GB/T 1218-2018 English PDF

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GB/T 1218-2018: Depth micrometer
Status: Valid

GB/T 1218: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 1218-2018	219	Add to Cart	3 days	Depth micrometer	Valid
GB/T 1218-2004	319	Add to Cart	3 days	Depth micrometer	Obsolete
GB/T 1218-1987	319	Add to Cart	3 days	Depth micrometers	Obsolete

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GB/T 22092   GB/T 1216   GB/T 22097   GB/T 1217   

Basic data

Standard ID: GB/T 1218-2018 (GB/T1218-2018)
Description (Translated English): Depth micrometer
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: J42
Classification of International Standard: 17.040.30
Word Count Estimation: 11,168
Date of Issue: 2018-05-14
Date of Implementation: 2018-12-01
Older Standard (superseded by this standard): GB/T 1218-2004
Regulation (derived from): National Standards Announcement No. 6 of 2018
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 1218-2018: Depth micrometer

---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 micrometer) ICS 17.040.30 J42 National Standards of People's Republic of China Replace GB/T 1218-2004 Depth micrometer Depthmicrometer Published on.2018-05-14 2018-12-01 implementation State market supervision and administration China National Standardization Administration issued

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard replaces GB/T 1218-2004 "Depth Micrometer". This standard is compared with GB/T 1218-2004, except for editorial modifications. In addition, the main technical changes are as follows. --- Revised the scope of the standard, increased the range of the range, deleted the specification of the index value of 0.002mm (see Chapter 1, Chapter 1 of the.2004 edition); --- Redefine the terminology and add terms and definitions such as "zero value error" (see Chapter 3, Chapter 3 of the.2004 edition); --- Revised the type definition of the depth micrometer (see 4.1, 4.1 of the.2004 edition); --- Modified the basic parameters of the depth micrometer (see 4.2,.2004 version 4.2); --- Revised the requirements for the appearance of the depth micrometer (see 5.1, 5.1 of the.2004 edition); --- Increased requirements for depth micrometer interactions (see 5.2); ---Modified the material, hardness and roughness requirements of the bottom plate and the measuring rod, removed the malleable cast iron material, increased the material of the proofreader, and hard Degree and roughness requirements (see 5.3, 5.7,.2004 editions 5.2.1, 5.6); ---Modified and added requirements for various devices for depth micrometers (see 5.5, 5.4, 5.5 of the.2004 edition); ---Modified the requirements for the flatness of the bottom plate (see 5.7.3, 5.6.3 of the.2004 version); --- Revised the content and verification requirements of the maximum allowable error of the indication (see 5.9, 5.9 of.2004 edition); --- Increased the requirements of the proofreader (see 5.10); --- Increased the requirements for inspection conditions (see Chapter 6); --- Increased the content of the inspection method, supplemented the inspection methods of appearance, interaction, inspection of various devices (see Chapter 7); --- Increased the test method for measuring the parallelism of the measuring surface of the measuring rod (see 7.6.3); --- Modified the test method for indication error (see 7.8,.2004 edition 6.2). This standard was proposed by the China Machinery Industry Federation. This standard is under the jurisdiction of the National Standardization Technical Committee for Measuring Instruments (SAC/TC132). This standard is drafted by. Guilin Measuring Tool has limited liability company. Participated in the drafting of this standard. Chengdu Tool Research Institute Co., Ltd., Suzhou Macaron Measurement Technology Co., Ltd., Chengdu Mass Tool Set Group Co., Ltd., Harbin Measuring Tool Group Co., Ltd., Guilin Guanglu Digital Measurement & Control Co., Ltd., National Quality Supervision Inspection Center, Institute of Metrology and Measurement of Guangxi Zhuang Autonomous Region, Liaoning Institute of Metrology. The main drafters of this standard. Zhao Weirong, Wei Gaihong, Chen Yu, Huang Xiaobin, Luo Weibing, Wang Jing, Dong Zhongxin, Liang Yuhong, Hu Xiaoping, Yao Xingyu. The previous versions of the standards replaced by this standard are. ---GB/T 1218-1975, GB/T 1218-1987, GB/T 1218-2004. Depth micrometer

1 Scope

This standard specifies the terms and definitions, types and basic parameters, requirements, depth micrometers (excluding electronic digital depth micrometers). Inspection conditions, inspection methods, signs and packaging. This standard applies to the division value of 0.01mm, 0.005mm, 0.001mm, the micrometer range is 25mm, 50mm, the measurement range Scale readings up to 300mm and digital reading depth micrometers (excluding electronic digital depth micrometers).

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article. Pieces. For undated references, the latest edition (including all amendments) applies to this document. GB/T 1216-2018 outer diameter micrometer GB/T 1800.2-2009 Geometrical Product Specifications (GPS) Limits and fits. Part 2. Standard tolerance classes and Limit deviation table GB/T 17163-2008 Geometrical quantity measuring instrument terminology basic terminology GB/T 17164-2008 Geometric quantity measuring instrument terminology product terminology GB/T 18779.1-2002 Specification for geometrical quantities of products (GPS) Measurements and measurements of workpieces and measuring equipment - Part 1. Determination rules for passing or failing to pass the inspection GB/T 24634-2009 Geometrical Product Specifications (GPS) General concepts and requirements for GPS measuring equipment

3 Terms and definitions

GB/T 17163-2008, GB/T 17164-2008 and GB/T 24634-2009 define the following terms and definitions apply In this document. 3.1 Depth micrometer depthmicrometer A depth measuring instrument that reads the distance separating the measuring surface of the bottom plate from the measuring surface of the measuring rod by the principle of the spiral pair. Note. Rewrite GB/T 17164-2008, definition 2.3.12. 3.2 "zero" value error zeroerror In the set of measuring rods of the depth micrometer, when the measuring rods with different nominal values are replaced, the deviation of the initial value of each measuring rod is “zero”. Note. Rewrite GB/T 17163-2008, definition 4.23.

4 type and basic parameters

4.1 type The type of the depth micrometer is shown in Figure 1 and Figure 2. The illustration is for illustration only and does not represent the detailed structure. ......

Image     

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