DEFSTAN 68-125/3(2006) : 2006

Foreword
1 Scope
2 Warning
3 Normative References
4 Abbreviations
5 Description
6 Composition
7 Test Requirements
8 Shelf Life
9 Methods of Test
10 Containers and Marking of Containers
Annex A - Visual Examination
   A.1 Apparatus
   A.2 Sampling
   A.3 Visual Examination
   A.4 Reporting
Annex B - Determination of Sulfate
   B.1 Outline
   B.2 Apparatus
   B.3 Reagents
   B.4 Procedure
   B.5 Reporting
Annex C - Determination of Chloride
   C.1 Outline
   C.2 Apparatus
   C.3 Reagents
   C.4 Procedure
   C.5 Reporting
Annex D - Determination of Sulfated Ash on Ignition
   D.1 Apparatus
   D.2 Reagent
   D.3 Procedure
   D.4 Calculation and Reporting
Annex E - Determination of Reducing Substances
   E.1 Outline
   E.2 Apparatus
   E.3 Reagents
   E.4 Procedure
   E.5 Calculation and Reporting
Annex F - Determination of Acidity
   F.1 Outline
   F.2 Apparatus
   F.3 Reagents
   F.4 Procedure
   F.5 Calculation and Reporting
Annex G - Determination of Heavy Metals, as Lead
   G.1 Outline
   G.2 Apparatus
   G.3 Reagents
   G.4 Procedure
   G.5 Reporting
Annex H - Determination of Iron
   H.1 Outline
   H.2 Apparatus
   H.3 Reagents
   H.4 Procedure
   H.5 Reporting

Specifies requirements for gluconic acid, in the form of a 30% solution in water, intended for addition to caustic soda lye for the in-situ preparation of alkaline cleaning and de-rusting baths.