N55 其他物质成份分析仪器 标准查询与下载

BS EN 61779-2:2000 可燃性气体的检测和测量用电气装置.指示空气中甲烷含量达到体积分率为5%时I组装置的性能要求

1 This part of IEC 61779 specifies requirements for group I (as defined in part 1) portable, transportable and fixed apparatus for the detection and measurement of methane concentrations in mine air. The apparatus, or parts thereof, are intended for use in mines susceptible to firedamp. The requirements and test methods applicable to the apparatus covered by this standard are specified in part 1. 2 This standard is restricted to apparatus intended for the detection and measurement of volume ratios of methane in air from a volume fraction of 0 % up to, but not exceeding, a volume fraction of 5 %.

Electrical apparatus for the detection and measurement of flammable gases - Performance requirements for group I apparatus indicating a volume fraction up to 5% methane in the air

BS EN 61779-1:2000 可燃性气体的检测和测量用电气装置.一般要求和试验方法

1 This part of IEC 61779 specifies general requirements for construction and testing and describes the test methods that apply to portable, transportable and fixed apparatus for the detection and measurement of flammable gas or vapour concentrations with air. The apparatus, or parts thereof, are intended for use in potentially explosive atmospheres (see 2.1.8) and in mines susceptible to firedamp. This standard is supplemented by the following standards, concerning the specific requirements for the performance of the various types of apparatus: IEC 61779-2: Performance requirements for group I apparatus indicating up to a volume fraction of 5 % methane in air IEC 61779-3: Performance requirements for group I apparatus indicating up to a volume fraction of 100 % methane in air IEC 61779-4: Performance requirements for group II apparatus indicating up to a volume fraction of 100 % lower explosive limit IEC 61779-5: Performance requirements for group II apparatus indicating up to a volume fraction of 100 % gas Note deleted NOTE 1 - Group I and group II apparatus indicating up to a volume fraction of 100 % methane and group II apparatus indicating up to a volume fraction of 100 % gas are suitable for use only with the specific gases for which they have been calibrated. NOTE 2 - For the purpose of this standard, the terms "lower flammable limit (LFL)" and "lower explosive limit (LEL)" are deemed to be synonymous, and likewise the terms "upper flammable limit (UFL)" and "upper explosive limit (UEL)" are deemed to be synonymous. For ease of reference, the two abbreviations LFL and UFL may be used hereinafter to denote these two sets of terms. It should be recognized that particular authorities having jurisdiction may have overriding requirements that dictate the use of one of these sets of terms and not the other. 2 This standard is applicable when an apparatus manufacturer makes any claims regarding any special features of construction or superior performance that exceed these minimum requirements. All such claims shall be verified and the test procedures shall be extended or supplemented, where necessary, to verify the claimed performance. The additional tests shall be agreed between the manufacturer and test laboratory. 3 This standard is applicable to flammable gas detection apparatus intended to provide an indication, alarm or other output function, the purpose of which is to give a warning of a potential explosion hazard and, in some cases, to initiate automatic or manual protective action(s). 4 This standard is applicable to apparatus, including the integral sampling systems of aspirated apparatus, intended to be used for commercial and industrial safety applications. 5 This 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.

Electrical apparatus for the detection and measurement of flammable gases - General requirements and test methods

ASTM F658-00 用基于消光的光学系统进行液载粒子计数器校准的标准实施规程

1.1 This practice covers procedures for calibrating and determining performance of an optical liquid-borne particle counter (LPC) which uses an optical system based upon light extinction measurement. This practice is directed towards determination of accuracy and resolution of the LPC for characterizing the size and number of particles, which have been passed into the sample inlet of the LPC. Consideration of inlet sampling efficiency is not part of this practice.1.2 The procedures covered in this practice include those to measure sample volume and flow rate, zero count level, particle sizing and counting accuracy, particle sizing resolution, particle counting efficiency, and particle concentration limit.1.3 The particle size parameter reported in this practice is the equivalent optical diameter based on projected area of calibration particles with known physical properties dispersed in liquid. The manufacturer normally specifies the minimum diameter that can be reported by an LPC; the dynamic range of the LPC being used determines the maximum diameter that can be reported for a single sample. Typical minimum reported diameters are approximately 2 180m, and a typical dynamic range specification will be approximately from 50 to 1.1.4 The counting rate capability of the LPC is limited by temporal coincidence of particles in the sensing volume of the LPC and by the saturation level or maximum counting rate capability of the electronic sizing and counting circuitry. Coincidence is defined as the simultaneous presence of more than one particle within the LPC optically defined sensing zone at any time. The coincidence limit is a statistical function of particle concentration in the sample and the sensing zone volume when particle size is insignificant in comparison to the sensing volume dimensions. This limitation may be modified by the presence of particles with dimension so large as to be a significant fraction of the sensing zone dimension. The saturation level rate of the electronic counting circuitry shall be specified by the manufacturer and is normally greater than the LPC recommended maximum counting rate for the particle concentrations used for any portion of this practice.1.5 Calibration in accordance with all parts of this practice may not be required for routine field calibration of an LPC unless significant changes have occurred in operation of the LPC or major component repairs or replacements have been made. The LPC shall then be taken to a suitable metrology facility for complete calibration. Normal routine field calibration may determine sample flow rate, zero count level, and particle sizing accuracy. The specific LPC functions to be calibrated shall be determined on the basis of agreement between the purchaser and the user. The maximum time interval between calibrations shall be determined by agreement between the purchaser and the user, but shall not exceed twelve months, unless LPC stability for longer periods is verified by measurements in accordance with this practice.1.6 This standard may involve hazardous materials, operation, and equipment. 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 Calibration of a Liquid-Borne Particle Counter Using an Optical System Based Upon Light Extinction

