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JJG 24-2016 English PDF

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Q: Should I purchase the latest version JJG 24-2016?

Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version JJG 24-2016 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$489.00 · In stock
Delivery: <= 4 days. True-PDF full-copy in English will be manually translated and delivered via email.
JJG 24-2016: Depth Micrometers
Status: Valid

JJG 24: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
JJG 24-2016	489	Add to Cart	4 days	Depth Micrometers	Valid
JJG 24-2010	RFQ	ASK	3 days	Verification Regulation of Cut Tobacco Elasticity Tester
JJG 24-2003	679	Add to Cart	3 days	Verification Regulation of Depth Micrometers	Obsolete
JJG 24-1986	479	Add to Cart	4 days	Verification Regulation of Depth Micrometers	Obsolete
JJG 24-1977	RFQ	ASK	3 days	(Chinese Industry Standard)	Obsolete

Similar standards

JJG 517 JJG 0061 JJG 5 JJG 34 JJG 28

Basic data

Standard ID: JJG 24-2016 (JJG24-2016)
Description (Translated English): Depth Micrometers
Sector / Industry: Metrology & Measurement Industry Standard
Classification of Chinese Standard: A52
Word Count Estimation: 21,263
Date of Issue: 2016-11-30
Date of Implementation: 2017-05-30
Older Standard (superseded by this standard): JJG 24-2003
Regulation (derived from): State Administration of Quality Supervision, Inspection and Quarantine Notice No.119 of 2016
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine

JJG 24-2016: Depth Micrometers

---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.
Depth Micrometers National Metrological Verification Regulation of the People's Republic of China Depth micrometer 2016-11-30 release 2017-05-30 implementation State Administration of Quality Supervision, Inspection and Quarantine issued Depth micrometer test procedure Replacing JJG 24-2003 Coordinate Unit. National Geometric Engineering Parameter Measurement Technical Committee The main drafting unit. Heilongjiang Province measurement test test hospital Liaoning Institute of Metrology Participate in the drafting unit. Guilin measuring and cutting tool limited liability company Harbin Metrology and Testing Institute Dalian Institute of Metrology and Measurement This procedure entrusts the National Geometric Engineering Engineering Metrology Technical Committee to explain The main drafters of this procedure. Liang Yuhong (Heilongjiang Province Measurement and Testing Institute) Yang Lin (Heilongjiang Province measurement test test hospital) Liu Na (Liaoning Institute of Metrology) Li Xuhui (Heilongjiang Province Metrology and Testing Institute) Participate in the drafters. Zhao weirong (Guilin measuring and cutting tool limited liability company) Zong Yujuan (Harbin Metrology and Testing Institute) Wang Tao (Dalian Institute of Metrology and Measurement)

Introduction (II) 1 Scope (1) 2 References (1) 3 Overview (1) 4 Measurement performance requirements (2) 4.1 line width and width difference (2) 4.2 Distance between the edge of the differential cone and the edge of the fixed tube (2) 4.3 relative position of the end face of the differential cone and the fixed tube mm (2) 4.4 Surface roughness of the measuring surface (2) 4.5 Flatness of the floor of the floor (3) 4.6 Force (3) 4.7 indication error (3) 4.8 Zero value error and change (3) 4.9 proof of measuring the size of the measurement and parallel measurement of two parallel (4) 4.10 parallelism between the measuring rod and the measuring surface of the measuring plate (4) 5 General technical requirements (4) 5.1 appearance (4) 5.2 Partial interaction (4) 6 Metering device control (4) 6.1 Test conditions (5) 6.2 Verification Items and Main Verification Appliances (5) 6.3 Test method (5) 6.4 Processing of test results (9) 6.5 Test cycle (9) Appendix A depth of the micrometer indication error measurement results of the measurement uncertainty assessment (10) APPENDIX B CERTIFICATE AND QUALIFICATION RESULTS The information and format (13)

Introduction

The amendments to this Code are governed by JJF1001-2011 "General Metrology Terms and Definitions", JJF1002-2010 " Metrological verification procedures for the preparation of rules ", JJF1059.1-2012" measurement uncertainty assessment and representation "as the basis of the Department Column specification. Compared with JJG 24-2003 "depth micrometer", the main technical changes in addition to editorial changes are as follows. --- the original measurement performance "can change the working length of the measuring rod" to "zero value error and the amount of change", and the technical Surgical indicators and test methods were modified accordingly; --- metering performance requirements and GB/T 1218 "depth micrometer" to maintain unity; --- increase the structure of the digital indicator device type and the corresponding technical requirements; --- increase the depth of the micrometer corresponding to different measuring rod and micrometer head range of 50mm indication error test, In the indication error of the test method to increase the "take the maximum value of the test point in the maximum value of the indication error for the foot of the error difference"; --- increase the "measurement of the measuring rod and the bottom of the measurement plane parallelism" of the test; --- According to JJF1059.1-2012 "Measurement uncertainty assessment and representation", respectively, according to the upper limit of measurement 25mm, 150mm, 300mm depth micrometer as an example to measure the uncertainty of measurement. Prerequisites of this Code Release. --- JJG 24-2003; --- JJG 24-1986. Depth micrometer test procedure

1 Scope

This procedure applies to the scale value of 0.01mm, the upper limit of the measurement range of not more than 300mm of the type of depth of 1000 Ruler and type II depth micrometer of the first test, follow-up test and use of the inspection.

2 reference file

This procedure refers to the following documents. GB/T 1218 depth micrometer For dated references, only the dated edition applies to this rule; references that are not dated , The latest version (including all amendments) applies to this procedure.

3 Overview

The depth micrometer is a measure of the distance between the bottom plate measuring surface and the measuring rod Apparatus is mainly used to measure the depth of the hole or groove of the workpiece and the height of the step. The depth micrometer is fixed by the differential cylinder Casing, measuring rod, floor, force measuring device, locking device and other components. Ⅰ-type depth micrometer using the scale to read, the structure of the type shown in Figure 1; Ⅱ-type depth micrometer is also Lee Read with a line, and equipped with a digital indicator for auxiliary reading, the structure of the type shown in Figure 2. Depth thousands The attachment of the foot is shown in Fig. Figure 1 Type I depth micrometer 1-measuring rod; 2-bottom plate; 3-locking device; 4-fixed sleeve; 5-cylinder; 6-force device ......

Image

Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of JJG 24-2016_English be delivered?

Answer: Upon your order, we will start to translate JJG 24-2016_English as soon as possible, and keep you informed of the progress. The lead time is typically 2 ~ 4 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of JJG 24-2016_English with my colleagues?

Answer: Yes. The purchased PDF of JJG 24-2016_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 JJG 24-2016?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version JJG 24-2016 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.