GB/T 13354-2025 "Determination of Adhesive density" is a method standard for determining Adhesive density. The standard provides five test methods: Density Cup method, pressure cup method, oscillating tube method, Lee's bottle method and buoyancy method, which are suitable for Adhesive in various forms such as liquid, paste and solid (including powder). When testing according to the standard, the core testing equipment includes Balance (accuracy 0.001g), Density Cup (such as 37mL, 50mL, 100mL metal cups), thermostatic equipment (temperature control accuracy +/- 0.5 ° C), and digital Density Meter specially used for oscillating tube method. This instrument combination can handle the testing needs of samples in different states, providing a comprehensive measurement solution for Adhesive product quality control.