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1.0 Limits of Error and Calibration Frequency for Various Classes of Gas Testing 不同等级的燃气测试的错误限度和标准频率Instrumentation仪器1.0.1 All limits of error are for individual readings unless specified otherwise. 除非特别说明,所有错误限度为独立读取。1.0.2 All calibration frequencies are annual unless specified otherwise. 除非特别说明,所有的标准频率为每年一次。1.0.3 Calibrations are traceable to NIST through in-house standards or through qualified outside calibration services. 校准是通过家用标准或合格的户外标准服务而根据NIST而定的。1.1 Thermocouples and RTDs 热电偶和研究技术。a. NIST traceable thermocouple (0.3). 根据NIST的热电偶(0.3)b. Working thermocouples to ANSI specifications (4), with a sample certified for each lot or roll of wire. 根据ANSI明细的工作热电偶(4),有一个样品是每一条线都是认证了的。c. RTDs (0.1 max.), calibrated annually or before use. 研究技术(最大0.1),年度标准或之前使用的。1.2 Electrical Measuring Instruments 电路测试仪器a. Primary and secondary calibration standards traceable to NIST (0.5% AC; 0.05 ppm DC; 10 ppm 1 ohms; 4 ppm 10K ohms), calibration standard certified annually. 首要的及次要的校准根据NIST (0.5% AC; 0.05 ppm DC; 10 ppm 1 ohms; 4 ppm 10K ohms)。测量标准每年鉴定一次。b. Working instruments to manufacturers specifications (0.75% to 3%). 工作仪器根据厂家的详细规格(0.75% to 3%)1.3 Gas Flow and Volume Measuring Instruments 气流量和测试仪器a. Calibration standard traceable to NIST (0.15%), certified biannually. 校准根据NIST (0.15%),半年鉴定一次。 b. Working instruments (1.0%). 工作仪器(1.0%).1.4 Weighing Instruments 称重工具a. Working instruments to manufacturers specifications. 根据厂家说明的操作工具。1.5 Pressure Measuring Instruments 压力测量仪器a. Calibration standard traceable to NIST (0.05%), certified every 3 years.校准根据NIST (0.05%),3年鉴定一次。b. Working instruments to manufacturers specifications. 根据厂家说明的操作工具。1.6 Dimensional Instruments 尺寸测量工具a. Calibration standard 1 micro inch, certified every 3 years.校准根据1 micro英寸,3年鉴定一次。 b. Working instruments to manufacturers specifications. 根据厂家说明的操作工具。1.7 Gas Analysis Instruments and/or Calibration Gases 燃气分析工具和/或者校准的例子。a. NIST certified analysis of standard gases; CO-C02. NIST鉴定的标准燃气分析;CO-C02.b. EPA protocol 1 certified analysis of gases; NOx. EPA草稿1鉴定的烟气分析;NOx.* c. CO-CO2 instruments (1.0% of range), calibrated daily. CO-CO2 工具(范围1.0%),每天校准。c. Closed room O2 instruments (1.0% of range), calibrated before use. 密闭室 O2 工具(范围1.0%),使用前校准。* e. NOx instruments (1.0% of range), calibrated before use. NOx工具(范围1.0%),使用前校准* f. Hydrocarbon Analyzer (0.5% of range), calibrated before use. 碳氢化合物分析(范围0.5%),使用前校准1.8 Calorimetry 热量测定a. Standard gases traceable to NIST through the Institute of Gas Technology (IGT). 标准燃气根据NIST中的燃气技术(IGT)b. Continuous flow calorimeter (2 Btu), calibrated monthly. 持续流量热量计(2 Btu),每月校准一次。c. Chromatograph (manufacturers specifications), calibrated before use. 套色板(厂家的说明),使用前校准1.9 Microwave Measuring Instruments (1dB), calibrated before use. 微波测量工具(1dB),使用前校准1.10 Torque Measuring Instruments (1.0% of reading). 转矩测量工具(读取1.0%)1.11 Wind Machine (5 mph in each square foot of a 6 foot by 7 foot grid at an average velocity of 40 mph). 风速工具(在6英尺到7英尺的范围内,每英尺平均风速40mph,5 mph)1.12 Specialized test instrumentation to manufacturers specifications, calibrated annually or before use. 根据厂家的说明使用专门的工具,每年校准一次,或使用前校准。2.0 Specific Calibration Procedures for Various Classes of Temperature Measuring Instrumentation 关于不同等级温度测量仪器的明确校准程序2.1 Optical pyrometers shall be calibrated and certified to NIST by the instrument manufacturer or a qualified laboratory. Thermopiles shall be calibrated and certified to NIST once every four years. 