N56 环境监测仪器及其成套装置 标准查询与下载



共找到 272 条与 环境监测仪器及其成套装置 相关的标准,共 19

이 규격은 LNG 및 LPG의 누출 감지에 사용되는 가스 센서(접촉 연소식, 반도체식)에

Gas sensors for detecting flammable gas

ICS
31.080.01
CCS
N56
发布
2002-10-23
实施
2002-10-23

この規格は,硫化水素の発生のおそれがあるビット,マンホール,浄化槽,暗きよ(渠),地下室などの地下構造物及びタンク,管,溝,槽,熱交換器などの地上構造物並びに船倉の内部などにおいて,硫化水素濃度の測定,監視及び警報用として使用すろ硫化水素計について規定する。

Hydrogen sulfide indicator/alarm

ICS
13.040.30;19.040;71.040.40
CCS
N56
发布
2002-04-25
实施

この規格は,固定発生源の排ガス中の一酸化窒素,二酸化窒素又は窒素酸化物濃度を連続的に測定するための自動計測システム(以下,計測システムという。)及び自動計測器(以下,計測器という。)のうち,試料ガス吸引採取方式(Extractive method)のものについて規定する。ただし一酸化二窒素(NO)の 測定には適用しない。

Automated measuring systems and analyzers for nitrogen oxides in flue gas

ICS
13.040.40;71.040.40
CCS
N56
发布
2002-04-20
实施

To be read in conjunction with BS EN 50291:2001

Electrical apparatus for the detection of carbon monoxide in domestic premises. Guide on the selection, installation, use and maintenance

ICS
13.040.40;13.120;13.320;97.030
CCS
N56
发布
2002-02-04
实施
2002-02-04

この規格は,大気中の浮遊粒子状物質の濃度を連続的に測定するための自動計測器(以下,計測器という。)について規定する。

Automatic monitors for suspended particulate matter in ambient air

ICS
13.040.20;19.120
CCS
N56
发布
2001-01-20
实施

本标准规定了普通型采样管法、皮托管平行测速采样法、动压平衡型等速采样管法和静压平衡型等速采样管法烟尘采样器和测定排气流速、含湿量、温度和压力等参数所用仪器、仪表的技术要求,以及检测项目和试验方法。 本标准适用于采样流量在60L/min以内,撑气流速范围5~30m/s,用过滤称重法测定固定源排气中颗粒物含量的烟尘采样器。

Technical conditions of sampler for stack dust

ICS
13.020.01
CCS
N56
发布
1999-08-18
实施
2000-01-01

本标准规定了采样器的技术要求、检测项目、试验方法。 本标准适用于测定固定源排气中烟气有害成分SO2、NO^x等含量的采样器。

Technical conditions of sampler for stack gas

ICS
13
CCS
N56
发布
1999-08-18
实施
2000-01-01

Indicators of fluorine ion analyzer

ICS
13.040.01
CCS
N56
发布
1999-06-04
实施
1999-06-04

1 This part of IEC 61779 gives guidance on the selection, installation, use and maintenance of electrically operated group II apparatus for the detection and measurement of flammable gases complying with the requirements of IEC 61779-1 to IEC 61779-5. It is a compilation of practical knowledge to assist the user, and applies to apparatus, instruments and systems that indicate the presence of a flammable or potentially explosive mixture of gas or vapour with air by using an electrical signal from a gas sensor to produce a meter reading, to activate a visual or audible pre-set alarm or other device, or any combination of these. NOTE - When in classified areas, the apparatus should be so installed and used that it is not capable of itself igniting a combustible gas-air mixture. It should therefore comply with the requirements of IEC 60079-10. For the purpose of this standard, flammable gases shall include flammable vapours. 2 This standard applies only to group II apparatus intended for use in industrial and commercial safety applications, involving areas classified in accordance with IEC 60079-10. For the purpose of this standard, apparatus includes a) fixed apparatus; b) transportable apparatus; and c) portable apparatus. 3 This standard is not intended to cover the following: a) apparatus intended only for the detection of non-flammable toxic gases; b) apparatus of laboratory or scientific type intended only for analysis or measurement purposes; c) apparatus intended for underground mining applications; d) apparatus intended for applications in explosives processing and manufacture; e) apparatus intended only for process control applications; f) apparatus intended for the detection of a potentially flammable atmosphere esulting from dust or mist in air.

