A41 数学 标准查询与下载

GB/T 3361-1982 数据的统计处理和解释 在成对观测值情形下两个均值的比较

本标准规定了成对观测值之差的总体均值与零或者其它预先指定的值相比较的方法。

Statistical interpretation of data--Comparison of two means in the case of paired observations

GB/T 3360-1982 数据的统计处理和解释 均值的估计和置信区间

本标准适用于对抽自正态总体的随机样本所作的一系列试验的基础上，在总体方差未知的情形下，估计该总体的均值；或者利用试验所得的数据计算出一个区间，使得这个区间以给定的概率包含总体均值。对于总体概率分布遵从正态分布的假定可以广泛地得到满足：在一定的试验条件下，所得试验结果的分布经常是正态分布或者近似正态分布。本标准假定，用来进行测定的个体，构成一个来自原总体的独立随机样本。

Statistical interpretation of data--Estimation of the mean--Confidence interval

GB 3239-1982 空气中声和噪声强弱的主观和客观表示法

Subjective and objective representation of the intensity of sound and noise in the air

GB 3240-1982 声学测量中的常用频率

Frequently used frequencies in acoustic measurements

GB 3238-1982 声学量的级及其基准值

The level of acoustic quantity and its reference value

ANSI X9 TR 54-2021 区块链风险评估框架

Blockchain Risk Assessment Framework

JIS Z 8405:2021 多个实验室间比较的方法测定熟练度的统计方法

Statistical methods for use in proficiency testing by interlaboratory comparison

PNS ISO 14050:2021 环境管理.词汇

Environmental management - Vocabulary

ANSI X9.6-2020 统一安全鉴定程序委员会

Committee on Uniform Security Identification Procedures Securities Identification CUSIP

BS ISO 22514-3:2020 过程管理的统计方法. 能力和性能. 离散部件测量数据的机械性能研究

Statistical methods in process management. Capability and performance. Machine performance studies for measured data on discrete parts

T/CIRA 4-2019 辐射加工吸收剂量计算方法的选择和使用

本标准主要描述了用于计算吸收剂量的五种数学方法： 第4 章节对五种方法进行了概要性的描述： 第5 章节介绍了五种方法的优点和不足，以便使用者进行对比并选择合适的方法； 第6 章节介绍了计算结果确认和验证的要求； 第7 章节介绍了计算结果的不确定度，包括影响计算结果的因素； 第8 章节介绍了文件和记录的要求，包括一般要求、文件要求等； 附录A 提供了蒙特卡罗方法、点核法和经验方法的建立和使用的要求，并提供了方法的应用实例，对使用者具有重要参考意义。

Selection and use of mathmatical methods for calculating absorbed dose in radiation processing applications

BS ISO 28593:2017 按属性验收取样规程.基于控制出厂质量信用原则的验收零取样系统

Acceptance sampling procedures by attributes. Accept-zero sampling system based on credit principle for controlling outgoing quality

BS ISO 28594:2017 组合接受零取样系统和产品验收过程控制程序

Combined accept-zero sampling systems and process control procedures for product acceptance

BS ISO 28590:2017*BS 6001-0:2017 用属性检验的抽样程序.介绍属性检验的抽样程序用ISO 2859系列标准

Sampling procedures for inspection by attributes. Introduction to the ISO 2859 series of standards for sampling for inspection by attributes

BS ISO 28597:2017 按属性进行验收抽样程序 每百万件不合格品的指定质量水平

Acceptance sampling procedures by attributes. Specified quality levels in nonconforming items per million

BS ISO 28598-2:2017 基于优先级分配原则（APP）的验收抽样程序 按属性进行验收抽样的协调单次抽样计划

Acceptance sampling procedures based on the allocation of priorities principle (APP). Coordinated single sampling plans for acceptance sampling by attributes

ISO 28598-1:2017 基于优先分配原则(APP)的验收取样规程.第1部分:APP法指南

This part of ISO 28598 provides guidelines specifying the organizational principles of acceptance sampling in situations where the contract or the legislation provides for successive inspection to be carried out by different parties: the supplier, the customer and/or a third party. These guidelines are designed for inspection of populations of any product supplied or delivered in discrete items in lots. They are applicable to — supplier inspection (final inspection, product certification upon supplier’s request), — customer inspection (incoming inspection, audit inspection, acceptance sampling), — third-party inspection (certification of product, inspection and supervision for observance of International Standard requirements, quality inspection carried out at the supplier, and/or customer, request), where the quality levels and the lot acceptability criteria are specified unilaterally by the supplier or contractually by the supplier and the customer. These guidelines are also applicable to situations when only one sampling inspection is actually needed. NOTE Single sampling APP plans by attributes are given in ISO 28598-2. The guidelines provided by this part of ISO 28598 may be applied in developing standards on acceptance sampling for standard inspection models, specific items or quality levels, as well as in developing contracts, specifications and instructions. In contractual use of the APP, the parties concerned should acknowledge in the contract that they approve of its principles (also by referring to the present guidelines). The parties may also provide for the use of the APP in disputes and arbitration.

