ISO 7327:1994
Current
The latest, up-to-date edition.
Plastics Hardeners and accelerators for epoxide resins Determination of free acid in acid anhydride
Hardcopy , PDF 1 User , PDF 3 Users , PDF 5 Users , PDF 9 Users
English, French
23-06-1994
The principle of the method specified is reacting a small amount of free acid present in a test portion of acid anhydride hardener or accelerator with rhodamine 6G to colour the test solution pink, measuring the absorbance of the coloured solution at a wavelength of about 510 nm using a spectrometer, determining the free-acid content from a calibration curve. The method is suitable for most anhydrides except for polyester and oligomeric anhydrides which may give too wide a scatter of results.
DocumentType |
Standard
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Pages |
3
|
PublisherName |
International Organization for Standardization
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Status |
Current
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Standards | Relationship |
NBN EN ISO 7327 : 1997 | Identical |
NEN EN ISO 7327 : 1997 | Identical |
NS EN ISO 7327 : 1ED 1997 | Identical |
I.S. EN ISO 7327:1998 | Identical |
PN EN ISO 7327 : 2002 | Identical |
SN EN ISO 7327 : 1998 | Identical |
UNI EN ISO 7327 : 2000 | Identical |
UNE-EN ISO 7327:1998 | Identical |
BS 2782-4.433E(1996) : AMD 9699 | Identical |
BS EN ISO 7327:1997 | Identical |
EN ISO 7327:1997 | Identical |
NF EN ISO 7327 : 1997 | Identical |
DIN EN ISO 7327:1997-11 | Identical |
PNE-prEN ISO 7327 | Identical |
09/30192396 DC : DRAFT APR 2009 | BS ISO 18280 - PLASTICS - EPOXY RESINS - TEST METHODS |
ISO/IEC TR 14252:1996 | Information technology — Guide to the POSIX Open System Environment (OSE) |
00/120623 DC : DRAFT FEB 2000 | ISO/CD 18280 - EPOXIDE RESINS - DEFINITIONS AND TEST METHODS |
BS ISO/IEC TR 14252:1996 | Information technology. Guide to the POSIX open system environment (OSE) |
BS ISO 18280:2010 | Plastics. Epoxy resins. Test methods |
ISO 18280:2010 | Plastics Epoxy resins Test methods |
ISO 760:1978 | Determination of water Karl Fischer method (General method) |
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