20231371-T-606
Plastics — Phenolic resins — Determination of hexamethylenetetramine content\r Kjeldahl method,perchloric acid method and hydrochloric acid method
DIN 53748
Chemical Analysis of Phenol-formaldehyde Resins; Phenoplastic Moulding Materials and Moulded Materials
ISO 8620:1986
Plastics — Phenolic resin powder — Sieve analysis using air-jet sieve apparatus