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GB/T 90.1-2023 English PDF (GB/T 90.1-2002, GB/T 90-1985)

GB/T 90.1-2023_English: PDF (GB/T90.1-2023)
Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
GB/T 90.1-2023English260 Add to Cart 0--9 seconds. Auto-delivery Fasteners -- Acceptance inspection Valid GB/T 90.1-2023
GB/T 90.1-2002English599 Add to Cart 4 days [Need to translate] Fasteners -- Acceptance inspection Obsolete GB/T 90.1-2002
GB/T 90-1985English279 Add to Cart 3 days [Need to translate] Acceptance inspection, marking and packaging of fasteners Obsolete GB/T 90-1985


BASIC DATA
Standard ID GB/T 90.1-2023 (GB/T90.1-2023)
Description (Translated English) Fasteners -- Acceptance inspection
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard J13
Classification of International Standard 21.060.01
Word Count Estimation 16,153
Date of Issue 2023-05-23
Date of Implementation 2023-12-01
Older Standard (superseded by this standard) GB/T 90.1-2002
Drafting Organization China Machine Productivity Promotion Center Co., Ltd., Shanghai Shenguang High Strength Bolt Co., Ltd., Jinan Shida Fastener Co., Ltd., Shanghai Jiyoubiao Wu High Strength Fastener Co., Ltd., Yuxing Fastener (Jiaxing) Co., Ltd. , Zhejiang Rixing Standard Parts Co., Ltd., W��rth (Shanghai) Industrial Fastener Co., Ltd., Hunan Zhongji Shenyi Testing Technology Co., Ltd., Anhui Ningguo Dongbo Fastener Co., Ltd., Wuxi Standard Parts Factory Co., Ltd. Company, Machinery Industry General Parts Product Quality Supervision and Testing Center, Zhejiang Aozhan Aviation Technology Co., Ltd., Hebei Wuwei Aviation Technology Co., Ltd., Zhejiang Yutai Auto Parts Co., Ltd., Quzhou Tianli Fastener Co., Ltd.
Administrative Organization National Fastener Standardization Technical Committee (SAC/TC 85)
Proposing organization China Machinery Industry Federation
Issuing agency(ies) State Administration for Market Regulation, National Standardization Management Committee

BASIC DATA
Standard ID GB/T 90.1-2002 (GB/T90.1-2002)
Description (Translated English) Fasteners. Acceptance inspection
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard J13
Classification of International Standard 21.060.01
Word Count Estimation 15,159
Date of Issue 2002-12-05
Date of Implementation 2003-06-01
Older Standard (superseded by this standard) GB/T 90-1985 Partial
Quoted Standard GB/T 2828-1987; GB/T 3098.1-2000; GB/T 3098.2-2000; GB/T 3098.3-2000; GB/T 3098.4-2000; GB/T 3098.5-2000; GB/T 3098.6-2000; GB/T 3098.7-2000; GB/T 3098.9-2002; GB/T 3098.10-1993; GB/T 3098.15-2000; GB/T 3098.16-2000; GB/T 3103.1-2002; GB/T 3103.3-2000; GB/T 3934-1983; GB/T 5267.1-2002; GB/T 5267.2-2000; GB/T 5280-2002; GB/T 5779.1-2000; GB/T 5779.2-2000; ISO 3534-2-1993; ISO 8402 - 1994
Adopted Standard ISO 3269-2000, IDT
Drafting Organization Mechanical Engineering Research Institute
Administrative Organization National Standardization Technical Committee fasteners
Proposing organization China Machinery Industry Federation
Issuing agency(ies) General Administration of Quality Supervision, Inspection and Quarantine of the People Republic of China
Summary This standard applies to bolts, screws, studs, nuts, pins, washers, blind rivets and other fasteners. In order not associated with the use of other fasteners supplier agreements acceptance inspection procedures in the case, demand-side fasteners must follow inspection procedures specified in this standard to determine the acceptance or rejection of a number of fasteners. The acceptance of additional requirements, in particular the product standard (if any validity rectangular nut) is given. The same procedure applies to the acceptance of technical conditions controversial circumstances. But not for high-speed mechanical assembly, special purpose or special project supervision, demanding process control procedures and batch tracking (see ISO Introduction Note) and other occasions fasteners. Acceptance of these products in the supply and demand sides inspection procedures should be consensus before confirming the order. This standard applies only to finished fasteners, does not apply to the production process of any local process control or inspection.

BASIC DATA
Standard ID GB/T 90-1985 (GB/T90-1985)
Description (Translated English) Acceptance inspection, marking and packaging of fasteners
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard J13
Word Count Estimation 7,760
Date of Issue 1985/7/25
Date of Implementation 1987/1/1
Older Standard (superseded by this standard) GB 90-1976
Adopted Standard ISO 3269-1984, MOD


