GB/T 21390-2008 English PDF

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GB/T 21390-2008: Vernier, dial and digital display height calipers
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 21390-2008	399	Add to Cart	3 days	Vernier, dial and digital display height calipers	Valid

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Basic data

Standard ID: GB/T 21390-2008 (GB/T21390-2008)
Description (Translated English): Vernier, dial and digital display height calipers
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: J42
Classification of International Standard: 17.040.30
Word Count Estimation: 17,190
Date of Issue: 2008-02-02
Date of Implementation: 2008-07-01
Older Standard (superseded by this standard): GB/T 1214.3-1996; GB/T 1214.1-1996
Quoted Standard: GB/T 2423.3-1993; GB/T 2423.22-2002; GB 4208-1993; GB/T 17163; GB/T 17164; GB/T 17626.2-1998; GB/T 17626.3-1998
Regulation (derived from): National Standard Approval Announcement 2008 No.2 (Total No.115)
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary: This standard specifies the height vernier caliper, terms and definitions height caliper caliper with digital display height table, forms and basic parameters, requirements, test methods, inspection conditions, test methods, signs and other packaging. This standard applies to indexing value/resolution of 0. 01 mm, 0. 02 mm, 0. 05 mm and 0. 10 mm, measuring range (0 to 150) mm to (0 ~ 1000) vernier caliper mm in height, table with several highly caliper significant height caliper.

GB/T 21390-2008: Vernier, dial and digital display height calipers

---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.
Vernier, dial and digital display height callipers ICS 17.040.30 J42 National Standards of People's Republic of China Replacing GB/T 1214.1-1996, GB/T 1214.3-1996 Cursor with digital display table height caliper Posted 2008-02-02 2008-07-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

This standard is GB/T 1214.1-1996 "vernier caliper category General technical conditions", GB/T 1214.3-1996 "Cursor class Caliper vernier caliper height "and JB/T 5609-1991" electronic digital height caliper "three standard integration amendment. This standard replaces GB/T 1214.1-1996 "vernier caliper category General technical conditions", GB/T 1214.3-1996 "Cursor class Height caliper vernier caliper. " From the date of implementation of this standard, JB/T 5609-1991 "electronic digital height caliper" void. This standard is compared with the above three criteria, the main changes are as follows. --- Increasing the height of the table with caliper varieties; --- Extended height caliper 1) Measuring range (GB/T 1214.3-1996 of Chapters 1 and 3.2, JB/T 5609-1991 of Chapters 1 and 4.2; this standard Chapters 1 and 4.2); --- Use the "scale value" and "resolution" instead of the term "reading value" and "resolution" Terminology (GB/T 1214.1-1996 Chapter 1, JB/T 5609-1991 Chapter 1; Table 1 of this standard); --- Use the "scale marks" instead of the term "reticle of ruler" and "Cursor engraved lines" and other terms, and the introduction of "zero error" term (GB/T 1214.1-1996 3.6 and 3.7 of this standard 5.5,5.6,5.7); --- With "micro height vernier caliper parallax" term instead of "ignoring the poor calipers" and "the same plane type caliper" Terminology (GB/T 1214.1- 1996 3.6.3; 5.6.1 of this standard); --- Deleted "error between any two points," the definitions of the terms and requirements (JB/T 5609-1991 3.2 and 5.11); --- Increased its digital height caliper communication interface requirements (this standard 5.10); This standard specifies the height vernier caliper, with terms and definitions table height caliper caliper digital display height, form and basic parameters, requirements, Test methods, test conditions, test methods, marking and packaging. This standard applies to the value of indexing/resolution of 0.01mm, 0.02mm, 0.05mm and 0.10mm, measuring range (0 ~ 150) mm to (0 ~ 1000) mm height vernier caliper with digital display height table height caliper caliper (hereinafter referred to as "high caliper").

2 Normative references

The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard. GB/T 2423.3-1993 electric and electronic products environmental testing procedures Test Ca. Damp heat test method (eqv IEC 60068-2-3. 1984) GB/T 2423.22-2002 Environmental testing for electric and electronic products Part 2. Test methods - Test N. change in temperature (IEC 60068-2-14. 1984, IDT) GB 4208-1993 housing protection (IP Code) (eqv IEC 529. 1989) GB/T 17163 dimensional measuring instruments - Basic terminology GB/T 17164 dimensional measuring instruments - Product terms GB/T 17626.2-1998 Electromagnetic compatibility - Testing and measurement techniques - Electrostatic discharge immunity test (idt IEC 61000-4-2. 1995) GB/T 17626.3-1998 Electromagnetic compatibility - Testing and measurement techniques RFEMS test (idt IEC 61000-4-3.1995)

3 Terms and Definitions

GB/T 17163, GB/T 17164 and established in the following terms and definitions apply to this standard. 3.1 When digital height caliper normal display value, one-foot frame relative to the maximum moving speed foot body. 3.2 By the error limits of calipers highly specified technical norms, rules and so on. Note. The tolerance limit can not be less than the digital differential (resolution) or vernier scale interval.

4 form and basic parameters

Form height caliper as shown in Figure 4.1. 1 to 3. Illustration illustration purposes only and does not indicate a detailed structure. ......

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