Plastics. Phenolic resins. Determination of hexamethylene-tetramine content. Kjeldahl method, perchloric acid method and hydrochloric acid method Ingestion-build-98192 It supersedes BS EN 60695-8-1:2008

It supersedes BS EN 60695-8-1:2008 which is withdrawn

PD 970:2005 specifies the technical purchase and supply requirements for wrought semi-finished products manufactured from a range of carbon

This standard is set to become a benchmark standard and a pre-requisite for tendering purposes

BS EN ISO 16484-5 defines data communication services and protocols for computer equipment used for monitoring and control of heating

BS EN 50443 discusses effects of electromagnetic interference on pipelines caused by high voltage a

Plastics. Phenolic resins. Determination of hexamethylene-tetramine content. Kjeldahl method, perchloric acid method and hydrochloric acid method Ingestion-build-98192 It supersedes BS EN 60695-8-1:20081 Scope 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