ASTM D6187-97(2010) 带有氮激光感应荧光的石油污染位点的锥形透度计技术特性的标准实施规程

Direct push LIF is used for site investigations where the delineation of petroleum hydrocarbons and other fluorophores is necessary. Generic terms for these investigations are site assessments and hazardous waste site investigations. Continuous LIF is used to provide information on the relative amounts of contamination and to provide a lithological detail of the subsurface strata. These investigations are frequently required in the characterization of hazardous waste sites. This technology provides preliminary results within minutes following the completion of each test. This allows the number, locations, and depths of subsequent tests to be adjusted in the field. Field adjustment may increase the efficiency of the investigation program. The rapid fluorescence data gathering provided by direct push LIF provides information necessary to assess the presence of contamination in soils and associated pore fluids in the field. This method allows for immediate determination of relative amounts of contamination. This allows the number, locations, and depths of subsequent activities to be adjusted in the field. Field adjustment may increase the efficiency of the investigation program. With appropriate sensors, the direct-push investigation program can provide information on soil stratigraphy and the distribution of petroleum and other fluorophores in the subsurface. This method results in minimum site disturbance and generates no cuttings that might require disposal (1). This practice is confirmed using soil samples collected at given depths to confirm the fluorescence readings using a field deployed EPA Method 418.1 (2), EPA method 8015-modified, and a modified EPA 8270 Method (3), or equivalent methodologies, as compared to the fluorescence reading from the same depth from the sensor to verify that the fluorescence correlates with the contamination. The collected samples are also tested on the probe window in the truck to ensure the sample collected is representative of the region tested in situ. This practice may not be the correct method for preliminary or supplemental investigations in all cases. Chemical and physical properties of site specific soil matrices may have an effect on site specific detection limits. Subsurface conditions affect the performance of the equipment and methods associated with the direct push method. Direct push methods are not effective in pushing in solid bedrock and are marginally effective in pushing in weathered formations. Dense gravelly tills where boulders and cobbles are present, stiff and hard clays, and cemented soil zones may cause refusal and potential probe breakage. Certain cohesive soils, depending on their moisture content, can create friction on the cone penetrometer probes which can eventually equal or exceed the static reaction force and/or the impact energy being applied. As with all direct push methods, precautions must be taken to prevent cross contamination of aquifers through migration of contaminants up or down the cone penetrometer hole. The practicing of direct push techniques may be controlled by various government regulations governing subsurface explorations. Certification or licensing regulations, or both, may in some cases be considered in establishing performance criteria. For additional information see (4-15)1.1 This practice covers the method for delineating the subsurface presence of petroleum hydrocarbons and other hydrocarbons using a fiber optic based nitrogen laser-induced fluorescence sensor system. 1.2 The petroleum hydrocarbon sensing scheme utilizes a fluorescence technique in which a nitrogen laser emits pulsed ultraviolet light. The laser, mounted on the cone penetrometer platform, is linked via fiber optic cables to a window moun......

Standard Practice for Cone Penetrometer Technology Characterization of Petroleum Contaminated Sites with Nitrogen Laser-Induced Fluorescence

NF C23-564:1995 检测和测量氧气性能要求和试验方法用电气装置

Electrical apparatus for the detection and measurement of oxygen performance requirements and test methods.

