GB/T 45172-2024 Active

GB/T 45172-2024 Sensory analysis methodology—Guidelines for the measurement of the performance of a quantitative descriptive sensory panel

This document provides guidelines for evaluating the overall performance of sensory evaluation teams and the individual performance of evaluators.
This document is applicable to validating the training effectiveness of individual evaluators or the overall performance of established evaluation teams, as well as managing the performance of evaluation teams and individual evaluators in distinguishing different products, assessing the consistency among different evaluators within the same team, and monitoring and evaluating the repeatability of evaluators in attribute intensity scoring.
This document is not applicable to the following situations:
—— Evaluating the performance of teams using descriptive methods such as Consensus Profiles (CP), Free Choice Profiles (FCP), Free-Choice Preference Ranking Profiles (FP), and Time-Domain Dominance Testing (TDS), including not recording individual evaluator scores, not having a single attribute list common to all evaluators, or evaluators only identifying dominant attributes without measuring attribute intensity.
—— Evaluating the reproducibility of evaluation teams, including comparisons between evaluation teams and comparisons of multiple evaluations conducted by the same evaluation team under different conditions (such as at different times).
The methods listed in this document are not comprehensive. Team leaders (or sensory analysts) may use all or some of the methods provided in this document to continuously evaluate the performance of sensory teams or individual evaluators, or use other suitable methods.

Publish Date: 2024-12-31

GB/T 45159.3-2024 Active

GB/T 45159.3-2024 Mechanical vibration and shock—Characterization of the dynamic mechanical properties of visco-elastic materials—Part 3:Cantilever shear beam method

This document specifies the cantilever shear beam method for measuring the dynamic mechanical properties of elastic materials in vibration isolators in laboratories. The end fixation is used to prevent the rotation of the sample beam at the ends, thus avoiding clamping errors. This document is applicable to the measurement of impact and vibration systems in the frequency range of a few Hz to 20 kHz. This document is suitable for elastic materials commonly used in vibration isolator design to reduce: - a) the transmission of vibration and radiation noise (fluid-radiated noise, airborne noise, structure-radiated noise, etc.) from equipment, structures, or vehicles; - b) the impact of low-frequency vibration on the human body, or the damage to structures and equipment caused by severe low-frequency vibration. The measurement methods and data collection and analysis methods detailed in this document and ISO 18437-2 are used for: - the design of vibration isolators; - the selection of optimal elastic materials; - the theoretical calculation of the vibration transmission rate of vibration isolators; - the information needed for product development; - the product information provided by manufacturers and suppliers; - product quality control.

Publish Date: 2024-12-31

GB/T 45159.2-2024 Active

GB/T 45159.2-2024 Mechanical vibration and shock—Characterization of the dynamic mechanical properties of visco-elastic materials—Part 2:Resonance method

This document specifies the resonance method for measuring the dynamic mechanical properties of elastic materials in vibration isolators in laboratories.
This document is applicable to measuring impact and vibration systems in the frequency range of fractions of Hz to 20 kHz.
This document is suitable for resilient materials commonly used in vibration isolator design to reduce:
a) Vibration transmission and radiated noise (fluid-radiated noise, airborne noise, structure-radiated noise, etc.) from equipment, structures, or vehicles;
b) The impact of low-frequency vibrations on the human body or structural and equipment damage caused by severe low-frequency vibrations.
The measurement methods and data collection and analysis methods detailed in this document and ISO 18437-3 are used for:
—— Vibration isolator design;
—— Selecting the optimal resilient materials;
—— Theoretical calculation of vibration transmission rates in vibration isolators;
—— Information required for product development;
—— Product information provided by manufacturers and suppliers;
—— Product quality control.

Publish Date: 2024-12-31

GB/T 45155-2024 Active

GB/T 45155-2024 Quality management—Guidance to understand,evaluate and improve organizational quality culture

This document provides guidance for evaluating, developing, and improving an organization's quality culture, with the aim of helping the organization achieve sustainable success. The document considers basic concepts and quality management principles, with a particular focus on active participation of all employees and leadership roles.
This document provides general guidelines that are applicable to organizations of different sizes, industries, locations, maturity levels, or those offering different products and services.
Note: This document provides an example tool for evaluating an organization's quality culture through self-assessment, in order to determine the maturity of the quality culture and its potential for improvement.

