BS EN 974:2003
Current
The latest, up-to-date edition.
Chemicals used for treatment of water intended for human consumption. Phosphoric acid
Hardcopy , PDF
English
06-02-2004
Important note : Users cannot be edited or removed once added to your Multi user PDF.
Foreword
Introduction
1 Scope
2 Normative references
3 Description
4 Purity criteria
5 Test methods
6 Labelling - Transportation - Storage
Annex A (informative) General information on phosphoric acid
Annex B (normative) General rules relating to the safety
Annex C (informative) Determination of concentration by
measurement of density
Bibliography
Applies to phosphoric acid for treating water for human consumption. Covers the characteristics and defines requirements and corresponding methods of test for phosphoric acid, together with information on use for treatment of water.
| Committee |
B/504/10
|
| DevelopmentNote |
Supersedes 00/123895 DC (02/2004) Supersedes 93/500119 DC. (03/2007)
|
| DocumentType |
Standard
|
| Pages |
24
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
| Supersedes |
| Standards | Relationship |
| UNE-EN 974:2004 | Identical |
| NEN EN 974 : 2003 | Identical |
| NS EN 974 : 2ED 2003 | Identical |
| EN 974:2003 | Identical |
| I.S. EN 974:2003 | Identical |
| NBN EN 974 : 2003 | Identical |
| UNI EN 974 : 2004 | Identical |
| SN EN 974 : 2003 | Identical |
| NF EN 974 : 2004 | Identical |
| DIN EN 974:2004-01 | Identical |
| ISO 3165:1976 | Sampling of chemical products for industrial use — Safety in sampling |
| ISO 4285:1977 | Phosphoric acid for industrial use — Guide to sampling techniques |
| ISO 758:1976 | Liquid chemical products for industrial use — Determination of density at 20 degrees C |
| ISO 3696:1987 | Water for analytical laboratory use — Specification and test methods |
| EN ISO 3696:1995 | Water for analytical laboratory use - Specification and test methods (ISO 3696:1987) |
| ISO 6206:1979 | Chemical products for industrial use — Sampling — Vocabulary |
| ISO 5993:1979 | Sodium hydroxide for industrial use — Determination of mercury content — Flameless atomic absorption spectrometric method |
| ISO 649-2:1981 | Laboratory glassware — Density hydrometers for general purposes — Part 2: Test methods and use |
| ISO 3706:1976 | Phosphoric acid for industrial use (including foodstuffs) — Determination of total phosphorus (V) oxide content — Quinoline phosphomolybdate gravimetric method |
| ISO 2997:1974 | Phosphoric acid for industrial use — Determination of sulphate content — Method by reduction and titrimetry |
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