Name: AS/NZS 1050.30:1994 - Methods for the analysis of iron and steel Determination of boron content - Curcumin spectrophotometric method
Brand: Standards Australia

Methods for the analysis of iron and steel Determination of boron content - Curcumin spectrophotometric method

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English

Published date

08-08-1994

Publisher

Standards Australia

Withdrawn date

08-17-2018

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3 - AS/NZS 1050.30:1994 METHODS FOR THE ANALYSIS OF IRON AND STEEL - DETERMINATION OF BORON CONTENT - CURCUMIN SPECTROPHOTOMETRIC
4 - PREFACE
5 - CONTENTS
7 - 1 Scope
7 - 2 Normative references
7 - 3 Principle
7 - 4 Reagents
7 - 4.1 Pure iron
7 - 4.2 Sodium hypophosphite monohydrate.
7 - 4.3 Hydrochloric acid
7 - 4.4 Nitric acid.
7 - 4.5 Sulfuric acid
7 - 4.6 Orthophosphoric acid
7 - 4.7 Acetic acid
8 - 4.8 Mixture of acetic and sulfuric acids.
8 - 4.9 Acetic buffer solution.
8 - 4.10 Sodium fluoride
8 - 4.11 Boron
8 - 4.12 Curcumin
8 - 5 Apparatus
8 - 5.1 Quartz beakers with quartz covers
8 - 5.2 Polypropylene or polytetrafluoroethylene volumetric flasks
8 - 5.3 Polypropylene or polytetrafluoroethylene bottle
8 - 5.4 Aluminium alloy block
8 - 5.5 Spectrophotometer
8 - 6 Sampling
8 - 7 Procedure
8 - 7.1 Test portion
9 - 7.2 Blank test 7.3.2 Formation of the coloured complex
9 - 7.2 Blank test
9 - 7.3 Determination
9 - 7.3.1 Preparation of the test solution
9 - 7.3.2 Formation of the coloured complex
9 - 7.3.3 Preparation of the compensating solution
9 - 7.3.4 Spectrophotometric measurements
10 - 7.4 Establishment of the calibration graph
10 - 7.4.1 Preparation of calibration solutions
10 - 7.4.2 Spectrophotometric measurements
10 - 7.4.3 Plotting the calibration graph
10 - 8 Expression of results
10 - 8.1 Calculation of the net absorbance
10 - 8.2 Calculation of the boron content
11 - 8.3 Precision
11 - 9 Test report
12 - Annex A - Examples of aluminium alloy blocks
14 - Annex B - Additional information on the international co-operative tests
15 - Annex C - Graphical representation of precision data
16 - Annex D - Additional precision tests conducted by European countries

Specifies a spectrophotometric method for the determination of boron content between 0.0005 percent and 0.01 percent in steel. This Standard is technically identical with and reproduced from ISO 10153:1991.

Committee	CH-010
DocumentType	Standard
ISBN	0 7262 8905 1
Pages	10
PublisherName	Standards Australia
Status	Withdrawn
Supersedes	AS 1050.30-1978

This International Standard specifies a curcumin spectrophotometric method for the determination of boron content in steel.

Standards	Relationship
ISO 10153:1991	Identical

First published as AS 1050.30-1978.
Jointly revised and redesignated as Joint Standard AS/NZS 1050.30:1994.

AS 2164-2003	Laboratory glassware - One-mark volumetric flasks
AS 1213-1982	Iron and steel - Methods of sampling
AS 2165-1996	Laboratory glassware - Burettes
AS 2850-1986	Chemical analysis - Interlaboratory test programs - For determining precision of analytical method(s) - Guide to the planning and conduct
AS 2164-1995	Laboratory glassware - One-mark volumetric flasks
AS 2166-1995	One-mark pipettes
AS 2166-2002	Laboratory glassware - One-mark pipettes

AS/NZS 4671:2001	Steel reinforcing materials
AS 1085.10-2002	Railway track material Rail anchors (Reconfirmed 2013)
AS 2556-2000	Electric resistance welded steel air heater tubes (Reconfirmed 2016)
AS 3600-2001	Concrete structures
AS 4728-2005	Electric resistance welded steel pipe for pressure purposes (Reconfirmed 2016)
AS 3751-2005	Underground mining - Slope haulage - Couplings, drawbars, and safety chains
AS 1085.2-2002	Railway track material Fishplates (Reconfirmed 2013)
AS 1472-2003	Carbon steel spring wire for mechanical springs (Reconfirmed 2016)
AS 1085.1-2002	Railway track material Steel rails (Reconfirmed 2013)
AS 1397-2011	Continuous hot-dip metallic coated steel sheet and strip - Coatings of zinc and zinc alloyed with aluminium and magnesium
AS 5100.8:2017	Bridge design Rehabilitation and strengthening of existing bridges
AS 2266-2002	Carbon steel spring wire for bedding and seating (Reconfirmed 2016)
AS 1858.1-2003	Electrodes and fluxes for submerged-arc welding Carbon steels and carbon-manganese steels
AS 1085.8-2002	Railway track material Dogspikes (Reconfirmed 2013)
AS 1548-2008	Fine grained, weldable steel plates for pressure equipment
AS 1397-2001	Steel sheet and strip - Hot-dipped zinc-coated or aluminium/zinc-coated

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AS/NZS 1050.30:1994

Methods for the analysis of iron and steel Determination of boron content - Curcumin spectrophotometric method

Table of Contents

Abstract

General Product Information

Scope

International Equivalents

History

Standards Referenced By This Book

Standards Referencing This Book

Industry

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