Standards

T/CNCA 036-2022 Active

T/CNCA 036-2022 General specification for clamping rail passenger device for inclined shaft

This document specifies the model specifications, technical requirements, test methods, inspection rules, and marking, packaging, transportation, and storage of the cable-rail passenger transport device used in inclined mine shafts (hereinafter referred to as the "passenger transport device"). This document is applicable to cable-rail passenger transport devices used in inclined mine shafts.

Publish Date: 2022-12-30

T/CNCA 035-2022 Active

T/CNCA 035-2022 General specification for three-telescopic legs shield powered support in coal mine

This document specifies the product models and structures, requirements, test methods, inspection rules, judgment criteria, and marking, packaging, transportation, and storage of three-extension shield hydraulic supports for coal mines (hereinafter referred to as "supports"). This document is applicable to three-extension shield hydraulic supports used in coal mine underground workings.

Publish Date: 2022-12-30

T/CNCA 034-2022 Active

T/CNCA 034-2022 Technical requirements for aerodynamic monorail cranes

This document specifies the product models and structural diagrams, technical requirements, test methods, inspection rules, and markings, packaging, transportation, and storage of pneumatic monorail cranes (hereinafter referred to as monorail cranes). This document is applicable to monorail cranes.

Publish Date: 2022-12-30

T/CNCA 033-2022 Active

T/CNCA 033-2022 General technical specification for chain arm roof cutting machine

This document specifies the product models, structure, and parameters, requirements, test methods, inspection rules, and markings, as well as packaging, transportation, and storage of mining chain arm roof cutters (hereinafter referred to as roof cutters). This document is applicable to mining chain arm roof cutters.

Publish Date: 2022-12-30

T/CNCA 032-2022 Active

T/CNCA 032-2022 Technical requirements for hazard assessment of natural disasters in opencast coal mines

This document specifies the terms and definitions, basic requirements, technical requirements for disaster risk assessment, and evaluation reports for the assessment of the disaster risk caused by natural disasters such as earthquakes, geological events, and floods in open-pit coal mines. This document is applicable to the assessment of the disaster risk caused by natural disasters such as earthquakes, geological events, and floods in open-pit coal mines.

Publish Date: 2022-12-30

T/CNCA 031-2022 Active

T/CNCA 031-2022 Technical requirements for investigation of natural disaster bearing body in opencast coal mine

This document stipulates the basic requirements, investigation content, and technical requirements for the investigation of natural disaster-prone targets such as earthquakes, geological disasters, and floods in open-pit coal mines. This document is applicable to the investigation of natural disaster-prone targets in open-pit coal mines, including earthquakes, geological disasters, and floods.

Publish Date: 2022-12-30

T/CCPITCSC 116-2022 Active

T/CCPITCSC 116-2022 Competency requirements for home education instructors

This document stipulates the grading and basis of the competency requirements for family education instructors, the basic requirements, the academic qualifications and work experience requirements, and the competency requirements.
This document is applicable to the competency training and evaluation of family education instructors.

Publish Date: 2022-12-30

T/SJD 001-2022 Active

T/SJD 001-2022 Metal-plated jewelry and jewelry accessories quality testing techniques and methods

Scope: This document specifies the technical methods for inspecting the craftsmanship quality of precious metal-inlaid jewelry and accessories, and classifies them into two categories: adult jewelry and accessories, and children's jewelry and accessories according to the wearer group. The inspection parts are classified and corresponding inspection techniques are provided for each category. The appearance requirements are also specified in the inspection methods. This document applies to precious metal-inlaid jewelry and accessories imported and exported by the jewelry industry, as well as those designed, produced, and sold domestically. It also applies to precious metal-inlaid jewelry and accessories repaired domestically. Other metal jewelry and accessories can also refer to and implement it accordingly. Main technical contents: Inspection parts of precious metal-inlaid jewelry and accessories; Classification of quality inspection items for precious metal-inlaid jewelry and accessories; Main quality inspection items for precious metal-inlaid jewelry and accessories; Quality inspection techniques for precious metal-inlaid jewelry and accessories; Pass/fail standards for precious metal-inlaid jewelry and accessories; Environmental protection inspection content and requirements; Labeling content and requirements for product identification of precious metal-inlaid jewelry and accessories; Technical requirements for inspection of imported and exported precious metal-inlaid jewelry and accessories.

Publish Date: 2022-12-30

T/HBTL 001-2023 Active

T/HBTL 001-2023 Anticorrosive titanium dioxide

Scope: This standard specifies the technical requirements, test methods, inspection rules, determination of inspection results, and marking, packaging, transportation, and storage of anticorrosive titanium dioxide. This standard applies to anticorrosive titanium dioxide products produced by the sulfuric acid process. It is mainly used in various anticorrosive fields such as ships, containers, and metal products. Main technical content: 3 Terms and definitions: This document does not involve terms and definitions. 4 Technical requirements: 4.1 Appearance: White or light yellow powder. 4.2 Particle morphology: Single-dispersed spherical or nearly spherical. 4.3 Technical requirements: Technical requirements shall comply with the requirements in Table 1.