光测高温计将由仪器厂家或有资格的实验室根据NIST而校准或鉴定。温差电堆每4年根据NIST校准或鉴定。* 2.2 Z21 surface temperature probes shall be calibrated after initial construction or rebuild. 表面的温度探针将在初步的结构或重建结构之后校准。2.2 Thermocouple type temperature indicating instruments and data acquisition systems shall be calibrated by comparison to the calibration standard (6.1.2). 热电偶式的温度显示工具和数据获取系统将根据校准的标准(6.1.2)来校准。2.4 A thermocouple fabricated from a purchased roll of ANSI thermocouple wire shall be compared with the NIST traceable thermocouple. A variable temperature calibration block and an electronic ice point shall be used for the comparison. The thermocouple must comply with published ANSI error specifications for the particular type and grade of wire. Working thermocouples shall then be fabricated from these rolls of material. 热电偶根据ANSI而购买制作。热电偶的线将与NIST的标准相对比。变量的温度校准阻碍和电路冰点将用来进行对比。热电偶的型号及线路必须符合ANSI发布的错误明细。运做的热电偶将根据这些材料制作。2.5 Individual thermocouples required for specific applications where a high degree of accuracy is required or specified by code, shall be fabricated from ANSI thermocouple wire, then checked by comparison with the NIST traceable thermocouple. An error limit for the specific special thermocouple shall then be developed and used as a correction during use. 个别的热电偶要求高度精确的应用软件,并有代码说明。这些热电偶要由ANSI的线而制作。然后与NIST标准的热电偶进行对比验证。特定的热电偶的错误极限必须在使用时发展成为修正本。3.0 Specific Calibration Procedures for Electrical Measurement Instruments 电路测量仪器的明确校准程序3.1 The accuracy of the electrical calibration standard shall be assured by comparison with NIST traceable primary voltage and resistance standards owned by the Laboratories. NIST traceable recertification of these primary standards shall be accomplished by returning the standards to a qualified laboratory or by utilizing a traveling comparison standard. 精确的电路校准标准要实验室通过与NIST的主要电压和电阻标准进行对比而确认。NIST关于这些主要的标准的换发新证要通过返回标准到合格的实验室而完成,或者通过利用移动的对比标准来完成。* 3.2 Working electrical instruments shall be calibrated by comparison to an electrical calibration standard. 运做的电路仪器要通过与电路校准标准进行对比后校准。4.0 Specific Calibration Procedures for Instruments Measuring Gas Flow and Gas Volume 气流量测试仪器的明确校准程序4.1 Calibration shall be performed using a bell prover. The water method outlined in the American Meter Company Displacement Gas Meter Handbook, No. E-4, published in 1965, shall be used for calibration purposes. Dry gas meters exceeding 400 Btu/hr shall be sent to the local gas utility annually for calibration. 校准的过程要使用校准试验装置来证明。在1965年颁布的美国计量公司置换气体计量手册中有列出计量的方法,要用这个方法来校准。干气体的计量超过400 Btu/hr要每年发送一次到当地气站进行校准。4.2 The 5 cubic foot bell-type prover shall be recertified every two years using a portable NIST traceable standard cubic foot and a NIST recommended strapping procedure. 5立方英尺的校准试验装置要每两年根据NIST标准的英尺和NIST推荐的有效程序重新鉴定一次4.3 Other flow measurement means used by the Laboratories are rotameter/flowmeters (variable orifice meters) and laminar flow meters. Calibration of these devices shall be by comparison to calibrated wet or dry positive displacement meters or by a qualified calibration laboratory. 实验室使用的其他流量测量方法是转子流量计(变量计量)和层状的流量计量。这些设备的校准要通过与干湿的转移计量的对比,或者通过合格的实验室来实现。5.0 Specific Calibration Procedures for Weighing Instruments 重量测试仪器的明确校准程序* The certification lab uses a number of platform scales, bench scales and balances which shall be serviced and calibrated by a qualified laboratory. Their working weight standards shall be traceable to NIST. The certificate numbers of their standards shall be on file in the calibration laboratory. 