Acceptance sampling procedures based on the allocation of priorities principle (APP) - Part 1: Guidelines for the APP approach

ISO 28594:2017 产品验收的组合接受零点抽样系统和过程控制规程

This International Standard provides a set of accept-zero sampling systems and procedures for planning and conducting inspections to assess quality and conformance to specified requirements. In addition, this International Standard provides requirements for alternative acceptance methods proposed by the supplier. Such alternative methods would be based upon establishing and implementing an internal prevention-based quality management system as a means of ensuring that all products conform to requirements specified by the contract and associated specifications and standards. This International Standard, when cited in contract, is applicable to the supplier and extends to subcontractors or vendors. The quality plans are to be applied as specified in the contract documents, and deliverables may be submitted for acceptance if the requirements of this International Standard have been met. Sampling systems and procedures in this International Standard are applicable, when appropriate, to assess conformance to requirements of the following: a) end items; c) operations or services; e) supplies in storage; b) components or basic materials; d) materials in process; f) maintenance operations; g) data or records; h) administrative procedures. NOTE Use of the word “product” throughout this International Standard also refers to services and other deliverables. The sampling systems and procedures of this International Standard are not intended for use with destructive tests or where product screening is not feasible or desirable. In such cases, the sampling systems to be used will be specified in the contract or product specifications.

Combined accept-zero sampling systems and process control procedures for product acceptance

ISO 28593:2017 按属性验收取样规程.基于控制出厂质量信用原则的验收零取样系统

1.1 This International Standard specifies a system of single sampling schemes for lot-by-lot inspection by attributes. All the sampling plans of the present system are of accept-zero form, i.e. no lot is accepted if the sample from it contains one or more nonconforming items. The schemes depend on a suitablydefined average outgoing quality limit (AOQL), the value of which is chosen by the user; no restrictions are placed on the choice of the value of the AOQL or on the sizes of successive lots in the series. The methodology ensures that the overall average quality reaching the customer or market-place will not exceed the AOQL in the long run. 1.2 The schemes are intended to induce a supplier, through the economic and psychological pressure of lot non-acceptance and consequent loss of accumulated credit, to attempt to maintain a nonconformityfree process, while assuring, by means of the lowest practicable sample sizes, that the long-term percentage of nonconforming items delivered to the customer or market-place does not exceed the AOQL. This objective is achieved by a progressive reduction in the sample size in response to good quality history. 1.3 The schemes are designed to be applied to a series of lots from each supplier. The credit principle provides: a) automatic protection to the customer if a deterioration in quality is detected, by means of a total loss of accumulated credit and reversion to a relatively large sample size whenever a nonconforming item is found, and 100 % inspection of 1) the first lot if it is not accepted, or 2) any non-accepted lot that immediately follows a non-accepted lot; b) an incentive to reduce sampling costs (by means of a progressive reduction in required sample size) if consistently good quality is achieved. 1.4 a) This International Standard is designed for use under the following conditions: where the inspection procedure is to be applied to a series of lots of discrete items that are intended to be identical, and which are all supplied by one producer using one production process (If there are different producers or production processes, this International Standard is intended to be applied to each one separately.); b) where one or more quality characteristics of these products are taken into consideration, which must all be classifiable as either conforming or nonconforming; c) where the inspection error involved in classifying the state of a product's quality characteristic(s) is negligible; d) where inspection is non-destructive. This International Standard can be suitable for regulatory purposes, as control of the expected quality of items reaching the market-place is achieved with the smallest possible sample sizes, and long-term control of the realized, or actual quality level in the market-place is achieved with certainty, regardless of how long or short individual suppliers' series may be. This International Standard can be used by  1  suppliers/producers, buyers/consumers and regulatory agencies to provide control of the expected quality of the totality of accepted product of each type from each source.

Acceptance sampling procedures by attributes - Accept-zero sampling system based on credit principle for controlling outgoing quality

ISO 28598-2:2017 基于优先分配原则的验收取样规程.第2部分:按属性验收取样用协调单个取样方案

This part of ISO 28598 provides attributes sampling procedures and single sampling plans for successive independent inspections of the same lot conducted by the supplier, customer and/or a third party. This part of ISO 28598 addresses: — supplier inspection (final inspection, product certification upon supplier's request); — customer inspection (incoming inspection, surveillance, acceptance sampling); — third party inspection. This part of ISO 28598 may also be applicable when only one inspection is needed. A catalogue of single sampling plans is given, indexed by the normative quality limits (NQLs). This part of ISO 28598 provides sampling procedures for: — finished product; — components and discrete items; — operations; — discrete items and the processes that produce them; — data and records. Attributes sampling procedures are provided for inspection of an isolated lot or a continuing series of lots of a discrete product. These procedures are applicable when a normative quality limit (NQL) is given and expressed in terms of percent nonconforming or nonconformities per 100 items. This part of ISO 28598 provides a co-ordinated system of supplier, customer and third party acceptance sampling procedures. It is also applicable to the case where a supplier individually, or on agreement with a customer, in a contract, specifies a lot quality criterion expressed in terms of an NQL. In either case, it provides a coherent methodology for designating lots as satisfactory or unsatisfactory for shipment and proposed use.

Acceptance sampling procedures based on the allocation of priorities principle (APP) - Part 2: Coordinated single sampling plans for acceptance sampling by attributes