GB/T 45090-2024 Plastics—Identification and marking of recycled plastics

GB/T 1844.1-1995 Symbols of plastics and resins—Part 1:Basic polymers and their special characteristics GB/T 1844.1-2008 Plastics—Symbols and abbreviated terms—Part 1:Basic polymers and their special characteristics GB/T 1844.1-2022 Plastics—Symbols and abbreviated terms—Part 1:Basic polymers and their special characteristics GB/T 1844.2-1995 Symbols of plastics and resins—Part 2:Fillers and reinforcing materials GB/T 1844.2-2008 Plastic—Symbols and abbreviated—Part 2:Fillers and reinforcing materials GB/T 1844.2-2022 Plastics—Symbols and abbreviated terms—Part 2:Fillers and reinforcing materials GB/T 1844.3-1995 Symbols of plastics and resins—Part 3:Plasticizers GB/T 1844.3-2008 Plastics—Symbols and abbrebiated terms—Part 3:Plasticizers GB/T 1844.3-2022 Plastics—Symbols and abbreviated terms—Part 3:Plasticizers GB/T 1844.4-2008 Plastics—Symbols and abbreviated terms—Part 4:Flame retardants GB/T 2035-1996 Terms and definitions for plastics GB/T 2035-2008 Terms and definitions for plastics GB/T 2035-2024 Plastics—Vocabulary GB/T 8170-1987 Rules for rounding off of numberical values GB/T 8170-2008 Rules of rounding off for numerical values & expression and judgement of limiting values GB/T 40006.1-2021 Plastics—Recycled plastic—Part 1:General rules