Publish Date: 2024-12-31

GB/T 45148-2024 Active

GB/T 45148-2024 Basic requirements for resources and technology of digital culture center

This document stipulates the basic requirements for digital resources, technical platforms, and data management in the construction and service of digital cultural centers.
This document applies to the construction and maintenance of digital cultural centers at the county level and above. Township (district) and village (community) grassroots comprehensive cultural service centers may refer to and use it for reference.

Publish Date: 2024-12-31

GB/T 45122-2024 Active

GB/T 45122-2024 Guidelines for age-friendly accessible design of consumer products

This document presents the characteristics of elderly users and design considerations for elderly-friendly design of consumer products, based on the laws of age-related decline, providing technical guidance for meeting the special needs of elderly user groups.
This document is applicable to the design of consumer products targeting elderly users, including but not limited to elderly people, and can be used as a reference for the design of elderly-specific products.
Note: Elderly-specific products refer to products designed solely for elderly users.

Publish Date: 2024-12-31

GB/T 45119-2024 Active

GB/T 45119-2024 Technical requirement for insulation monitoring of low voltage power system in power plants and substations

This document specifies the basic requirements, monitoring requirements, installation acceptance, and operation and maintenance requirements for insulation monitoring of low-voltage power systems in power plants and substations.
This document is applicable to the design, selection, installation, and use of insulation monitoring systems for low-voltage AC/DC power systems in power plants, substations, converter stations, and other power engineering projects.

Publish Date: 2024-12-31

GB/T 45116-2024 Active

GB/T 45116-2024 Critical current measurement—DC critical current of REBCO composite superconductors

This document describes the measurement method for the direct-current critical current of RE-Ba-Cu-O (REBCO, RE = rare earth) composite superconductors in short straight strips, and provides the allowable deviations and other specific limitations in the usual measurement.
This document is applicable to samples with a length of no more than 300 mm and a rectangular cross-sectional area of 0.03 mm 2 to 7.2 mm 2, equivalent to a width of 1.0 mm to 12.0 mm and a thickness of 0.03 mm to 0.6 mm of composite superconductors. The Ic of the composite superconductors in the standard measurement environment is no more than 300 A, and the n-value is greater than 5.
Note: The standard measurement environment refers to the process of measuring the sample immersed in liquid nitrogen without an external magnetic field.

Publish Date: 2024-12-31

GB/T 45063-2024 Active

GB/T 45063-2024 Footwear—Chemical tests—General principles on the preparation of samples

This document establishes the sample preparation procedures for chemical testing of footwear and footwear components, and further describes the methods of labeling samples.
The sample preparation procedures specified in this document are designed to allow multiple chemical tests to be conducted on footwear simultaneously.
This document applies to all types of footwear and footwear components.

Publish Date: 2024-12-31

GB/T 45062-2024 Active

GB/T 45062-2024 Guide for inter-calibration of meteorological satellite infrared channel

This document provides guidance and recommended reference thresholds for the cross-calibration of infrared channels on meteorological satellites, including satellite data, processing procedures, preparation of matching samples, data conversion and screening, cross-calibration or evaluation, and other aspects.
This document is applicable to the cross-calibration of infrared channels on meteorological satellite channel-type optical remote sensors as the target remote sensors.

Publish Date: 2024-12-31

GB/T 45022-2024 Active

GB/T 45022-2024 Railway applications—Converter on board rolling stock—Charger

This document specifies the usage conditions, technical requirements, inspection rules, marking, packaging, transportation, and storage of locomotive and vehicle chargers, and describes the corresponding test methods.
This document is applicable to chargers installed on railway locomotives, EMUs, passenger cars, urban (suburban) rail vehicles, and urban rail transit vehicles.

Publish Date: 2024-12-31

GB/T 44985.1-2024 Active

GB/T 44985.1-2024 General technical requirements for agricultural internet of things—Part 1:Field planting

This document establishes the overall architecture of the Internet of Things (IoT) for field-cultivated agriculture, specifies the general requirements for the IoT in field-cultivated agriculture, and sets forth technical requirements such as sensing and control, transmission, application, and security.
This document is applicable to the planning, design, system development, operation and maintenance management of the IoT system for field-cultivated plants, as well as the production, testing, and system integration and application of IoT terminals for field-cultivated plants.

Publish Date: 2024-12-31