GB/T 90.1-2023 GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 21.060.01 CCS J 13 Replacing GB/T 90.1-2002 Fasteners - Acceptance inspection (ISO 3269:2019, MOD) ISSUED ON: MAY 23, 2023 IMPLEMENTED ON: DECEMBER 01, 2023 Issued by: State Administration for Market Regulation; Standardization Administration of the People’s Republic of China. Table of Contents Foreword ... 3 Introduction ... 5 1 Scope ... 6 2 Normative references ... 6 3 Terms and definitions ... 6 4 Symbols ... 7 5 Fastener acceptance inspection procedures ... 8 6 Inspection result and disposition ... 11 Appendix A (Informative) Basic information of sampling plans ... 13 Appendix B (Informative) Operating characteristic of sampling plans ... 15 References ... 16 Fasteners - Acceptance inspection 1 Scope This document specifies the inspection procedures to be used by the purchaser without prior agreement, and specifies the arbitration acceptance procedures for inspection lot acceptance or rejection when no agreement can be reached between the purchaser and the supplier or when there is a dispute over compliance with the technical specification. This document applies to acceptance inspection of bolts, screws, studs, nuts, pins, washers, rivets and other related fasteners. This document does not apply to fasteners for high-speed mechanical assembly, special purpose applications, or special engineering applications requiring more advanced process control and lot traceability. For process control or final inspection of manufacturing and sorting, see GB/T 90.3. 2 Normative references The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the version corresponding to that date is applicable to this document; for undated references, the latest version (including all amendments) is applicable to this document. GB/T 2828.1, Sampling procedures for inspection by attributes - Part 1: Sampling schemes indexed by acceptance quality limit (AQL) for lot-by-lot inspection (GB/T 2828.1-2012, ISO 2859-1:1999, IDT) GB/T 3099.4, Terminology of fasteners - Control, inspection, delivery, acceptance and quality (GB/T 3099.4-2021, ISO 1891-4:2018, MOD) GB/T 3358.2, Statistics - Vocabulary and symbols - Part 2: Applied statistics (GB/T 3358.2-2009, ISO 3534-2:2006, IDT) 3 Terms and definitions For the purpose of this document, terms and definitions determined by GB/T 2828.1, GB/T 3099.4 and GB/T 3358.2, as well as the following apply. 3.1 inspection lot Re Rejection number LQ10 Limiting quality at 10% probability of acceptance, % AQL95 Acceptance quality limit at 95% probability of acceptance, % N Lot size Pa Probability of acceptance, % 5 Fastener acceptance inspection procedures 5.1 General requirements The requirements of this document apply to the fasteners in the delivery state of the supplier, that is, the delivery state of the fasteners has not been changed. If the purchaser changes the delivery state of the fastener or reprocesses it, the purchaser shall bear the responsibility for changes in the consistency of characteristics caused by such processing. The acceptance inspections specified in this document apply after receiving the fasteners and before releasing the lot to any subsequent processing. Inspections carried out in accordance with this document shall be as specified in Tables 1 and 2. Any non-conforming, once found during the inspection, shall be dealt with according to the requirements of 6.2 and/or 6.3. Before any disposition, the purchaser shall give the supplier the opportunity to verify any unverified nonconformity. 5.2 Inspection procedures 5.2.1 General The purchaser may choose this document to verify whether the fastener meets the technical requirements of the product standard or other specified requirements. 5.2.2 Sample size The sample size shall be based on the number of inspection lots specified in Table 1. If the sample size is larger than the number of inspection lots, non-destructive testing requires 100% inspection. The sample size n, the acceptance number Ac and the rejection number Re shall be determined separately for each selected characteristic. Appendix A (Informative) Basic information of sampling plans Acceptance inspection is generally carried out by the purchaser to confirm whether the production of the delivered fasteners meets the technical specifications. Table 1 provides the acceptance inspection sampling plans for the three categories of characteristics based on different statistical methods. Different statistical methods have different risk results for the purchaser and the supplier. The party conducting the acceptance inspection is responsible for selecting the sampling plan and appropriate tests. Category 1 characteristics are mechanical properties that are critical to the function of the fastener. It is assumed that a deviation in process parameters during lot production will result in a substantial proportion of non-conformity of the lot and is expected to be detected in a small sample. Based on the above assumptions, the acceptance inspection sampling plans for Category 1 characteristics require acceptance number Ac=0, and do not provide statistical information. When non-conformity is found, verification is required to reach agreement on the disposition of the lot (see Chapter 6). Category 2 characteristics are dimensional characteristics that affect the usability of the fastener. It is assumed that the properties due to normal variation of the production process satisfy a statistical distribution. The sampling plans for Category 2 characteristics are based on the acceptance number Ac=0; however, a single non- conformity does not automatically require rejection of the lot. An additional sampling with the same acceptance number Ac=0 increases the confidence in lot consistency while avoiding rejection based on the detection of a single non-conformity. The sample size selected for Category 2 characteristics must meet the “consumer risk” similar to the AQL=6.5 plan, and is selected from the OC curve of a single sampling plan shown in the Zero Acceptance Number Sampling Plan [9]. “Consumer risk” refers to the value of the quality level, expressed in percentage of non-conforming parts, with a 10% probability of being accepted. See Table A.1 (LQ10). “Supplier risk” refers to the value of the quality level, expressed in percentage of non-conforming parts, with a 95% probability of being accepted. See Table A.1 (AQL95). These values apply only to a single inspection and do not take into account additional sampling after finding a non- conforming part in the first sampling. Category 3 characteristics refer to dimensional characteristics and certain functional properties, which allow a certain degree of non-conformity. It is assumed that the properties due to normal variation of the production process satisfy a statistical distribution. The sampling plans for Category 3 characteristics is based on the ......

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