangeable parts shallcomply to within the tolerance specified in Table 2. Themanufacture

46、r of the sensor shall, for non-interchangeable parts,supply this relationship with each part shipped.5.2.1 AccuracyThe resistance-temperature relationship,provided in Table 1, or with the sensor, or both, shall not differfrom that obtained from measurements made in accordancewith 7.2 by more than th

47、e tolerances specified inTable 2 for theapplicable intervals specified in Table 1.5.3 Thermal Requirements:5.3.1 Dissipation ConstantWhen tested in accordancewith 7.3, the dissipation constant shall be as specified in thedetailed specification.5.3.2 Response TimeWhen tested in accordance with 7.4,th

48、e response time or time constant, or both, shall be as specifiedin the detailed specification.5.4 Environmental Requirements:5.4.1 Operating Temperature RangeThe operating tem-perature range shall be as specified in the type designation code(see 4.1 and 4.3).5.4.2 Storage Temperature RangeSensors sh

49、all be ca-pable of meeting all requirements specified herein as well asthose listed in the applicable detailed specification after storageat any temperature (or combination thereof) in the rangefrom 40 to 60 C for a period of 1 year.5.4.3 Humidity RequirementSensors shall be capable ofbeing operated or stored at relative humidity from 0 to 95

copyright@ 2008-2019 麦多课文库(www.mydoc123.com)网站版权所有
备案/许可证编号:苏ICP备17064731号-1