EN 13194:2008

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Kemikalije, ki se uporabljajo za pripravo pitne vode - Ocetna kislinaProdukte zur Aufbereitung von Wasser für den menschlichen Gebrauch - EssigsäureProduits chimiques pour le traitement de l'eau destinée à la consommation humaine - Acide acétiqueChemicals used for treatment of water intended for human consumption - Acetic acid71.100.80Chemicals for purification of water13.060.20Pitna vodaDrinking waterICS:Ta slovenski standard je istoveten z:EN 13194:2008SIST EN 13194:2008en,fr,de01-november-2008SIST EN 13194:2008SLOVENSKI
STANDARDSIST EN 13194:20011DGRPHãþD

EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 13194July 2008ICS 71.100.80Supersedes EN 13194:2000
English VersionChemicals used for treatment of water intended for humanconsumption - Acetic acidProduits chimiques pour le traitement de l'eau destinée à laconsommation humaine - Acide acétiqueProdukte zur Aufbereitung von Wasser für denmenschlichen Gebrauch - EssigsäureThis European Standard was approved by CEN on 28 June 2008.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the CEN Management Centre or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2008 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 13194:2008: ESIST EN 13194:2008

General information on acetic acid.19 Annex B (normative)
General rules relating to safety.21 Bibliography.22
Density g/ml 80 1,068 to 1,072 99,85 1,049 to 1,050 3.3.3 Solubility in water Miscible. 3.3.4 Vapour pressure (at 20 °C) 1,57 kPa (for pure acetic acid) 3.3.5 Boiling point at 100 kPa 3) 118 °C (for pure acetic acid) 3.3.6 Melting point 16,2 °C (for pure acetic acid)
1 ) Chemical Abstracts Service Registry Number. 2 ) European Inventory of Existing Commercial Chemical Substances. 3) 100 kPa = 1 bar. SIST EN 13194:2008

mg/kg of pure acetic acid
Formic acid max. 500 Acetaldehyde max. 50 4.4 Chemical parameters NOTE For the purpose of this European Standard, "chemical parameters" are those defined in the EU Directive 98/83/EC of 3 November 1998 (see [1]). The content of chemical parameters shall conform to the requirements specified in Table 3. Table 3 — Chemical parameters Parameter
Limit in
mg/kg of pure acetic acid Arsenic (As) max. 0,5 Cadmium (Cd) max. 0,5 Chromium (Cr) max. 0,5 Mercury (Hg) max. 0,5 Nickel (Ni) max. 0,5 Lead (Pb) max. 0,5 Antimony (Sb) max. 0,5 Selenium (Se) max. 0,5 NOTE Cyanide does not exist in the acetic acid medium. Pesticides and polycyclic aromatic hydrocarbons are not by-products of the manufacturing process. 5 Test methods 5.1 Sampling 5.1.1 Relevant Standards Observe the general recommendations of ISO 3165 and take account of ISO 6206. 5.1.2 Sampling from drums and bottles 5.1.2.1 General 5.1.2.1.1 Mix the contents of the container to be sampled by shaking the container, by rolling it or by rocking it from side to side, taking care not to damage the container or spill any of the liquid. 5.1.2.1.2 If the design of the container is such (for example, a narrow-necked bottle) that it is impracticable to use a sampling implement, take a sample by pouring after the contents have been thoroughly mixed. Otherwise, proceed as described in 5.1.2.1.3. SIST EN 13194:2008

1×××=
(1) where V
is the volume, in millilitres, of sodium hydroxide solution (5.2.1.2.1) used; c
is the concentration, in moles per litre, of sodium hydroxide solution (5.2.1.2.1); 0,06005 is the mass in grams of acetic acid equivalent to 1 ml of sodium hydroxide solution c (NaOH) = 1,0 mol/l; mo
is the mass, in grams, of the test sample. 5.2.1.6 Repeatability limit The absolute difference between two single test results, obtained under repeatability conditions, shall not be greater than the repeatability limit value, r, as calculated from the following equation: r = 0,05 z
(2) where z is the mean of the two results, expressed in mass fraction %. NOTE Repeatability conditions are conditions where mutually independent test results are obtained with the same method on identical test material in the same laboratory by the same operator using the same equipment within short intervals of time. 5.2.2 Impurities 5.2.2.1 Formic acid content (HCOOH) 5.2.2.1.1 Principle A sample of acetic acid is introduced into a gas chromatograph containing a packed column and maintained at 135 °C. Butan-2-one is used as internal standard. 5.2.2.1.2 Reagents All reagents shall be of a recognized analytical grade and the water used shall conform to grade 3 in accordance with EN ISO 3696. SIST EN 13194:2008
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