SS-EN 14662-2:2005
環(huán)境空氣質(zhì)量 測(cè)量苯濃度的標(biāo)準(zhǔn)方法 第二部分：泵吸采樣后溶劑解吸和氣相色譜法

Ambient air quality - Standard method for measurement of benzene concentrations - Part 2: Pumped sampling followed by solvent desorption and gas chromatography

標(biāo)準(zhǔn)號(hào)

SS-EN 14662-2:2005

發(fā)布

2005年

發(fā)布單位

SIS

當(dāng)前最新

SS-EN 14662-2:2005

 

 

適用范圍

This part of EN 14662 is in accordance with the generic methodology for the determination of benzene in ambient air [1] for the purpose of comparison of measurement results with limit values with a one-year reference period. This part of EN 14662 gives general guidance for the sampling and analysis of benzene in air by pumped sampling, solvent desorption and capillary gas chromatography. This part of EN 14662 is valid for the measurement of benzene in a concentration range of approximately 0,5 μg/m3 to 50 μg/m3 in an air sample of 1 m3 volume, typically collected over a period of 24 hours. The upper limit of the useful range is set by the sorptive capacity of the sorbent and by the linear dynamic range of the gas chromatograph column and detector or by the sample splitting capability of the analytical instrumentation used. The lower limit of the useful range depends on the noise level of the detector and on blank levels of benzene and/or interfering artefacts on the sorbent and in the desorption solvent. The method described here is based on sampling on sample tubes typically containing 100 mg of activated charcoal and desorption using carbon disulphide. Alternative sorbents to activated charcoal may be used provided that the equivalence in performance characteristics of the procedure is demonstrated. Alternative desorption solvents to carbon disulphide may be used provided that the equivalence in performance characteristics of the procedure is demonstrated.

SS-EN 14662-2:2005相似標(biāo)準(zhǔn)

SS-EN 14662-2:2005 中可能用到的儀器設(shè)備

苯 測(cè)試方法

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AASHTO - American Association of State Highway and Transportation Officials

API - American Petroleum Institute

AR-IRAM

AT-ON

澳大利亞/新西蘭標(biāo)準(zhǔn)

澳大利亞標(biāo)準(zhǔn)協(xié)會(huì)

BE-NBN

BELST

BR-ABNT

加拿大通用標(biāo)準(zhǔn)委員會(huì)

加拿大標(biāo)準(zhǔn)協(xié)會(huì)

CEN - European Committee for Standardization