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Norm
ÖNORM EN ISO 8988
Issue date: 2006 12 01
Plastics - Phenolic resins - Determination of hexamethylenetetramine content - Kjeldahl method, perchloric acid method and hydrochloric acid method (ISO 8988:2006)
This International Standard specifies three methods for the determination of the hexamethylenetetramine
(hexa) content of phenolic resins. The three methods are equivale...
Valid
Publisher:
Austrian Standards International
Format:
Digital | 11 Pages
Language:
German
| English
| Download GER/ENG
Optionally co-design standards:
ICS
This International Standard specifies three methods for the determination of the hexamethylenetetramine
(hexa) content of phenolic resins. The three methods are equivalent. The Kjeldahl method described in
Clause 3 is not applicable if there are other components containing nitrogen in the phenolic resin. The
perchloric acid method and the hydrochloric acid method described in Clause 4 and Clause 5, respectively,
are only applicable if there are no other basic or acidic additives in the resin. If the resin contains additives
which can be oxidized by perchloric acid, only the hydrochloric acid method (Clause 5) is applicable.
ÖNORM EN ISO 8988
2006 12 01
Plastics - Phenolic resins - Determination of hexamethylenetetramine content - Kjeldahl method, perc...
Norm
↖
ÖNORM EN ISO 8988
1997 06 01
Plastics - Phenolic resins - Determination of hexamethylenetetramine content - Kjeldahl method and p...
Norm
Norm
Issue date :
2006 08 25
Plastics — Phenolic resins — Determination of hexamethylenetetramine content — Kjeldahl method, perchloric acid method and hydrochloric acid method
