译：DB21/T 3085-2018 The detection method for residual methamide in plastic foam and its products using gas chromatography-mass spectrometry

译：DB2101/T 0007-2018 The quality control and acceptance standards for the construction of synthetic material sports ground surface layers

译：DB21/T 2836-2017 A method for the rapid on-site detection of polymer-impregnated water solution using adiabatic molding of polystyrene foam plastic

译：DB21/T 2839-2017 The test method for mineral filler content in polymer waterproof materials composite sheet (FS2) is as follows: The mineral filler content in the polymer waterproof materials composite sheet (FS2) is determined by using a laboratory instrument to measure the weight loss of the sample after burning. The mineral filler content is expressed as a percentage of the weight loss of the sample. Note: This method is only for reference and may not be applicable to all types of waterproof materials

译：DB21/T 2840-2017

译：DB21/T 2837-2017

译：DB21/T 2838-2017 The method for on-site testing of the core material thickness of polymer waterproof material composite sheet (FS2) is:

译：DB21/T 2815-2017 Small diameter polyethylene (PE) water supply pipe material

译：DB21/T 2814-2017 HRS high-level roof drainage pipe material