BS 3762-3.25:1989
Current
The latest, up-to-date edition.
Analysis of formulated detergents Quantitative test methods - Methods for determination of water and volatile matter content
Hardcopy , PDF
English
29-09-1989
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Foreword
Method
1. Scope
2. Method 1. Entrainment
3. Method 2. Oven drying
4. Method 3. Karl Fischer
5. Test report
Entrainment method using azeotropic distillation with xylene, oven drying method (loss in mass on heating at 150°C) and Karl Fischer method.
| Committee |
CII/34
|
| DevelopmentNote |
Supersedes 88/52266 DC and BS 3762(19640 (07/2005) Reviewed and confirmed by BSI, January 2011. (12/2010)
|
| DocumentType |
Standard
|
| Pages |
10
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
| Supersedes |
This Section of BS 3762 describes methods for determining the content of water or volatile matter in formulated detergents.
NOTE 1 The water determined may include water of crystallization.
Method 1 is for determination of water in samples that do not contain volatile compounds that are miscible with water, for example, low molecular mass alcohols. Method 2 is for determination of the loss in mass on heating at 150 °C, which indicates the volatile matter content; the result will be the water content if water is the only volatile compound in the sample. Method 3 is for determination of water in liquids and in pastes and solids that release all their water during the titration of a solution or a dispersion in methanol; it is not applicable to samples that contain noticeable amounts of oxidizing agents, ketones, strong acids or strong bases.
NOTE 2 The titles of the publications referred to in this Section are listed on the inside back cover.
| Standards | Relationship |
| ISO 4318:1989 | Similar to |
| BS 1715-2.6:1989 | Analysis of soaps. Quantitative test methods Method for determination of moisture and volatile matter content |
| BS 6829-0:1991 | Analysis of surface active agents (raw materials) General introduction |
| BS 6829-1.5:1990 | Analysis of surface active agents (raw materials). General methods Methods for determination of water content |
| BS 756:1952 | Specification for Dean and Stark apparatus |
| BS 2511:1970 | Methods for the determination of water (Karl Fischer method) |
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