The national standard "Plastics — Thermomechanical Analysis (TMA) — Part 3: Determination of Penetration Temperature" is under the jurisdiction of TC15 (National Technical Committee for Standardization of Plastics), implemented by TC15SC4 (Subcommittee for General Methods and Products of the National Technical Committee for Standardization of Plastics), and the competent authority is the China Petroleum and Chemical Industry Federation.The main drafting units are Jiangsu Kingfa Sci & Tech Co., Ltd., Zhejiang NHU Special Materials Co., Ltd., Hebei Shanghua New Materials Co., Ltd., Funde Intelligent Technology (Xiamen) Co., Ltd., Mettler Toledo Technology (China) Co., Ltd., Nache Scientific Instruments Trading (Shanghai) Co., Ltd., Zhejiang Xinli New Materials Co., Ltd., Sinopec Beijing Research Institute of Chemical Industry Co., Ltd., Zhejiang Expo New Materials Co., Ltd., Dongguan Wisdom Tech Development Co., Ltd., China Blue Morning Chengdu Testing Technology Co., Ltd., Jis Plastic Materials Technology (Dongguan) Co., Ltd., Ganzhou Qilin New Materials Co., Ltd., Jilin Product Quality Supervision and Inspection Institute, and Ningbo Zhiwei New Materials Technology Co., Ltd.
