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JJF 1345-2012 English PDF

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Q: Should I purchase the latest version JJF 1345-2012?

Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version JJF 1345-2012 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.

US$579.00 · In stock
Delivery: <= 5 days. True-PDF full-copy in English will be manually translated and delivered via email.
JJF 1345-2012: Calibration Specification for Cylindrical Thread Gauges
Status: Valid

JJF 1345: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
JJF 1345-2012	579	Add to Cart	5 days	Calibration Specification for Cylindrical Thread Gauges	Valid
JJF 1345-1990	199	Add to Cart	2 days	O.T.N. of Exposure Primary Standard for γ-rays	Obsolete

Similar standards

JJF 1561 JJF 1406 JJF 1280 JJF 1349 JJF 1350 JJF 1347

Basic data

Standard ID: JJF 1345-2012 (JJF1345-2012)
Description (Translated English): Calibration Specification for Cylindrical Thread Gauges
Sector / Industry: Metrology & Measurement Industry Standard
Classification of Chinese Standard: A52
Classification of International Standard: 17.040
Word Count Estimation: 25,256
Older Standard (superseded by this standard): JJG 888-1995
Quoted Standard: JJF 1071-2010; GB/T 3934-2003; GB/T 14791-1993; GB/T 27025
Adopted Standard: EURAMET/cg-10/v.01-2007, NEQ; DKD-R 4-3-2003, NEQ
Regulation (derived from): State Administration of Quality Supervision, Inspection and Quarantine Notice 2012 No. 63;
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine
Summary: This standard applies to symmetrical straight flank tooth type cylindrical thread gauge calibration.

JJF 1345-2012: Calibration Specification for Cylindrical Thread Gauges

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Calibration Specification for Cylindrical Thread Gauges People's Republic of China National Metrology Technical Specifications Cylindrical thread gauge calibration specification Issued on. 2012-04-17 2012-10-17 implementation The State Administration of Quality Supervision, Inspection and Quarantine released Cylindrical thread gauge calibration specification es Instead of JJG888-1995 Focal point. the National Technical Committee of length measuring geometry The main drafting units. China Institute of Metrology Liaoning Provincial Institute of Metrology Participated in the drafting unit. Chengdu into a tool Group Co., Ltd. This specification length measuring geometry commissioned the National Technical Committee is responsible for interpretation The main drafters of this specification. Wang farming (China Institute of Metrology) Pei Limei (China Institute of Metrology) Shizuo De (Liaoning Provincial Institute of Metrology) Zhang Yu (Liaoning Provincial Institute of Metrology) Drafters participate. Wang Ying (Chengdu into a tool Group Co., Ltd.)

Introduction (Ⅱ) 1 Scope (1) 2. References (1) 3 Terms (1) 4 Overview (1) 5 Metrological characteristics (1) 5.1 Metrological characteristics and symbols (1) 5.2 Metrological characteristics calibration combination (2) 6 calibration conditions (3) Environmental conditions 6.1 (3) 6.2 standard instruments and other equipment (3) 7 calibration items and calibration methods (3) 7.1 Calibration portfolio (3) 7.2 Calibration method (3) 8 calibration results expression (7) 9 Recalibration interval (7) APPENDIX A small ring work and general purpose working ring gauge calibration (8) Appendix B Uncertainty Evaluation diameter measurement sample (9) Calculation Examples Appendix C diameter (14) Appendix D calibration records and certificates within the page format (15) Appendix E list of symbols for use in specifications (18)

Introduction

The reference to the following specification drafting. The European Federation of National Metrology Institute (EuropeanAssociationofNationalMetrologyInstitutes) Calibration Guide. mechanical measurement gauge diameter cylindrical threaded guide (EURAMET/cg-10/v.01. Deter- minationofPitchDiameterofParalelThreadGaugesbyMechanicalProbing, July2007) German Calibration Laboratory (DKD) guide DKD-R4-3.2003 section 4.8. dimensional measuring instruments calibration Standard. threaded barrel set regulations, work regulations and master gauge calibration (RichtlinieDKD-R4-3Blatt4.8Kalibri- erenvon Messmittelnfürgeometrische Messgröβen. Kalibrierenvonzylindrischen Gewinde-Einsteldornen, Gewinde-Lehrdornenund-Prüfdornen, 2003) The specification for the revision, instead of JJG888-1995 "Cylindrical thread gauge." Compared with JJG888, in addition to editorial changes, the major technical changes are as follows. Metrological characteristics --- calibration includes only thread gauge diameter values parameters directly impact. diameter, single tooth side Angle, pitch and pitch accumulated error. Inspection of metrological characteristics, such as hardness, surface roughness, etc. are not included. --- For metrological characteristics set combinations can be calibrated clear part of the metrological characteristics according to need to select combinations. Effect --- diameter of the probe components considered by the laboratory as uncertainty depending on the method used. Cylindrical thread gauge calibration specification

1 Scope

This standard applies to symmetrical straight tooth flank Cylindrical thread gauge calibration. 2. References This specification refers to the following documents. JJF 1071-2010 National Calibration Specifications writing rules GB/T 3934-2003 Technical requirements common thread gauge GB/T 14791-1993 threaded term GB/T 27025 testing and calibration laboratories General requirements For dated references, only the dated edition applies to this specification; undated reference documents Member, the latest edition (including any amendments) applies to this specification.

3 Terms

The term cylindrical threaded see GB/T 3934-2003, GB/T 14791-1993.

4 Overview

Cylindrical thread gauge is internal and external thread cylindrical element size boundary conditions for a comprehensive examination of measuring instruments, with The control elements threaded barrel limit sizes. Elements that constitute threaded barrel shown in Figure 1. Figure 1 threaded barrel elements d2- diameter; d- large diameter; d1- trails; P- pitch; α1, α2- flank angle; α- tooth type angle, α = α1 α2 Note. The figure graphics and symbols apply to external threads. Internal thread diameter, large diameter, small diameter symbols are denoted as D2, D, D1, the same as the rest of the external thread.

5 Metrological characteristics

5.1 Metrological characteristics and symbols Metrological characteristics and symbols shown in Table 1. ......

Image

Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of JJF 1345-2012_English be delivered?

Answer: Upon your order, we will start to translate JJF 1345-2012_English as soon as possible, and keep you informed of the progress. The lead time is typically 3 ~ 5 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of JJF 1345-2012_English with my colleagues?

Answer: Yes. The purchased PDF of JJF 1345-2012_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.

Question 5: Should I purchase the latest version JJF 1345-2012?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version JJF 1345-2012 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.