Electrical apparatus for the detection and measurement of flammable gases - Part 6: Guide for the selection, installation, use and maintenance of apparatus for the detection and measurement of flammable gases

ICS
13.230;13.320;17.060;29.260.20
CCS
N56
发布
1999-06
实施
2007-09-03

Continuous analyzer for carbon monoxide in ambient air

ICS
13.040.20;71.060.20
CCS
N56
发布
1998-04-20
实施

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. NOTE - The use of group I apparatus may not be permitted without the additional and prior approval of the relevant authority in mines under its jurisdiction, see note 1 of 1.1.1 of 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 - Part 2: Performance requirements for group I apparatus indicating a volume fraction up to 5 % methane in air

ICS
13.320
CCS
N56
发布
1998-04
实施
2007-08-14

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. NOTE - The use of group I apparatus may not be permitted without the additional and prior approval of the relevant authority in mines under its jurisdiction, see note 1 of 1.1.1 of 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 a volume fraction of 100 %. NOTE - Apparatus covered by this standard will normally be intended to operate in volume ratios greater than a volume fraction of 5 %.

Electrical apparatus for the detection and measurement of flammable gases - Part 3: Performance requirements for group I apparatus indicating a volume fraction up to 100 % methane in air

ICS
13.320
CCS
N56
发布
1998-04
实施
2007-08-14

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 1 - IEC 61779-1, in association with the standards referred to above, is intended to provide for the supply of apparatus giving a level of safety and performance suitable for general purpose applications. However, for specific applications, a prospective purchaser (or an appropriate authority) may additionally require the apparatus to be submitted to particular tests or approval. For example, group I apparatus (i.e. apparatus to be used in mines susceptible to firedamp) may not be permitted to be used without the additional, prior approval of the relevant authority in mines under its jurisdiction. Such particular tests/approval are to be regarded as additional to and separate from the provisions of the standards referred to above and do not preclude certification to or compliance with these standards. NOTE 2 - 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 3 - 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 - Part 1: General requirements and test methods

ICS
13.320
CCS
N56
发布
1998-04
实施
2007-08-14

1 This part of IEC 61779 specifies requirements for group II (as defined in part 1) portable, transportable and fixed apparatus for the detection and measurement of combustible gas or vapour concentrations with air. The apparatus, or parts thereof, may be installed or used in potentially explosive atmospheres, other than mines susceptible to firedamp (i.e. group I). 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 combustible gas or vapour concentrations with air up to 100 % lower explosive limit (LEL).

Electrical apparatus for the detection and measurement of flammable gases - Part 4: Performance requirements for group II apparatus indicating a volume fraction up to 100 % lower explosive limit

ICS
13.320
CCS
N56
发布
1998-04
实施
2007-08-14

1 This part of IEC 61779 specifies requirements for group II (as defined in part 1) portable, transportable and fixed apparatus for the detection and measurement of combustible gas or vapour concentrations with air. The apparatus, or parts thereof, may be installed or used in potentially explosive atmospheres, other than mines susceptible to firedamp (i.e. group I). 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 combustible gas or vapour in air in volume fractions from 0 % to 100 %. NOTE 1 - Apparatus covered by this standard will normally be intended to operate in volume ratios greater than 100 % LEL. NOTE 2 - Although apparatus of the types covered by this standard may be suitable for detecting a wide range of combustible gases, particular gases (e.g. methane or propane) are specified in part 1 as the components of the test gases for the purpose of practical convenience. The performance requirements specified in this standard should therefore be considered with caution when the apparatus is used to detect other combustible gases, as some parameters - such as time of response - will be modified.

Electrical apparatus for the detection and measurement of flammable gases - Part 5: Performance requirements for group II apparatus indicating a volume fraction up to 100 % gas

ICS
13.320
CCS
N56
发布
1998-04
实施
2007-08-14

1.1 This practice covers procedures for determining both the counting and sizing accuracy for an automatic airborne particle counter (APC). The practice is directed towards determination of the sizing accuracy and resolution of the APC when presented with a challenge aerosol of near monosized spherical particles. The practice is also directed towards determination of the counting accuracy of an automatic particle counter for spherical particles that have entered the sampling inlet of that particle counter. Consideration of sampling efficiency effects is not part of this test procedure. 1.2 The size distribution parameter that is reported is the equivalent optical diameter based on projected area of a spherical particle of known refractive index. The minimum diameter that can be effectively measured by an automatic airborne particle counter is specified by the manufacturer, and the maximum diameter that can be measured on a single sample is determined by the dynamic range of the instrument being used. Typical minimum diameters are in the range from 0.2 to 0.5 [mu]m and typical dynamic range specification is 40 to 1. 1.3 The counting rate capability of the APC is limited by physical coincidence for the specific instrument, and by the maximum counting rate capability of the electronic counting circuitry. Coincidence is defined as the probability that more than one particle will be present in the sensing zone at any time. The coincidence error is a statistical function of the concentration and the sensing zone volume. The saturation level, or maximum counting rate of the electronic counting circuitry, will be specified by the manufacturer and should always be higher than the APC counting rate at the specified maximum concentration. 1.4 This standard may involve hazardous materials, operations, and equipment. This standard does not purport to address all of the safety problems 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 an Airborne Particle Counter Using Monodisperse Spherical Particles

