Standards

GB/T 44985.4-2024 Active

GB/T 44985.4-2024 General technical requirements for agricultural internet of things—Part 4:Livestock and poultry breeding

This document establishes the overall architecture of the agricultural Internet of Things for livestock and poultry farming, stipulates the general requirements for the Internet of Things in livestock and poultry farming, and sets technical requirements for sensing and control, transmission, application, and security.
This document is applicable to environmental monitoring in livestock and poultry farming, sensing data analysis and decision-making, the construction of Internet of Things systems, and the testing, development, and application of related equipment.

Publish Date: 2024-12-31

GB/T 44980-2024 Active

GB/T 44980-2024 Frozen shrimp paste

This document specifies the requirements for raw materials, processing water, sensory evaluation, physical and chemical properties, and net content of frozen shrimp paste, describes the corresponding testing methods, and also stipulates the inspection rules, labeling, packaging, transportation, and storage.
This document is applicable to the processing and sale of frozen shrimp paste.

Publish Date: 2024-12-31

GB/T 4130.2-2024 Active

GB/T 4130.2-2024 Acoustics—Calibration of hydrophones—Part 2:Procedures for low frequency pressure calibration

This document specifies the calibration method for the low-frequency sound pressure field of hydrophones in the frequency range of 0.01 Hz to several thousand Hz. The calibration frequency range depends on the calibration method used.

Publish Date: 2024-12-31

GB/T 30844.2-2024 Active

GB/T 30844.2-2024 Variable-frequency drive of 1 kV and below—Part 2:Test methods

This document describes the test methods for general-purpose variable-frequency speed-control equipment (hereinafter referred to as "speed-control equipment") with a rated input voltage of 1 kV or less.
This document is applicable to the inspection and acceptance of speed-control equipment with a rated input voltage of AC 1 kV or DC 1.5 kV and below, a rated input frequency of 50 Hz or 60 Hz, an output voltage not exceeding 1 kV, and an output frequency less than 600 Hz.
Note: Speed-control equipment with an AC rated input voltage of 1 140 V or an output frequency greater than 600 Hz is also typically tested according to this document. The relevant performance and other requirements are determined through consultation between the manufacturer and the user.

Publish Date: 2024-12-31

GB/T 30844.1-2024 Active

GB/T 30844.1-2024 Variable-frequency drive of 1 kV and below—Part 1:Technical conditions

This document specifies the rated values, usage conditions, technical requirements, test item requirements, and marking, packaging, transportation, and storage of general-purpose frequency conversion speed control equipment (hereinafter referred to as "speed control equipment") with a rated voltage of 1 kV or lower. This document applies to the design, production, and installation of speed control equipment with a rated input voltage of AC 1 kV and DC 1.5 kV or lower, a rated input frequency of 50 Hz or 60 Hz, an output voltage not exceeding 1 kV, and an output frequency less than 600 Hz. Note: Speed control equipment with an AC rated input voltage of 1,140 V or an output frequency greater than 600 Hz is also typically subject to this document. The relevant performance and other requirements shall be determined through consultation between the manufacturer and the user.

Publish Date: 2024-12-31

GB/T 21551.4-2024 Pending

GB/T 21551.4-2024 Antimicrobial and cleaning function of household and similar electrical appliances—Part 4:Particular requirements for refrigerator

This document specifies the hygiene and safety requirements, as well as the functional requirements, for household refrigerators, refrigerator-freezers, and freezers with antibacterial, disinfectant, and purification functions, and the requirements for marking. It also describes the corresponding test methods.
This document applies to the production, inspection, and sale of household refrigerators, refrigerator-freezers, and freezers (hereinafter referred to as "refrigerators") with one or more functions such as antibacterial, anti-mold, disinfection, purification, or odor removal.

Publish Date: 2024-12-31

GB/T 21551.2-2024 Pending

GB/T 21551.2-2024 Antimicrobial and cleaning function of household and similar electrical appliances—Part 2:Particular requirements for material

This document specifies the technical requirements for the antibacterial, antifungal, anti-allergenic, and antiviral performance of materials and components used in household appliances and similar products (hereinafter referred to as "household appliances"), and describes the corresponding test methods.
This document is applicable to the evaluation of the antibacterial, antifungal, anti-allergenic, and antiviral performance of household appliances that use antibacterial, antifungal, anti-allergenic, and antiviral materials and related components.

Publish Date: 2024-12-31

GB/T 21478-2024 Active

GB/T 21478-2024 Ships and marine technology—Marine environment protection—Vocabulary relating to oil spill response

This document defines the terms and definitions of oil spills and their control. It defines the standard terms related to oil spill treatment in large-scale oil spill cleanup activities, including monitoring and evaluation, containment, recovery, the use of dispersants, on-site burning, shoreline cleanup, and disposal.
This document is applicable to design, scientific research, production, and inspection related to the treatment of marine oil spills from ships.

Publish Date: 2024-12-31

GB/T 18892-2024 Active

GB/T 18892-2024 Environmental protect requirements of copying machines—Energy saving requirements for copiers and multi-function devices

This document specifies the typical energy consumption technical requirements for copiers and multifunctional all-in-one printers, and describes the corresponding test methods.
This document is applicable to the design and manufacture of copiers and multifunctional all-in-one printers with a copying format of A3 and below.

Publish Date: 2024-12-31

GB/Z 45113-2024 Active

GB/Z 45113-2024 Nanotechnologies—Test of volatile components in single-wall carbon nanotube samples—Evolved gas analysis/gas chromatograph-mass spectrometry

This document describes a method for characterizing the outgassing gases in single-walled carbon nanotube samples using outgassing gas analysis/gas chromatography-mass spectrometry.
Note: Due to the effects of heating and the possible presence of catalysts, the qualitative and quantitative results of the emitted gases may differ from the gases contained in the samples.

Publish Date: 2024-12-31

GB/T 45179-2024 Active

GB/T 45179-2024 Man-made fibre—Determination of friction factors of staple fibres—Capstan method

This document describes the method of determining the friction coefficient of short fibers using the winch method.
This document is applicable to short fibers of chemical fibers with a cut length of ≥30 mm.

Publish Date: 2024-12-31

GB/T 45164-2024 Active

GB/T 45164-2024 Classification and designation of defects in investment castings

This document provides the coding rules, coding structure, defect classification, defect names, and defect characteristic descriptions for casting defects in investment casting.
This document is applicable to the classification and naming of common defects in castings produced using the investment casting process.

Publish Date: 2024-12-31