SIS-CEN/TS 17638:2021

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Teknisk specifikation

SIS-CEN/TS 17638:2021

Språk: engelska/English Utgåva: 1

Utsläpp från stationära källor – Bestämning av

masskoncentration av formaldehyd – Manuell metod Stationary source emissions – Manual method for the

determination of the mass concentration of formaldehyde – Reference method

This preview is downloaded from www.sis.se. Buy the entire This preview is downloaded from www.sis.se. Buy the entire This preview is downloaded from www.sis.se. Buy the entire This preview is downloaded from www.sis.se. Buy the entire standard via https://www.sis.se/std-80030023

standard via https://www.sis.se/std-80030023 standard via https://www.sis.se/std-80030023 standard via https://www.sis.se/std-80030023

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Fastställd: 2021-06-29 ICS: 13.040.40

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Denna tekniska specifikation är inte en svensk standard. Detta dokument innehåller den engelska språkversionen av CEN/TS 17638:2021, utgåva 1.

This Technical Specification is not a Swedish Standard. This document contains the English language version of CEN/TS 17638:2021, edition 1.

This preview is downloaded from www.sis.se. Buy the entire standard via https://www.sis.se/std-80030023

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LÄSANVISNINGAR FÖR STANDARDER

I dessa anvisningar behandlas huvudprinciperna för hur regler och yttre begränsningar anges i standardiseringsprodukter.

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Rekommendation

En rekommendation är ett uttryck i ett dokuments innehåll som anger en valmöjlighet eller ett tillvägagångssätt som bedöms vara särskilt lämpligt utan att nödvändigtvis nämna eller utesluta andra. Rekommendationer uttrycks med hjälpverbet bör (eller bör inte för avrådanden).

Instruktion

Instruktioner anges i imperativ form och används för att ange hur något görs eller utförs. De kan underordnas en annan regel, såsom ett krav eller en rekommendation. De kan även användas självständigt, och är då att betrakta som krav.

Förklaring

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READING INSTRUCTIONS FOR STANDARDS

These instructions cover the main principles for the use of provisions and external constraints in standardization deliverables.

Requirement

A requirement is an expression, in the content of a document, that conveys objectively verifiable criteria to be fulfilled, and from which no deviation is permitted if conformance with the document is to be claimed. Requirements are expressed by the auxiliary shall (or shall not for prohibition).

Recommendation

A recommendation is an expression, in the content of a document, that conveys a suggested possible choice or course of action deemed to be particularly suitable, without necessarily mentioning or excluding others. Recommendations are expressed by the auxiliary should (or should not for dissuasion).

Instruction

An instruction is expressed in the imperative mood and is used in order to convey an action to be performed. It can be subordinated to another provision, such as a requirement or a recommendation. It can also be used independently and is then to be regarded as a requirement.

Statement

A statement is an expression, in the content of a document, that conveys information. A statement can express permission, possibility or capability. Permission is expressed by the auxiliary may. There is no recommended opposite expression for the auxiliary may in standardization, prohibition is expressed by the use of shall not in accordance with the rules for requirements. Possibility and capability are expressed by the auxiliary can (its opposite being cannot).

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TECHNICAL SPECIFICATION SPÉCIFICATION TECHNIQUE TECHNISCHE SPEZIFIKATION

CEN/TS 17638

June 2021

ICS 13.040.40

English Version

Stationary source emissions - Manual method for the determination of the mass concentration of formaldehyde

- Reference method

Emissions de sources fixes - Méthode manuelle pour la détermination de la concentration massique en

formaldéhyde - Méthode de référence

Emissionen aus stationären Quellen - Manuelles Verfahren zur Bestimmung der Massenkonzentration

von Formaldehyd - Referenzverfahren

This Technical Specification (CEN/TS) was approved by CEN on 16 May 2021 for provisional application.

The period of validity of this CEN/TS is limited initially to three years. After two years the members of CEN will be requested to submit their comments, particularly on the question whether the CEN/TS can be converted into a European Standard.

CEN members are required to announce the existence of this CEN/TS in the same way as for an EN and to make the CEN/TS available promptly at national level in an appropriate form. It is permissible to keep conflicting national standards in force (in parallel to the CEN/TS) until the final decision about the possible conversion of the CEN/TS into an EN is reached.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom.

EUROPEAN COMMITTEE FOR STANDARDIZATION C O M I T É E UR O P É E N DE N O R M A L I SA T I O N E UR O P Ä I SC H E S KO M I T E E F ÜR N O R M UN G

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels

worldwide for CEN national Members. Ref. No. CEN/TS 17638:2021 E

SIS-CEN/TS 17638:2021 (E)

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European foreword

This document (CEN/TS 17638:2021) has been prepared by Technical Committee CEN/TC 264 “Air quality”, the secretariat of which is held by DIN.

Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN shall not be held responsible for identifying any or all such patent rights.

According to the CEN/CENELEC Internal Regulations, the national standards organisations of the following countries are bound to announce this Technical Specification: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.

SIS-CEN/TS 17638:2021 (E)

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5

Introduction

Formaldehyde is a carcinogenic pollutant that is generated in different industrial sectors, like energy industries (combustion plants (e.g. for wood and gas), combustion engines (gas engines and turbines)), chemical industry (e.g. formaldehyde production), food industry (e.g. smoking plants), wood industry (e.g. production of wood-based panels or wood pellets) and thus contained in emissions of these processes.

Currently, no European (EN) or International (ISO) Standard exists for the continuous or periodic measurement of formaldehyde emissions, which are being addressed, e.g. by the European Commission in its implementing decision 2015/2119 [1] establishing best available techniques (BAT) conclusions, under Directive 2010/75/EU [2], for the production of wood-based panels.

Instead, different national methods for formaldehyde measurements are currently applied, e.g. US EPA M316 [3], VDI 3862 Part 4 [4], VDI 3862 Part 6 [5], and FD X43-319 [6], all of them based on sampling in aqueous absorption solutions. Several comparison studies have shown that the equivalence of these methods is not ensured.

This measurement method is specified as a Technical Specification because currently no sufficient validation data are available. A comprehensive validation programme has been developed and will be carried out as soon as the funding is ensured (see Annex C).

SIS-CEN/TS 17638:2021 (E)

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1 Scope

This document specifies the reference method for the determination of the concentration of formaldehyde in emissions from stationary sources. Waste gas samples are taken by absorption in water and subsequently analysed by spectrophotometry or HPLC. The method applies to waste gases in which the formaldehyde concentration is 2 mg/m³ to 60 mg/m³, on dry basis, at the reference conditions of 273 K and 101,3 kPa.

The specific components and the requirements for the measuring system are described. A number of performance characteristics with associated minimum performance criteria are specified for the measuring system.

2 Normative references

The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.

EN 13284-1:2017, Stationary source emissions - Determination of low range mass concentration of dust - Part 1: Manual gravimetric method

EN 15259:2007, Air quality - Measurement of stationary source emissions - Requirements for measurement sections and sites and for the measurement objective, plan and report

EN ISO 14956, Air quality – Evaluation of the suitability of a measurement procedure by comparison with a required measurement uncertainty (ISO 14956)

ISO/IEC Guide 98-3:2008, Uncertainty of measurement - Part 3: Guide to the expression of uncertainty in measurement (GUM:1995)

3 Terms and definitions

For the purposes of this document, the following terms and definitions apply.

3.1 absorber

device in which formaldehyde is absorbed into an absorption solution Note 1 to entry: For formaldehyde absorption wash bottles are used as absorbers.

3.2 limit of quantification

lowest amount of an analyte that is quantifiable with a given confidence level

Note 1 to entry: For a manual method the limit of quantification is usually calculated as ten times the standard deviation of blank measurements provided that the blank value is negligible. This corresponds to a confidence level of 95 %.

SIS-CEN/TS 17638:2021 (E)

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7 3.3 analytical repeatability

closeness of the agreement between the results of successive measurements of the same measure and carried out under the same conditions of measurement

Note 1 to entry: Analytical repeatability conditions include:

— the same measurement procedure;

— the same laboratory;

— the same sampling equipment, used under the same conditions and at the same location;

— repetition over a short period of time.

Note 2 to entry: Analytical repeatability may be expressed quantitatively in terms of the dispersion characteristics of the results.

Note 3 to entry: In this document the analytical repeatability is expressed as a value with a level of confidence of 95 %.

3.4 calibration

set of operations that establish, under specified conditions, the relationship between values of quantities indicated by a measuring method or measuring system, and the corresponding values given by the applicable reference

3.5 certified reference material

CRM reference material, accompanied by documentation issued by an authoritative body and providing one or more specified property values with associated uncertainties and traceabilities, using valid procedures [SOURCE: ISO/IEC Guide 99:2007 [7]]

3.6 chemical blank

content of an unexposed sample of the absorption solution, plus reagents that are added to the solution before analysis if necessary

3.7 combined uncertainty

standard uncertainty attached to the measurement result calculated by combination of several standard uncertainties

Note 1 to entry: According to the principles laid down in ISO/IEC Guide 98-3.

3.8 emission limit value

ELV limit value given in regulations such as EU Directives, ordinances, administrative regulations, permits, licences, authorisations or consents

Note 1 to entry: ELV can be stated as concentration limits expressed as half-hourly, hourly and daily averaged values, or mass flow limits expressed as hourly, daily, weekly, monthly or annually aggregated values.

SIS-CEN/TS 17638:2021 (E)

SIS-CEN/TS 17638:2021

Teknisk specifikation