This standard specifies the pH value determination method for wood adhesives and resins. This standard applies to the determination of the pH value of liquid adhesives and resins (phenolic, urea-formaldehyde and melamine-formaldehyde resins) in the wood industry.
GB/T 14074.4-1993 history
2018GB/T 14074-2017 Adhesives for wood industry and their resins test methods
2006GB/T 14074-2006 Testing methods for wood adhesives and their resins
1993GB/T 14074.4-1993 Test methods for wood adhesives and their resins pH determination
GB/T 14074.4-1993 Test methods for wood adhesives and their resins pH determination was changed to GB/T 14074-2006 Testing methods for wood adhesives and their resins .