UNI EN 1557 : 1999
Current
The latest, up-to-date edition.
SURFACE ACTIVE AGENTS - COLORIMETRIC CHARACTERIZATION OF OPTICALLY CLEAR COLOURED LIQUIDS (PRODUCTS) AS X, Y, Z TRISTIMULUS VALUES IN TRANSMISSION
30-11-1999
Foreword
0 Introduction
1 Scope
2 Normative references
3 Principle
4 Apparatus and reagents
5 Preparation of the test sample
6 Procedure
7 Calculation
8 Test report
Annex A (informative) Colour numbers in comparison
Annex B (informative) Bibliography
Annex C (informative) Notes on procedure
Annex D (informative) Results of a ring test of APHA-
measurements
Defines a method for the colorimetric characterization of optically clear, slightly tinted liquids by broad-band measurement of pure transmittance with tristimulus value measuring filters as Tx, Ty and Tz.
| DocumentType |
Standard
|
| PublisherName |
Ente Nazionale Italiano di Unificazione (UNI)
|
| Status |
Current
|
| Standards | Relationship |
| SN EN 1557 : 1997 | Identical |
| NBN EN 1557 : 1996 | Identical |
| DIN EN 1557:1997-03 | Identical |
| UNE-EN 1557:1997 | Identical |
| EN 1557:1996 | Identical |
| NS EN 1557 : 1ED 1997 | Identical |
| NF EN 1557 : 1996 | Identical |
| I.S. EN 1557:1997 | Identical |
| NEN EN 1557 : 1996 | Identical |
| BS EN 1557:1997 | Identical |
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