ISO 15587-1:2002

Standard
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Norsk tittel: Water quality — Digestion for the determination of selected elements in water — Part 1: Aqua regia digestion
Engelsk tittel: Water quality — Digestion for the determination of selected elements in water — Part 1: Aqua regia digestion
Varetype: Standard
Språk: Engelsk
Utgave: 1 (2002-02-28)
Antall sider: 18
Pris:

NOK 1 506,00 (eks. mva)
NOK 1 882,50 (ink. mva)

Omfang: <p>This part of <std std-id="iso:std:iso:15587:en" type="undated"><std-ref>ISO 15587</std-ref></std> specifies a method for extracting trace elements from a water sample using <italic>aqua regia</italic> as a digestion agent. The method is applicable to all types of waters with a suspended solids mass concentration of less than 20 g/l and a mass concentration of total organic carbon (TOC) expressed as carbon of less than 5 g/l.</p><p>The <italic>aqua regia</italic> digestion method is empirical and it might not release elements completely. However, for most environmental applications, the result is fit for purpose.</p><p><italic>Aqua regia</italic> digestion is suitable for the release of: Ag, Al, As, B, Ba, Be, Ca, Cd, Co, Cr, Cu, Fe, Hg, K, Mg, Mn, Mo, Na, Ni, P, Pb, Sb, Se, Sn, Sr, Tl, V, Zn. It is not suitable for the digestion of refractory compounds such as SiO<sub>2</sub>, TiO<sub>2</sub> and Al<sub>2</sub>O<sub>3</sub>. The presence of chloride in the digestion solution may limit the application of analytical techniques.</p><p>The method is generic and may be implemented using a wide variety of equipment provided</p><list list-type="bullet"><list-item><label>—</label><p>the digestion composition is unchanged,</p></list-item><list-item><label>—</label><p>the digestion temperature is known, and</p></list-item><list-item><label>—</label><p>the digestion duration is in accordance with this temperature.</p></list-item></list>
Fastsatt: 2002-02-28
ICS: 13.060.50 - Undersøkelse av kjemikaler i vann