鉴定的实验室使用各种平台刻度,椅子刻度和要被合格的实验室使用或校准过的刻度设备。他们的工作重量要根据NIST。鉴定的标准数量要在校准实验室的文件中有体现。6.0 Specific Calibration Procedures for Pressure Measuring Instruments 压力测试仪器的明确校准程序6.1 Pressure shall be measured using U tube water manometers, inclined manometers, Bourdon tube pressure gauges of various ranges, pressure transducers or electronic manometers. 压力要使用U型水压力管进行测量,倾向压力计,不同范围的低音管压力表,压力传感器或电子压力计。* 6.2 Bourdon tube pressure gauges, pressure transducers and electronic manometers shall be calibrated using a dead weight tester, which is certified traceable to NIST by a qualified laboratory. 低音管压力表,压力传感器或电子压力计要使用由合格实验室鉴定了的符合NIST标准的不流动的检测器校准。* 6.3 Calibration of vertical column and inclined manometers shall be maintained by comparison against an NIST traceable pressure calibrator. 垂直圆柱状和倾斜状压力计的校准要通过与NIST的压力校准器对比而实现。7.0 Specific Calibration Procedures for Dimensional Instruments 尺寸测试仪器的明确校准程序Working dimensional instrument and gauges shall be calibrated by comparison to a set of 0.5 Grade, rectangular master gauge blocks. 运作的尺寸测量工具和测量表要通过与一套0.5等级的矩形精确检测仪器对比来校准。8.0 Specific Calibration Procedures for Gas Analysis Instruments 燃气分析仪器的明确校准程序8.1 Standard calibration gases shall be purchased from both NIST and from commercial specialty gas suppliers. 标准校准燃气要从NIST或专业的燃气供应商处购买。* 8.2 Commercially purchased gases shall be used for working calibrations after they have been checked for stated accuracies against the NIST gases by performing a comparison test using a CO/CO2 analyzer. The comparison shall be performed annually. 商业购买的燃气,在他们被检查是NIST燃气规定的精确度后,并且使用CO/CO2 分析仪对比操作后,才使用在运作校准上, 9.0 Calorimetry 热量测定9.1 The heating value of natural gas and 1400 LP-Air gas entering the certification lab shall be constantly monitored and recorded by a gas calorimeter. This unit shall be calibrated monthly against a natural gas sample obtained from the Institute of Gas Technology (IGT). The Btu heating value of this sample shall be certified by comparison to NIST methane samples maintained by IGT. 实验室中的天然气和1400液化气热值要用气体热量计长期监控和记录。这个东西要每个月根据TGT提供的天然气样品进行校准,样品BUT热值要与在IGT获取的NIST甲烷样品对比之后校准。10.0 Microwave Measuring Instruments 微波测量仪器10.1 These instruments shall be calibrated by the manufacturer against an NIST standard. 这些仪器要通过厂家,根据NIST的标准来校准。11.0 Torque Measuring Instrument 转矩测量仪器11.1 A variety of torque wrenches and gauges are used by the Laboratories. These shall be certified traceable to NIST by the manufacturer or a qualified independent laboratory. 实验室要使用不同的转矩扳手和测量表。这些要通过厂家或几个的独立实验室,根据NIST的标准来校准。12.0 Wind Machine 风速机12.1 Calibration of this equipment to verify the wind velocity vs. fan speed shall be accomplished as described in the Laboratories Method for Calibrating the Wind Machine. Calibration of the fan shaft speed tachometer or engine tachometer shall be accomplished using a frequency calibrated stroboscope or equivalent. 这个设备的校准是用来验证风速和风机速度要跟风速机校准的实验方法一致。风机轴速度和发动机的转速计的校准要和使用频闪观测仪或类似仪器的一致。13.0 Specialized Test Equipment 专门的测试设备Specialized test equipment shall be serviced and calibrated by the certification lab or by an instrument repair and calibration laboratory. A file showing NIST traceability for this equipment shall be maintained. 专门的测试设备要是在鉴定实验室使用的或由该实验室纠正和校准的仪器。要提供显示这个设备是根据NIST标准的文件14.0 NIST Traceability Records NIST的可追溯记录 Records and certificates of calibration for calibrat

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