ISO 2174:1990
Current
The latest, up-to-date edition.
Surface active agents Preparation of water with known calcium hardness
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English, French
05-04-1990
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A stock solution is prepared by dissolving an appropriate quantity of calcium chloride in water. The calcium content of this stock solution is determined by complexometric titration with the disodium salt of (ethylenedinitrilo)tetraacetic acid (EDTA) using a mixture of Mordant Black 11 (C.I. 14645) and methyl red as indicator. Dilute solutions of the hardness required are prepared by dilution of appropriate volumes of the stock solution.
| DocumentType |
Standard
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| Pages |
4
|
| PublisherName |
International Organization for Standardization
|
| Status |
Current
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| Supersedes |
| Standards | Relationship |
| NS EN 12829 : 2011 | Identical |
| I.S. EN 12829:2011 | Identical |
| BS EN 12829:2011 | Similar to |
| NBN ISO 2174 : 1994 | Identical |
| UNE 55524:1992 | Identical |
| DIN 53910:1986-09 | Similar to |
| ISO 1065:1991 | Non-ionic surface-active agents obtained from ethylene oxide and mixed non-ionic surface-active agents Determination of cloud point |
| EN 12458:1999 | Surface active agents - Determination of stability in hard water |
| ISO 2267:1986 | Surface active agents Evaluation of certain effects of laundering Methods of preparation and use of unsoiled cotton control cloth |
| VDI 2083 Blatt 13.2:2009-01 | Cleanroom technology - Quality, production and distribution of ultrapure water - Microelectronics and other technical applications |
| BS 5377-1:1988 | Assessment of laundering effects by means of a cotton control cloth Specification for preparation and use of the cotton control cloth |
| ISO 9271:1992 | Decontamination of radioactively contaminated surfaces — Testing of decontamination agents for textiles |
| DIN EN ISO 16954:2015-11 | DENTISTRY - TEST METHODS FOR DENTAL UNIT WATERLINE BIOFILM TREATMENT (ISO 16954:2015) |
| BS EN ISO 16954:2015 | Dentistry. Test methods for dental unit waterline biofilm treatment |
| ISO 16954:2015 | Dentistry — Test methods for dental unit waterline biofilm treatment |
| EN ISO 16954:2015 | Dentistry - Test methods for dental unit waterline biofilm treatment (ISO 16954:2015) |
| EN 13996:2002 | Surface active agents - Foaming power and antifoaming power - Turbine stirring method |
| 14/30245318 DC : 0 | BS EN ISO 16954 - DENTISTRY - TEST METHODS FOR EVALUATING ANTIBACTERIAL BIOFILM TREATMENT METHODS FOR DENTAL UNIT WATER DELIVERY SYSTEMS |
| ISO 696:1975 | Surface active agents — Measurement of foaming power — Modified Ross-Miles method |
| I.S. EN ISO 16954:2015 | DENTISTRY - TEST METHODS FOR DENTAL UNIT WATERLINE BIOFILM TREATMENT (ISO 16954:2015) |
| BS EN 13996:2002 | Surface active agents. Foaming power and antifoaming power. Turbine stirring method |
| BS EN 12458:1999 | Surface active agents. Determination of stability in hard water |
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