GB/T 7235-2004 in English

VALID

Geometrical Product Specifications(GPS)--Methods for the assessment of departure from roundness--Measurement of variations in radius

Issued on:2004-11-11
Implemented on:2005-07-01
File Format:PDF
Delivery:Via email within 1~3 business days

Price(USD)： $480.00
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Standard No:	GB/T 7235-2004
Document status:	VALID
Title in English:	Geometrical Product Specifications(GPS)--Methods for the assessment of departure from roundness--Measurement of variations in radius
Title in Chinese:	产品几何量技术规范(GPS)评定圆度误差的方法半径变化量测量
Language:	English
File Format:	Electronic (PDF)
Delivery:	Via email within 1~3 business days
Issued on:	2004-11-11
Implemented on:	2005-07-01
Superseding:	GB/T 7235-1987 Methods for the assessment of departure from roundness--Measurement of variations in radius
ICS Classification:	17.040.20-Properties of surfaces
Chinese Classification:	J04-Basic standards and general methods
Professional Classification:	GB-National Standard
Related Keywords:	radius scopethis standard roundness error geometrical product specifications radius variation roundness
Related Topics:	Several Aperture Measurement Methods semi-quantitative products Random error error method Measurement and Error There are several quantitative methods instrument error error Several errors of measurement Several methods of quantification wrong Measurement error range Measurement error range Several measuring methods of aperture Measurement Error Regulations How to measure roundness error Geometry There are several methods of quality measurement variable error Measuring method of roundness error Systematic Error and Random Error semi-quantitative full quantitative Roundness error measurement method There are several measurement methods gb t7235-2004 gb t7235 How to measure roundness error Roundness error How to measure particle size Technical Measure Variables Roundness error GBT7235 GB/T 7235-1987 GB/T 7235-2004 Burette measurement error gps altitude error Product weight error Drainage radius flow method Product length error How to measure the inner diameter of a circle gb7235 gb7235-2004 Quantitative loop error range There are several ways to measure bit errors gb/t7235 gb/t 7235

《GB/T 7235-2004产品几何量技术规范（GPS）评定圆度误差的方法半径变化量测量》由TC240（全国产品几何技术规范标准化技术委员会）归口，主管部门为国家标准化管理委员会
本标准规定了用接触式（触针式）仪器测量半径变化量评定圆度误差的方法和仪器的一般特性。本标准适用于在给定条件下，经轮廓转换，以下列任一圆心来评定零件轮廓的圆度误差。---最小区域圆圆心；---最小二乘圆圆心；---最小外接圆圆心；---最大内接圆圆心。

Scope

This standard specifies the method for measuring the radius variation and the general characteristics of the instrument for evaluating the roundness error with a contact (stylus) instrument. This standard is applicable to evaluate the roundness error of the part contour with any of the following centers after contour conversion under given conditions. ——the center of the smallest area circle; ——the center of the least square circle; ——the center of the smallest circumscribed circle; ——the center of the largest inscribed circle.

More samples: GB 50021-2001(2009) QC/T 942-2021 DL/T 5154-2012

Sample only — not a preview of GB/T 7235-2004

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