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AS 3580.13.3-1993

Withdrawn
Withdrawn

A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.

Methods for sampling and analysis of ambient air Determination of fluorides - Total gaseous and acid-soluble airborne particulate fluoride - Sodium acetate coated tube absorption
Available format(s)

Hardcopy , PDF 1 User , PDF 3 Users , PDF 5 Users , PDF 9 Users

Withdrawn date

30-06-2017

Language(s)

English

Published date

01-01-1993

Preview

1 - AS 3580.13.3-1993 METHODS FOR SAMPLING AND ANALYSIS OF AMBIENT AIR - DETERMINATION OF FLUORIDES-TOTAL GASEOUS AND...
1 - PREFACE
1 - FOREWORD
1 - METHOD
1 - 1 SCOPE
2 - 2 REFERENCED DOCUMENTS
2 - 3 PRINCIPLE
2 - 4 REAGENTS
2 - 4.1 General requirements
2 - 4.2 Solutions
2 - 4.2.1 Sodium hydroxide solution (200 g/L)
2 - 4.2.2 Sodium acetate absorbing solution
2 - 4.2.3 Total ionic strength adjustment buffer (TISAB)
2 - 4.3 Standard solutions
2 - 4.3.1 Stock fluoride solution (1 mL = 1 mg HF)
2 - 4.3.2 Standard fluoride solution (1 mL = 20 ug HF)
3 - 4.3.3 Working standard fluoride solution (1 mL = 0.2 ug HF)
3 - 5 APPARATUS
3 - 5.1 Glassware
3 - 5.2 Sampling train
3 - 5.3 Specific ion meter or expanded scale pH meter
3 - 5.4 Combination fluoride ion-selective electrode or separate fluoride ion and reference electrodes
3 - 5.5 Magnetic stirrer and PTFE-coated spin bars
3 - 5.6 Plastic beakers and containers
3 - 6 SAMPLING
3 - 6.1 Location
5 - 6.2 Sampling
5 - 6.2.1 Absorption U-tube preparation
6 - 6.2.2 Sampling procedure
6 - 7 PROCEDURE
6 - 7.1 Extraction
7 - 7.2 Determination
7 - 7.2.1 Calibration
7 - 7.2.2 Test solution measurement
8 - 8 CALCULATIONS
8 - 9 PRECISIONCollection
8 - 10 TEST REPORT

Sets out a method for the collection of gaseous and acid-soluble airborne particulate fluoride from ambient air and the determination of the total fluoride collected by use of an ion-selective electrode.

This Standard sets out a method for the collection of total gaseous and acid-soluble airborne particulate fluoride in ambient air and its analysis using a fluoride ion-selective electrode.The method is applicable to total gaseous and acid-soluble airborne particulate fluoride in ambient air at concentrations of 0.01ug/m3 or greater.The upper limits of determination are 2000 ug/m3 of hydrogen fluoride where a 10% (m/V) sodium acetate solution is used and 700 ug/m3 where a 5% (m/V) sodium acetate solution is used for collection. These values are based on a one day sampling period and a sampler flow rate of 10 L/min.The presence of acidic gases other than hydrogen fluoride affects the upper limit of determination.NOTE: This method is subject to certain interferences. However, the addition of total ionic strength adjustment buffer (TISAB) eliminates a number of possible interferences. Variation in ionic strength is overcome by maintaining a high concentration of sodium chloride in the TISAB solution. Interference from hydroxide ions is overcome by buffering the TISAB solution to a pH of between 5 and 6. The effects of metallic ions are minimized by the addition of a complexing agent.

Committee
EV-007
DocumentType
Standard
ISBN
0 7262 8385 1
Pages
9
PublisherName
Standards Australia
Status
Withdrawn
Supersedes

First published as AS 3580.13.3-1993.

AS 2162-1979 Code of practice for the use of volumetric glassware
AS 2922-1987 Ambient air - Guide for the siting of sampling units
AS 2165-1996 Laboratory glassware - Burettes
AS 2166-1995 One-mark pipettes
AS 2164-1995 Laboratory glassware - One-mark volumetric flasks

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