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**Standard GB 39800.3-2020 Specifications for the Provision of Personal Protective Equipment – Part 3: Metallurgy and Non-ferrous Metals; GB 39800.2-2020 Specifications for the Provision of Personal Protective Equipment – Part 2: Petroleum, Chemicals, and Natural Gas; GB 39800.1-2020 Specifications for the Provision of Personal Protective Equipment – Part 1: General Provisions; GB 39800.4-2020 Specifications for the Provision of Personal Protective Equipment – Part 4: Non-coal Mines. Standard GB 38600-2019 Basic Specifications for Service Safety in Elderly Care Institutions. Local standards: Beijing DB11/T 527-2021 Specifications for the Safe Management of Substations; DB11/T 1322.91-2021 Technical Specifications for the Evaluation of Work Safety Levels – Part 91: Operators of Integrated Utility Tunnels; DB11/T 1589-2021 Technical Specifications for the Assessment of Meteorological Disaster Risks – General Provisions; DB11/T 1589.2-2021 Technical Specifications for the Assessment of Meteorological Disaster Risks – Part 2: Strong Winds; DB11/T 1589.3-2021 Technical Specifications for the Assessment of Meteorological Disaster Risks – Part 3: Hail; DB11/T 1589.4-2021 Technical Specifications for the Assessment of Meteorological Disaster Risks – Part 4: Freezing; DB11/T 1589.5-2021 Technical Specifications for the Assessment of Meteorological Disaster Risks – Part 5: Lightning. Kunming DB 5301/T 63-2021 Specifications for the Management of Key Fire Safety Units. Qinghai DB63/T 1969-2021 Technical Specifications for the Assessment of Losses Caused by Grassland Fires