Publish Date: 2022-12-30

T/HBTL 002-2023 Active

T/HBTL 002-2023 Fire-resistant Titanium Dioxide

Main Technical Content: 1. Scope This standard specifies the technical requirements, test methods, inspection rules, determination of test results, and marking, packaging, transportation, and storage for fire-resistant titanium dioxide. It applies to fire-resistant titanium dioxide products produced by the sulfuric acid process. It is primarily used in expanding flame-retardant systems to enhance the fire-resistance and flame-retardant properties of materials such as coatings and fibers. 2. Normative Reference Documents The following documents are essential for the application of this standard. For referenced documents with specified dates, only the versions on the specified dates apply to this document. For referenced documents without specified dates, the latest versions (including all amendment sheets) apply to this document. - GB/T 191 *Graphical Symbols for Packaging and Transportation* - GB/T 1706 *Titanium Dioxide Pigments* - GB/T 3049 *General Method for Determining Iron Content in Industrial Chemical Products: Phloroglucinol Spectrophotometry* - GB/T 6678 *General Principles for Sampling and Transportation of Chemical Products* - GB/T 6682 *Specifications and Test Methods for Water Used in Analytical Laboratories* - GB/T 8170 *Rules for Rounding and Expression and Judgment of Limit Values* - GB 14907 *Fire-Resistant Coatings for Steel Structures* - GB/T 19591 *Nano Titanium Dioxide* - GB/T 23842 *General Method for Determining Silicon Content in Inorganic Chemical Products: Reduced Silicon Molybdate Spectrophotometry* - HG/T 3696.1 *Preparation of Standard Solutions, Preparations, and Products for Chemical Analysis of Inorganic Chemical Products – Part 1: Preparation of Standard Titrant Solutions* - HG/T 3696.2 *Preparation of Standard Solutions, Preparations, and Products for Chemical Analysis of Inorganic Chemical Products – Part 2: Preparation of Impurity Standard Solutions* - HG/T 3696.3 *Preparation of Standard Solutions

Publish Date: 2022-12-30

T/CGIA 005-2022 Active

T/CGIA 005-2022 Evaluation of Graphene Material Development and Manufacturing Capabilities

Scope: This standard establishes a classification and grading system for enterprises' development and manufacturing capabilities in graphene materials, and provides evaluation indicators and assessment methods. For start-up enterprises, the focus is on evaluating their development capabilities; for scale-up enterprises, both development and manufacturing capabilities are assessed. This standard applies to: (1) Third-party evaluations, which can serve as a basis for downstream application enterprises to select "qualified graphene material partners" and for graphene enterprises to demonstrate their capabilities in the industry. (2) Self-evaluations by graphene material manufacturing and application enterprises, which guide their development and enable continuous improvement. Main technical content: Due to its excellent optical, electrical, mechanical, and thermal properties, graphene has applications in energy storage (lithium-ion batteries, supercapacitors, fuel cells, etc.), thermal management (conductive heat dissipation materials), textiles (antibacterial and antiviral, infrared, UV protection), and sensors (biological and chemical sensors, physical sensors). Since the "Nobel Prize" in 2010, the graphene industry has developed rapidly in China. Patent applications and research have led the world, and the number of enterprises has steadily increased. According to incomplete statistics, there were 38,000 graphene-related enterprises in China by the end of 2022. Leading enterprises in the graphene field are emerging, with some benefiting from early industry involvement, strong technical reserves, and thorough market exploration, achieving rapid development and forming "scale-up" enterprises with balanced technological and production capabilities. Meanwhile, recent in-depth research in applications such as power batteries, thermal management, and antibacterial fabrics has led to the emergence of "start-up" enterprises focused on application-driven goals but lacking

Publish Date: 2022-12-30

T/CGIA 035-2022 Active

T/CGIA 035-2022

Scope: This standard is based on the FMEA analysis method, sorts out the preparation process of graphene thermal conductive films, analyzes the technical requirements of thermal conductive films for graphene materials, and explains the impact of various technical indicators of graphene materials on the film preparation process and film performance. It also provides optimization practice cases of film preparation. This standard is applicable for enterprises or scientific research institutions to provide reference when establishing DFMEA for graphene materials and PFMEA for graphene thermal conductive films; Main technical content: With the widespread application of 5G technology (fifth generation mobile communication technology) in industrial and consumer electronics fields, and the increasing integration and miniaturization of electronic components, the performance of core computing components continues to improve significantly. The well-known 10℃ rule points out that the reliability of electronic devices is closely related to temperature. When the temperature is 70℃~80℃, its reliability decreases by 50% for every 10℃ increase. Therefore, heat dissipation technology has become an important aspect that cannot be ignored in the reliability design of electronic devices, and the development of membrane materials with higher thermal conductivity has become an urgent need in the electronics industry. Single-layer graphene is the material with the highest theoretical thermal conductivity discovered so far. Compared with traditional artificial graphite thermal conductive films, graphene-based thermal conductive films have the advantages of high theoretical thermal conductivity, adjustable film thickness, and flexibility and bend resistance. Importantly, graphene materials are independently controllable in terms of resources and have become one of the popular materials for thermal conductivity in the current market. Graphene thermal conductive film enterprises are emergi

Publish Date: 2022-12-30