JIS K 3601:1995 乳酸盐分析仪

この規格は，血液，発酵液，食品などの試料中に存在する乳酸の光学異性体のーつであるL-乳酸濃度を測定するための計測器(以下，計測器という。)のうち，固定化ラクテートオキシダーゼと酸素電極若しくは過酸化水素電極との組合せによる酵素電極法，又は固定化シトクロムbとへキシアノ鉄(Ⅲ)イオン存在下でのシトクロムb反応の生成物であるへキサシアノ鉄(Ⅱ)イオンの電解分折用電極[以下，へキサシアノ鉄(Ⅱ)イオン分析用電極という。]との組合せによる酵素電極法に基づくものについて規定する。

Lactate analyzers

DIN EN 61207-2:1995 气体分析器性能表示.第2部分:气体中的氧(利用高温电化学传感器)

This document applies to all aspects of analysers using high-temperature electrochemical sensors for the measurement of oxygen in gas.

Expression of performance of gas analyzers - Part 2: Oxygen in gas (utilizing high-temperature electrochemical sensors) (IEC 61207-2:1994); German version EN 61207-2:1994

DIN EN 61207-6:1995 气体分析仪性能表示.第6部分:光度分析仪

This document in intended to specify the terminology and definitions related to the functional performance of gas analysers, utilising a photometric analysers, for the continuous measurement of sulphur dioxide concentration in a source gas.

Expression of performance of gas analyzers - Part 6: Photometric analyzers (IEC 61207-6:1994); German version EN 61207-6:1994

BS EN 61207-6:1994 气体分析仪性能.第6部分:光度分析仪

Applies to all aspects of analyzers for the measurement of concentration of one or more components in a mixture of gases or vapours. To be read in conjunction with BS EN 61207-1:1994

Expression of performance of gas analyzers - Photometric analyzers

BS EN 61207-2:1994 气体分析器性能说明.第2部分:气体中的氧(利用高温电化检测器)

Applies to all aspects of analyzers using high-temperature electrochemical sensors for the measurement of oxygen in gas.

Expression of performance of gas analyzers - Oxygen in gas (utilizing high-temperature electrochemical sensors)

JIS B 7983:1994 烟道气体中氧含量的连续分析仪

Continuous analyzers for oxygen in flue gas

JIS B 7995:1994 原油及石油产品中硫含量的自动分析仪

この規格は，原油及び石油製品中の硫黄分を放射線を用いて測定する自動計測器(以下，計測器という。)について規定する。

Automatic analysers for sulphur in crude oil and petroleum products

JB/T 6854-1993 过程分析仪器试样处理系统性能表示

本标准规定了过程分析仪器试样处理系统的一般性能和试验方法。 本标准适用于与过程分析仪器联用的试样处理系统，包括用于维护试样处理系统性能和过程分析仪器性能的其它设施。 本标准不适用于固体试样处理系统，以及过程分析仪器内部具有试样处理功能的组件。 本标准不涉及电气、爆炸、毒性等安全方面的叙述。有关电气、爆炸、毒性等要求应符合有关标准规定。

Performance representation of sample handling systems for process analytical instruments

QB/T 1676-1992 手动脂肪测定仪

本标准规定了手动脂肪测定仪的产品分类、技术要求、试验方法、检验规则以及标志、包装、运输、贮存等。 本标准适用于测定新鲜乳和消毒乳的脂肪百分含量的手动脂肪测定仪(以下简称“测定仪”)。

Manual Fat Analyzer

prEN 50104-1992 氧气的检测和测量用电气仪表.性能要求和试验方法

Electrical apparatus for the detection and measurement of oxygen; performance requirements and test methods

ASTM E147-61(2001) 用基耶达法进行氮气微量测定用仪器

1.1 This specification covers digestion and distillation apparatus used for the microdetermination of nitrogen by the Kjeldahl method, and modifications thereof at atmospheric pressure. Note 18212;This specification is based on those originally developed by the Committee on Microchemical Apparatus, Division of Analytical Chemistry, American Chemical Society.

Standard Specification for Apparatus For Microdetermination Of Nitrogen By Kjeldahl Method

ASTM E147-61(1996) 用基耶达法进行氮气微量测定用仪器

1.1 This specification covers digestion and distillation apparatus used for the microdetermination of nitrogen by the Kjeldahl method, and modifications thereof at atmospheric pressure. Note 18212;This specification is based on those originally developed by the Committee on Microchemical Apparatus, Division of Analytical Chemistry, American Chemical Society.

Standard Specification for Apparatus For Microdetermination Of Nitrogen By Kjeldahl Method

ASTM E147-61(2006) 用基耶达法进行氮气微量测定用仪器

1.1 This specification covers digestion and distillation apparatus used for the microdetermination of nitrogen by the Kjeldahl method, and modifications thereof at atmospheric pressure. Note 18212;This specification is based on those originally developed by the Committee on Microchemical Apparatus, Division of Analytical Chemistry, American Chemical Society.

Standard Specification for Apparatus For Microdetermination Of Nitrogen By Kjeldahl Method