Detailní informace o produktu

Typ produktu Česká technická norma (ČSN)
Oznaèení zákl. dokumentu ČSN P CEN/TS 17286
Zmìna/oprava/svazek
Tøídicí znak 834763
Katalogové èíslo 507671
Název dokumentu Stacionární zdroje emisí - Monitoring rtuti s využitím sorbčních záchytných systémů
Anglický název Stationary source emissions - Mercury monitoring using sorbent traps
Datum vydání 01.09.2019
Datum ukonèení platnosti
Datum úèinnosti 01.10.2019
Vìstník vydání (mìs/rok) 9/19
Vìstník zrušení
Zpùsob vydání ve věstníku
Zpùsob pøevzetí originálu vyhlášením
Bude pøeložena Ne
Použité jazyky
ICS kódy 13.040.40 - Stacionární zdroje emisí
Subsektor
Deskriptory
Klíèová slova
Harmonizace/Urèení Informace o harmonizovaných a urèených normách jsou zveøejnìny v Databázi harmonizovaných norem
Zapracované dokumenty
OznaèeníRok vydání
CEN/TS 172862019
Zmìny
Opravy
Nahrazuje dokumenty
Byla nahrazena dokumenty
Anotace

ČSN P CEN/TS 17286 The purpose of this document is to establish performance benchmarks for, and to evaluate the acceptability of, sorbent trap monitoring systems used to monitor total vapour- phase mercury (Hg) emissions in stationary source flue gas streams. These monitoring systems involve continuous repetitive in-flue sampling using paired sorbent traps with subsequent analysis of the time-integrated samples. This document is suitable for both short-term (periodic) measurements and long-term (continuous) monitoring using sorbent traps. NOTE - When this Technical Specification has been validated, the sorbent trap method will be an Alternative Method subject to the restrictions on applicability defined below. Until that time, EN 13211 is the only accepted Reference Method for both short-term (periodic) measurements and for calibrating continuous monitoring systems, including those with long-term sampling systems. EN 13211 is a wet chemistry approach that relies on absorption of mercury into impinger solutions. The substance measured according to this specification is the total vapour phase mercury in the flue gas, which represents the sum of the elemental mercury (Hg0) and gaseous forms of oxidized mercury (Hg2+), such as mercury (II) chloride, in mass concentration units of micrograms (µg) per dry meter cubed (m3). The analytical range is typically 0,1 to greater than 50 µg/m3. The sorbent tube approach is intended for use under relatively low particulate conditions (typically less than 100 mg/m3) when monitoring downstream of all pollution control devices, e.g. at coal fired power plants and cement plants. In this case, the contribution of mercury in the particulate fraction is considered to be negligible (typically less than 5 % of total mercury). However, it shall be noted that the sorbent trap does take account of the finest particle fraction that is sampled with the flue gas, in addition to capturing the vapour phase mercury. This specification also contains routine procedures and specifications that are designed to evaluate the ongoing performance of an installed sorbent trap monitoring system. The operator of the industrial installation is responsible for the correct calibration, maintenance and operation of this long-term sampling system. Additional requirements for calibration and quality assurance of the long-term sampling system are then defined in EN 14884 and EN 14181.