Standards

GB 45184-2024 Active

GB 45184-2024 Optometry products—Safety technical specifications of components

This document defines the terms and definitions of ophthalmic products components, stipulates the safety technical requirements, and describes the corresponding test methods.
This document is applicable to ophthalmic products components.

Publish Date: 2024-12-31

GB/Z 44938.2-2024 Active

GB/Z 44938.2-2024 Electrical safety of machinery—Part 2:Examples of application for safety-related sensors used to protect persons

This document provides a user guide for the application of GB/Z 44938.1—2024.
The following examples are provided:
—— Applications related to SRS/SRSS;
—— Using SRS/SRSS information from the perspective of the application;
—— Integrating SRS into SRSS for specific applications; and
—— Appropriate usage instructions for a given application.

Publish Date: 2024-12-31

GB/T 6075.6-2024 Active

GB/T 6075.6-2024 Mechanical vibration—Evaluation of machine vibration by measurements on non-rotating parts—Part 6:Reciprocating machines with power ratings above 100 kW

This document evaluates the mechanical vibration of reciprocating machines by measuring the vibration of non-rotating and non-reciprocating components of the entire machine. The vibration of shafts, including torsional vibration, is not within the scope of this document.
This document is applicable to rigid or elastically mounted reciprocating piston machines with a rated power greater than 100 kW, such as ship propulsion engines, marine auxiliary engines, diesel generators, reciprocating pumps, and locomotive diesel engines.
This document is generally used for operational monitoring and acceptance tests, and also for evaluating whether the vibration of the machine has a negative impact on the instruments and equipment directly installed on the machine.

Publish Date: 2024-12-31

GB/T 45205-2024 Active

GB/T 45205-2024 Specification for fair competition compliance management for undertakings

This document stipulates the requirements for operators to conduct fair competition compliance management, including the business environment, leadership role, planning, support, management operation, evaluation and improvement, as well as related requirements for fair competition compliance management overseas.
This document applies to all types of operators conducting fair competition compliance management activities.

Publish Date: 2024-12-31

GB/T 45201-2024 Active

GB/T 45201-2024 Specification for social E-commerce platform management

This document outlines the various parties involved in social e-commerce and their relationships, stipulates the management requirements for social e-commerce platform operators, promoters, sellers, electronic payment service providers, logistics service providers, consumer services, and after-sales and safety, and describes the corresponding verification methods.
This document is applicable to the management of business activities on social e-commerce platforms for product sales, and related entities within the platform. Other social e-commerce business activities may refer to and use this document for guidance.

Publish Date: 2024-12-31

GB/T 45181-2024 Active

GB/T 45181-2024 Security-related misbehavior detection mechanism for connected vehicles

This document provides a proposal for a detection mechanism of abnormal network security behavior in the Internet of Vehicles (IoV). The mechanism includes the following steps:
a) Data collection: It details the types of data and information obtained from different sources for abnormal behavior detection, including vehicles, infrastructure, original equipment manufacturers (OEMs), and suppliers. The methods and procedures of data collection are beyond the scope of this document.
b) Detection: Using the collected data to monitor abnormal behavior.
This document is applicable to the IoV and aims to assist designers and security solution providers in detecting abnormal network security behaviors. The methods and procedures of data acquisition and the use of notification modules are beyond the scope of this document.

Publish Date: 2024-12-31

GB/T 45159.1-2024 Active

GB/T 45159.1-2024 Mechanical vibration and shock—Characterization of the dynamic mechanical properties of visco-elastic materials—Part 1:Principles and guidelines

This document establishes the basic principles for laboratory measurement methods and data collection and analysis methods of the dynamic mechanical properties (i.e., elastic modulus, shear modulus, bulk modulus, loss factor, and Poisson's ratio) of common isotropic viscoelastic materials for vibration isolators specified in GB/T 45159.2~GB/T 45159.5. This document also provides guidance for the rational selection of various components. This document is applicable to isotropic resilient materials commonly used in vibration isolator design to reduce: - The transmission of vibrations in the audible frequency range to structures and the resulting fluid-induced noise (airborne noise, structure-radiated noise, etc.); - The impact of low-frequency vibrations on the human body, or the damage to structures and equipment caused by severe low-frequency vibrations; - The energy transmission of shocks and noise.

Publish Date: 2024-12-31

GB/T 45101-2024 Active

GB/T 45101-2024 Diagnostic techniques for animal anthrax

This document describes the laboratory diagnostic methods for animal anthrax, including clinical diagnosis, staining microscopy, isolation and identification, γ phage lysis test, penicillin inhibition test, PCR, Real-time PCR, and ring precipitation test.
This document is applicable to the diagnosis, detection, quarantine, monitoring, and epidemiological investigation of animal anthrax.

