Plastics - Phenolic resins - Determination of hexamethylenetetramine content - Kjeldahl method and perchloric acid method (ISO 8988:1995); German version EN ISO 8988:1997— 5 стр.
Plastics - Phenolic resins - Determination of hexamethylenetetramine content - Kjeldahl method and perchloric acid method (ISO 8988:1995); German version EN ISO 8988:1997— 5 стр.