ICS
13.040.01 (Air quality in general)
CCS
N56
发布
1998
实施

The reactivity and instability of O3 preclude the storage of O3 concentration standards for any practical length of time, and precludes direct certification of O3 concentrations as Standard Reference Materials (SRMs). Moreover, there is no available SRM that can be readily and directly adapted to the generation of O3 standards analogous to permeation devices and standard gas cylinders for sulfur dioxide and nitrogen oxides. Dynamic generation of O3 concentrations is relatively easy with a source of ultraviolet (UV) radiation. However, accurately certifying an O3 concentration as a primary standard requires assay of the concentration by a comprehensively specified analytical procedure, which must be performed every time a standard is needed (9). This practice is not designed for the routine calibration of O3 monitors at remote locations (see Practices D 5011). 1.1 This practice covers a means for calibrating ambient, workplace, or indoor ozone monitors, and for certifying transfer standards to be used for that purpose.1.2 This practice describes means by which dynamic streams of ozone in air can be designated as primary ozone standards.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. See Section for specific precautionary statements.

Standard Practice for Calibration of Ozone Monitors and Certification of Ozone Transfer Standards Using Ultraviolet Photometry

ICS
13.040.01 (Air quality in general)
CCS
N56
发布
1998
实施

1.1 This practice covers a means for calibrating ambient, workplace or indoor ozone monitors, and for certifying transfer standards to be used for that purpose. 1.2 This practice describes means by which dynamic streams of ozone in air can be designated as primary ozone standards. 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. See Section 8 for specific precautionary statements.

Standard Practice for Calibration of Ozone Monitors and Certification of Ozone Transfer Standards Using Ultraviolet Photometry

ICS
13.040.01 (Air quality in general)
CCS
N56
发布
1998
实施

The reactivity and instability of O3 preclude the storage of O3 concentration standards for any practical length of time, and precludes direct certification of O3 concentrations as Standard Reference Materials (SRMs). Moreover, there is no available SRM that can be readily and directly adapted to the generation of O3 standards analogous to permeation devices and standard gas cylinders for sulfur dioxide and nitrogen oxides. Dynamic generation of O3 concentrations is relatively easy with a source of ultraviolet (UV) radiation. However, accurately certifying an O3 concentration as a primary standard requires assay of the concentration by a comprehensively specified analytical procedure, which must be performed every time a standard is needed (9). This practice is not designed for the routine calibration of O3 monitors at remote locations (see Practices D5011). 1.1 This practice covers a means for calibrating ambient, workplace, or indoor ozone monitors, and for certifying transfer standards to be used for that purpose. 1.2 This practice describes means by which dynamic streams of ozone in air can be designated as primary ozone standards. 1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this 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 determine the applicability of regulatory limitations prior to use. See Section 8 for specific precautionary statements.

Standard Practice for Calibration of Ozone Monitors and Certification of Ozone Transfer Standards Using Ultraviolet Photometry

ICS
13.040.01
CCS
N56
发布
1998
实施

5.1 The reactivity and instability of O3 preclude the storage of O3 concentration standards for any practical length of time, and precludes direct certification of O3 concentrations as Standard Reference Materials (SRMs). Moreover, there is no available SRM that can be readily and directly adapted to the generation of O3 standards analogous to permeation devices and standard gas cylinders for sulfur dioxide and nitrogen oxides. Dynamic generation of O3 concentrations is relatively easy with a source of ultraviolet (UV) radiation. However, accurately certifying an O3 concentration as a primary standard requires assay of the concentration by a comprehensively specified analytical procedure, which must be performed every time a standard is needed (9). 5.2 This practice is not designed for the routine calibration of O3 monitors at remote locations (see Practices D5011). 1.1 This practice covers a means for calibrating ambient, workplace, or indoor ozone monitors, and for certifying transfer standards to be used for that purpose. 1.2 This practice describes means by which dynamic streams of ozone in air can be designated as primary ozone standards. 1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. See Section 8 for specific precautionary statements. 1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

Standard Practice for Calibration of Ozone Monitors and Certification of Ozone Transfer Standards Using Ultraviolet Photometry

ICS
13.040.01
CCS
N56
发布
1998
实施



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