Publish Date: 2024-12-31

GB/T 44985.3-2024 Active

GB/T 44985.3-2024 General technical requirements for agricultural internet of things—Part 3:Aquaculture

This document establishes the overall architecture of the Internet of Things for aquaculture and specifies the technical requirements for information sensing, environmental regulation, information transmission, information application, security, and adaptability in the aquaculture Internet of Things.
This document is applicable to the construction of the Internet of Things for aquaculture, including offshore marine aquaculture, pond aquaculture, and intensive factory farming, as well as the testing, development, and application of related equipment.

Publish Date: 2024-12-31

GB/T 44931-2024 Active

GB/T 44931-2024 Nanotechnologies—Generation of metal nanoparticles for inhalation toxicity testing—Evaporation-condensation method

This document specifies the use of evaporative condensation to prepare aerosols of gold, silver, and other metal nanoparticles for inhalation toxicity tests, and provides related requirements and recommendations (see Appendix A).

Publish Date: 2024-12-31

GB/T 41850.9-2024 Active

GB/T 41850.9-2024 Mechanical vibration—Measurement and evaluation of machine vibration—Part 9:Gear units

This document specifies the specific requirements for measuring and classifying mechanical vibration of individual enclosed gearboxes or gearboxes with speed-increasing or speed-reducing gears. It provides methods for measuring shell vibration and shaft vibration, as well as the types of instruments, measurement methods, and test procedures used to determine vibration values. It also includes vibration classifications for acceptance testing.
This document does not include the measurement of torsional vibration.
This document applies to acceptance testing of gearboxes operating within their design speed, load, temperature, and lubrication ranges at the manufacturer's facility. Upon agreement between the manufacturer and the customer and/or operator, this document can also be used to guide on-site acceptance testing and routine operation measurements.
This document applies to gearboxes with rated power ranging from 10 kW to 100 MW and rated speeds from 30 r/min to 12,000 r/min (0.5 Hz to 200 Hz).
This document does not apply to special or auxiliary drive systems, such as integrated gear-driven compressors, pumps, turbines, or gear clutches used between combined-cycle turbine generators and power output gears.
The evaluation criteria provided in this document can be applied to the vibration of the main input and output shaft bearings of gearboxes and the internal shaft bearings. These criteria can be used to a limited extent to evaluate the condition of the gears. This document does not include professional techniques for evaluating the condition of the gears.
This document establishes provisions for on-site broadband vibration intensity evaluation under normal stable operating conditions for the following:
a) Structural vibration measured radially (i.e., laterally) at all main bearing seats or bases;
b) Structural vibration measured axially at thrust bearing seats;
c) Radial (i.e., lateral) vibra

Publish Date: 2024-12-31

GB/T 41850.1-2024 Active

GB/T 41850.1-2024 Mechanical vibration—Measurement and evaluation of machine vibration—Part 1:General guidelines

This document specifies the general conditions and procedures for measuring and evaluating machine vibration on the rotating, non-rotating, and non-reciprocating components of the entire machine. This document applies to the measurement of absolute radial shaft vibration and relative shaft vibration during radial clearance monitoring, but does not apply to axial shaft vibration. General evaluation criteria include two aspects: vibration magnitude and vibration change, which are used for operation monitoring and acceptance testing. The evaluation criteria primarily aim to ensure the reliable, safe, and long-term operation of the machine while minimizing adverse effects on related equipment. This document also provides guidelines for setting operational limits.
Note 1: Other parts of ISO 20816 contain evaluation criteria for different types of machines. Chapter 6 of this document provides guidelines for evaluation criteria.
Note 2: Since measurements are typically conducted on the machine shaft in most cases, the term "shaft vibration" is applied throughout ISO 20816. However, if other rotating components are found to be more suitable, the ISO 20816 series also applies to measurements on such rotating components, provided that the guidelines are followed.
ISO 20816 considers operation monitoring as vibration measurements conducted during normal machine operation. ISO 20816 permits the use of different measurement quantities and methods, provided that these measurement quantities and methods are clearly defined and their limitations are pointed out, so as to fully understand the interpretation of the measurements.
Evaluation criteria only relate to the vibration generated by the machine itself, and not to vibration externally transmitted to the machine.
This document does not consider torsional vibration.
Note 3: For torsional vibration, refer to ISO 3046-5, ISO 22266-1, or VDI 2039.

Publish Date: 2024-12-31