Skip to main content

ISO 9779:1993

Withdrawn Date published:

Warning: Withdrawn Standard. This document has been withdrawn without replacement. You may wish to search for a more up to date equivalent.

Metallurgical-grade fluorspar — Determination of lead content — Solvent extraction atomic absorption spectrometric method

The principle of the method specified is to decompose a test portion by a mixture of nitric, hydrofluoric and perchloric acids, dissolving the salts in hydrochloric acid after evaporation to dryness, extracting the lead from a dilute hydrochloric acid solution of the decomposed test portion into a solution of tri-n-octylphosphine oxide in 4-methyl-2-pentanone, aspirating the extract into the air/acetylene flame of an atomic absorption spectrometer, and measuring the absorbance at 283,3 nm. Applies to products having lead contents in the range 0,0006 % (m/m) to 0,01 % (m/m).

Get this standard Prices exclude GST
PDF ( Single user document)
$91.24 NZD
HardCopy
$91.24 NZD
Networkable PDF
Price varies
Preview only close
Prev {{ page }}/ {{ numPages }} Next
Preview only close
Prev {{ page }}/ {{ numPages }} Next
Pages: 6

Previous versions

Keep me up-to-date

Sign up to receive updates when there are changes to this standard

Related Information

Similar Standards

  • BS EN ISO 10058-1:2008

    Chemical analysis of magnesite and dolomite refractory products (alternative to the X-ray fluorescence method), Apparatus, reagents, dissolution and determination of gravimetric silica

  • BS EN ISO 10058-2:2008

    Chemical analysis of magnesite and dolomite refractory products (alternative to the X-ray fluorescence method), Wet chemical analysis

  • BS EN ISO 10058-3:2008

    Chemical analysis of magnesite and dolomite refractory products (alternative to the X-ray fluorescence method), Flame atomic absorption spectrophotometry (FAAS) and inductively coupled plasma atomic emission spectrometry (ICP-AES)

  • ISO 10058-1:2008

    Chemical analysis of magnesite and dolomite refractory products (alternative to the X-ray fluorescence method) — Part 1: Apparatus, reagents, dissolution and determination of gravimetric silica

Preview only close
Prev {{ page }}/ {{ numPages }} Next
Preview only close
Prev {{ page }}/ {{ numPages }} Next
Pages: 6

Previous versions

ISO 9779:1993

Get this standard Prices exclude GST
PDF ( Single user document)
$91.24 NZD
HardCopy
$91.24 NZD
Networkable PDF
Price varies

Request to add this standard to your subscription

ISO 9779:1993

Price varies
Online library subscription

Click "Send request for subscription" to request for your Account Administrator to add this standard to your subscripiton.

Cancel