GB/T 29646-2013
Modified biodegradable polyester used for blown film (English Version)

Standard No.

GB/T 29646-2013

Language

Chinese, Available in English version

Release Date

2013

Published By

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China

Latest

GB/T 29646-2013

Scope

This standard specifies the terms and definitions, requirements, test methods, inspection rules, signs, packaging, transportation and storage of modified polyester biodegradable plastics for blown film. This standard applies to biodegradable plastics (referred to as biodegradable plastics) that are prepared from one or more biodegradable polyester resins through plastic modification and can be used for blown films. Common polyester resins mainly include polylactic acid, poly α-hydroxyalkanoate, polybutylene succinate, aliphatic aromatic copolyester, etc.

GB/T 29646-2013 Referenced Document

• EN 13656 Soil, treated biowaste, sludge and waste - Digestion with a hydrochloric (HCl), nitric (HNO3) and tetrafluoroboric (HBF4) or hydrofluoric (HF) acid mixture for subsequent determination of elements*， 2020-10-31 Update
• GB/T 1040.2-2006 Plastics. Determination of tensile properties. Part 2: Test conditions for moulding and extrusion plastics
• GB/T 17037.1-1997 Injection moulding of test specimens of thermoplastic materails--Part 1: General principles and moulding of multipurpose and bar test specimens
• GB/T 19276.1 Determination of the ultimate aerobic biodegradability of plastic materials in an aqueous medium--Method by measuring the oxygen demand in a closed respirometer
• GB/T 19276.2 Determination of the ultimate aerobic biodegradability of plastic materials in an aqueous medium--Method by analysis of evolved carbon dioxide
• GB/T 19277.1 Determination of the ultimate aerobic biodegradability of plastic materials under conctrolled composting conditions.Method by analysis of evolved cabon dioxide.Part 1: General method
• GB/T 2035 Terms and definitions for plastics
• GB/T 23942 Chemical reagent.General rules for inductively coupled plasma atomic emission spectrometry
• GB/T 2547 Plastic resins-Sampling
• GB/T 2918 Standard environment for conditioning and testing of plastic specimens*， 2019-11-01 Update
• GB/T 3682-2000 Determination of the melt mass-flow rate (MFR) and the melt volume-flow rate (MVR) of thermoplastics
• GB/T 6040 General rules for infrared analysis*， 2019-06-04 Update
• GB/T 8170 Rules of rounding off for numerical values & expression and judgement of limiting values
• GB/T 9345.1 Plastics.Determination of ash.Part1:General methods
• ISO 10359-1 Water quality; determination of fluoride; part 1: electrochemical probe method for potable and lightly polluted water
• ISO 14853 Plastics - Determination of the ultimate anaerobic biodegradation of plastic materials in an aqueous system - Method by measurement of biogas production*， 2016-07-01 Update
• ISO 15985 Plastics - Determination of the ultimate anaerobic biodegradation under high-solids anaerobic-digestion conditions - Method by analysis of released biogas*， 2014-05-01 Update
• ISO 17294-2 Water quality — Application of inductively coupled plasma mass spectrometry (ICP-MS) — Part 2: Determination of selected elements including uranium isotopes*， 2023-10-18 Update
• SH/T 1541 Test method for appearance of thermoplastic granules
• UL 746A STANDARD FOR SAFETY Polymeric Materials – Short Term Property Evaluations*， 2023-03-17 Update

GB/T 29646-2013 history

• 2013 GB/T 29646-2013 Modified biodegradable polyester used for blown film