BS EN 12485:2010 - Chemicals used for treatment of water intended for human consumption. Calcium carbonate, high-calcium lime, half-burnt dolomite, magnesium oxide and calcium magnesium carbonate. Test methods – BSI British Standards

BS EN 12485:2010

Chemicals used for treatment of water intended for human consumption. Calcium carbonate, high-calcium lime, half-burnt dolomite, magnesium oxide and calcium magnesium carbonate. Test methods

Status : Superseded, Withdrawn   Published : May 2010 Replaced By : BS EN 12485:2017

WITHDRAWN TITLE
*To ask about withdrawn titles contact the
BSI Customer Services
cservices@bsigroup.com, +44 345 086 9001


BS EN 12485:2010 Chemicals used for treatment of water intended for human consumption. Calcium carbonate, high-calcium lime, half-burnt dolomite, magnesium oxide and calcium magnesium carbonate. Test methods

BS EN 12485 is a European Standard specifies the methods used for the chemical analyses and the determination of physical properties of calcium carbonate, high-calcium lime, half-burnt dolomite, magnesium oxide and calcium magnesium carbonate used to treat water for human consumption.

BS EN 12485 describes the reference methods and, in certain cases, an alternative method which can be considered to be equivalent. In the case of a dispute, only the reference methods are used.

Any other methods may be used provided they are calibrated, either against the reference methods or against internationally accepted reference materials, in order to demonstrate their equivalence.

Schematic diagrams of the analyses are given in Annex A

Contents of BS EN 12485:

Foreword
1 Scope
2 Normative references
3 General requirements
3.1 Number of determinations
3.2 Methods for analysis
3.3 Sample preparation
3.4 Reagents
3.5 Glassware
3.6 Expression of results
3.7 Repeatability and reproducibility limits
3.8 Test report
4 Determination of screen oversize of high-calcium lime
4.1 Air-jet sieving method
4.2 Wet sieving method
5 Preparation of test solutions
5.1 Fusion with lithium tetraborate
5.2 Extraction with hydrochloric acid
5.3 Microwave digestion with nitric acid
5.4 Pressurized digestion with nitric acid
6 Conventional methods of determining major and minor constituents
6.1 Determination of free water
6.2 Loss on ignition at 450 °C
6.3 Determination of carbon dioxide
6.4 Determination of residue insoluble in hydrochloric acid
6.5 Determination of content of water soluble calcium oxide or calcium hydroxide (reference method)
6.6 Determination of sugar soluble calcium oxide or calcium hydroxide (alternative method)
6.7 Water-insoluble matter
6.8 Determination of free CaO
6.9 Determination of calcium oxide and magnesium oxide
6.10 Determination of sulfate
6.11 Determination of solubility index by conductivity
6.12 Calculation of the composition of a commercial product
7 Determination of constituents by modern techniques
7.1 Determination of minor constituents by AAS flame technique
7.2 Determination of major and minor constituents by ICP-OES
8 Determination of trace elements
8.1 Determination of lead, cadmium, chromium and nickel by AAS graphite tube technique
8.2 Determination of lead, cadmium, chromium and nickel by ICP-OES
8.3 Determination of arsenic, antimony and selenium by AAS hydride technique
8.4 Determination of mercury by cold-vapour technique
Annex A (informative) Analytical scheme
Annex B (informative) Table B.1: Precision data for the test methods
Bibliography

 




Standard NumberBS EN 12485:2010
TitleChemicals used for treatment of water intended for human consumption. Calcium carbonate, high-calcium lime, half-burnt dolomite, magnesium oxide and calcium magnesium carbonate. Test methods
StatusSuperseded, Withdrawn
Publication Date31 May 2010
Withdrawn Date14 September 2017
Normative References(Required to achieve compliance to this standard)prEN 16003, prEN 16004, EN 1017, EN 1018, EN ISO 3696:1995, ISO 4793:1980, EN 12518, EN 459-2, ISO 3696:1987, ISO 3165
Informative References(Provided for Information)BS 6463, ISO 5725-2
Replaced ByBS EN 12485:2017
ReplacesBS EN 12485:2001
International RelationshipsEN 12485:2010
DescriptorsCalcium inorganic compounds, Dolomite, Lime, Carbonates, Magnesium oxide, Water treatment, Water purification, Physical property measurement, Magnesium inorganic compounds, Potable water, Calcium oxide, Chemical analysis and testing
ICS13.060.20
71.100.80
Title in FrenchProduits chimiques utilisés pour le traitement de l'eau destinée à la consommation humaine. Carbonate de calcium, chaux et dolomie semi calcinée. Méthodes d'analyse
Title in GermanProdukte zur Aufbereitung von Wasser für den menschlichen Gebrauch. Calciumcarbonat, Weißkalk, halbgebrannter Dolomit, Magnesiumoxid und Calciummagnesiumcarbonat. Analytische Verfahren
CommitteeCII/59
ISBN978 0 580 58193 9
PublisherBSI
FormatA4
DeliveryYes
Pages70
File Size1.05 MB
Price£254.00


WITHDRAWN TITLE
*To ask about withdrawn titles contact the
BSI Customer Services
cservices@bsigroup.com, +44 345 086 9001
 Your basket
Your basket is empty

Multi-user access to over 3,500 medical device standards, regulations, expert commentaries and other documents


Collaborate, Innovate, Accelerate.


Worldwide Standards
We can source any standard from anywhere in the world


BSOL

The faster, easier way to work with standards