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JJG 31-2011 English PDF

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JJG 31-2011: Verification Regulation of Height Caliper
Status: Valid

JJG 31: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
JJG 31-2011English419 Add to Cart 3 days [Need to translate] Verification Regulation of Height Caliper Valid JJG 31-2011
JJG 31-1999English599 Add to Cart 4 days [Need to translate] Verification Regulation of Height Cauge Obsolete JJG 31-1999
JJG 31-1987English599 Add to Cart 4 days [Need to translate] (Height vernier caliper test procedures) Obsolete JJG 31-1987

PDF similar to JJG 31-2011


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Basic data

Standard ID JJG 31-2011 (JJG31-2011)
Description (Translated English) Verification Regulation of Height Caliper
Sector / Industry Metrology & Measurement Industry Standard
Classification of Chinese Standard A52
Word Count Estimation 18,178
Date of Issue 2011-01-21
Date of Implementation 2011-07-21
Older Standard (superseded by this standard) JJG 31-1999
Quoted Standard JJF 1001-1998; JJF 1059-1999; GB/T 21390-2008
Regulation (derived from) General Administration of Quality Supervision, Inspection and Quarantine Notice No. 15 of 2011
Issuing agency(ies) General Administration of Quality Supervision, Inspection and Quarantine
Summary This standard applies to dividing the value or the resolution is 0. 01mm, 0. 02mm, 0. 05mm and 0. 10mm, measuring range (0 ~ 2000) mm kinds of cursors, with a table and several significant height caliper first test, follow-up test and use of checks.

JJG 31-2011: Verification Regulation of Height Caliper

---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.
Verification Regulation of Height Caliper State verification procedures People's Republic of China Height caliper HeightCaliper Issued on. 2011-01-21 2011-07-21 implementation The State Administration of Quality Supervision, Inspection and Quarantine released Height caliper test procedures ofHeightCalip er Replacing JJG 31-1999 The regulations by the State Administration of Quality Supervision, Inspection and Quarantine on January 21, 2011 for approval and self From July 21, 2011 into effect. NFP. National Engineering Geometrical Parameters Measurement Technology Committee Main drafting unit. Shaanxi Provincial Institute of Metrology Participated in the drafting. the Ministry of Industry and Information Technology Institute of Electronics V This procedure works commissioned by the National geometric parameter measurement technology committee responsible for the interpretation The main drafters of this procedure. Evergreen (Shaanxi Provincial Institute of Metrology) Zhang Hui (Shaanxi Provincial Institute of Metrology) Drafters participate. Zhangxiao Fen (Ministry of Industry and Information Technology Institute of Electronics V)

table of Contents

1 Scope (1) 2. Referenced Documents (1) 3 Overview (1) 4 metering performance requirements (3) Width and width difference (3) 4.1 scale mark 4.2 jaws measuring surface and base surface roughness of the surface (3) 4.3 jaws measuring surface flatness and the base face (3) 4.4 jaws Parallelism measurement surface and the base face (3) 4.5 Repeatability (3) 4.6 Drift (4) 4.7 Zero error (4) 4.8 Indication Error (4) 5 General technical requirements (4) 5.1 Appearance (4) 5.2 Interaction of each part (5) 5.3 the relative position of each part (5) 6 Control of measuring instruments (5) 6.1 Verification condition (5) 6.2 test items and test equipment (5) 6.3 Verification Methods (6) 6.4 Verification Results Processing (8) 6.5 test cycle (8) Appendix A height caliper measuring indication error Uncertainty Evaluation (9) Appendix B calibration certificate and test results in the notice page format (12) Height caliper test procedures

1 Scope

This procedure is applied to the value or indexing resolution of 0.01mm, 0.02mm, 0.05mm and 0.10mm, measured Volume range (0 ~ 2000) mm variety cursor with digital display table height caliper initial verification, subsequent verification And the use of checks.

2 Citations

The regulations cited in the following documents JJF1001-1998 common measurement terms and definitions JJF1059-1999 Evaluation and Expression of Uncertainty in Measurement GB/T 21390-2008 cursor with digital display table height caliper When using this procedure, it should pay attention to using the currently valid version of the documents cited.

3 Overview

Height caliper is used to measure the height position of the workpiece surface and the measuring precision crossed. Its main structure was Height vernier caliper (see Figure 1), and several significant height caliper (see Figures 4 and 5) with a table height caliper (see Figures 2 and 3).

1 height vernier caliper

1- crossed jaws; 2- vernier; 3 - the main scale; 4- foot body; 5- micro device; 6- foot frame; 7- fastening screw; 8- base

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Question 5: Should I purchase the latest version JJG 31-2011?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version JJG 31-2011 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.