GB/T 4885-2009

Active

Lower confidence limit of reliability for complete sample from normal distribution

正态分布完全样本可靠度置信下限

Standard Type
GBT
ICS
03.120.30
CCS
A41
Status
Active
Issue Date
2009-10-15
Implementation
2010-02-01
Centralized Committee
国家标准委
Issuing Authority
中华人民共和国国家质量监督检验检疫总局、中国国家标准化管理委员会

Application Summary AI generated

This standard provides the statistical method for calculating the lower confidence limit of reliability when test data follows a normal distribution and all samples are fully observed (no censoring). It is applied in engineering fields such as aerospace, mechanical manufacturing, and electronics to determine the minimum guaranteed reliability of components or systems based on complete life test or performance test data. The standard ensures that reliability assessments meet a specified confidence level, supporting quality assurance and safety-critical design decisions.

Related Standards

GB/T 2828.1-2012 Sampling procedures for inspection by attributes — Part 1: Sampling schemes indexed by acceptance quality limit (AQL) for lot-by-lot inspection GB/T 19004-2011 Managing for the sustained success of an organization — Quality management approach GB/T 19000-2008/ISO 9000:2005 Quality management systems - Fundamentals and vocabulary GB/T 19011-2013 Guidelines for auditing management systems GB/T 2828.1-2003 Sampling procedures for inspection by attributes--Part 1: Sampling schemes indexed by acceptance quality limit(AQL) for lot-by-lot inspection GB/T 19022-2003 Measurement management systems--Requirements for measurement processes and measuring equipment GB/T 6379.2-2004 Accuracy(trueness and precision)of measurement methods and results--Part 2:Basic method for the determination of repeatability and reproducibility of a standard measurement method GB/T 6379.1-2004 Accuracy(trueness and precision)of measurement methods and results--Part 1:General principles and definitions
Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.