ISO 9020:1994
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
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Binders for paints and varnishes Determination of free-formaldehyde content of amino resins Sodium sulfite titrimetric method
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09-03-2019
03-02-1994
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The method specified is based on reacting free formaldehyde and alcohol formaldehyde semiacetals in a test portion with excess sodium sulfite solution at a temperature of 0 C to form hydroxymethane sulfonate, titrating the excess sodium sulfite with iodine solution, decomposing hydroxymethane sulfonate with sodium carbonate solution and titrating the sodium sulfite liberated with iodine solution. The method is applicable to resins resulting from the polycondensation of urea and melamine with formaldehyde and to furan resins resulting from the polycondensation of furfuryl alcohol with formaldehyde without further modification.
| DocumentType |
Standard
|
| Pages |
5
|
| PublisherName |
International Organization for Standardization
|
| Status |
Withdrawn
|
| SupersededBy |
| Standards | Relationship |
| NBN EN ISO 9020 : 1998 | Identical |
| NEN EN ISO 9020 : 1998 | Identical |
| NS EN ISO 9020 : 1ED 1998 | Identical |
| I.S. EN ISO 9020:1998 | Identical |
| PN EN ISO 9020 : 2000 | Identical |
| SN EN ISO 9020 : 1998 | Identical |
| UNI EN ISO 9020 : 2001 | Identical |
| BS EN ISO 9020:1998 | Identical |
| UNE-EN ISO 9020:1998 | Identical |
| EN ISO 9020 : 1998 | Identical |
| DIN EN ISO 9020 E : 1998 | Identical |
| NF EN ISO 9020 : 1998 | Identical |
| BS 6782-7(1996) : 1996 AMD 10177 | Identical |
| DIN EN ISO 9020:1998-06 | Identical |
| ISO 22241-2:2006 | Diesel engines NOx reduction agent AUS 32 Part 2: Test methods |
| BS ISO 22241-2:2006 | Diesel engines. NOx reduction agent AUS 32 Test methods |
| BS EN ISO 10082:2000 | Plastics. Phenolic resins. Classification and test methods |
| 14/30286323 DC : 0 | BS ISO 18611-2 - SHIPS AND MARINE TECHNOLOGY - MARINE NOX REDUCTION AGENT AUS 40 - PART 2: TEST METHODS |
| BS 6782-8(1996) : 1996 AMD 10178 | BINDERS FOR PAINTS - GENERAL METHODS OF TEST FOR AMINO RESINS |
| ISO 11908:1996 | Binders for paints and varnishes — Amino resins — General methods of test |
| ISO 9397:1995 | Plastics Phenolic resins Determination of free-formaldehyde content Hydroxylamine hydrochloride method |
| BS EN ISO 9397:1997 | Plastics. Phenolic resins. Determination of free-formaldehyde content. Hydroxylamine hydrochloride method |
| EN ISO 11908:1998 | Binders for paints and varnishes - Amino resins - General methods of test (ISO 11908:1996) |
| EN ISO 9397 : 1997 | PLASTICS - PHENOLIC RESINS - DETERMINATION OF FREE-FORMALDEHYDE CONTENT - HYDROXYLAMINE HYDROCHLORIDE METHOD |
| BS EN ISO 11908:1998 | Binders for paints and varnishes. Amino resins. General methods of test |
| ISO 648:2008 | Laboratory glassware — Single-volume pipettes |
| ISO 842:1984 | Raw materials for paints and varnishes Sampling |
| ISO 385-1:1984 | Laboratory glassware — Burettes — Part 1: General requirements |
| ISO 3696:1987 | Water for analytical laboratory use — Specification and test methods |
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