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  2. GB/T 6092-2021 in English
GB/T 6092-2021 in English

GB/T 6092-2021 in English

VALID

Squares

  • Issued on:2021-05-21
  • Implemented on:2021-12-01
  • File Format:PDF
  • Delivery:Via email within 1~3 business days
Price(USD)： $250.00
$243.00
Standard No: GB/T 6092-2021
Document status: VALID
Title in English: Squares
Title in Chinese: 直角尺
Language: English
File Format: Electronic (PDF)
Delivery: Via email within 1~3 business days
Issued on: 2021-05-21
Implemented on: 2021-12-01
Superseding: GB/T 6092-2004 Squares
ICS Classification: 17.040.30-Measuring instruments
Chinese Classification: J42-Measuring tool and instrument
Professional Classification: GB-National Standard
Related Topics: right angle peak
right angle
gb t6092 2004
GBT6092
GBT6092-1985
GB/T 6092-2004
GB/T 6092-2021
square
gbt6092

《GB/T 6092-2021直角尺》由TC132（全国量具量仪标准化技术委员会）归口，主管部门为中国机械工业联合会。


Introduction

Core changes in standards and technological evolution

Technical elements GB/T6092-2004 GB/T6092-2021 Technological improvement
Specification range Including 40mm specifications 50-1600mm Focus on mainstream industrial needs
Base surface requirements Parallelism tolerance Added flatness/straightness tolerance Detection accuracy improved by 30%
Material specifications 4 types of materials Added rock material performance data Expanded applicability of high temperature working conditions

Analysis of the square ruler classification system

The standard divides the accuracy of square ruler into four levels: 00 (highest), 0, 1, and 2. Take the 300mm measuring surface as an example:

  • Grade 00: verticality tolerance ≤4.5μm
  • Grade 0: verticality tolerance ≤9μm
  • Grade 1: verticality tolerance ≤18μm
  • Grade 2: verticality tolerance ≤36μm

Implementation suggestions for typical application scenarios

Case 1: Verticality detection of machine tool guide rails

Use a wide-base square (Grade 00) with an electronic level and follow the following steps:

  1. Equilibrate in an environment at 20±1℃ for 4 hours
  2. First detect the flatness of the base surface (≤2μm)
  3. Use the differential method to eliminate clamping stress

Detailed explanation of key test indicators

Chapter 5 of the standard clearly defines 7 core performance requirements:

Test items Instrument requirements Tolerance calculation formula
Verticality Square ruler calibrator (0.5μm) 1+L/200 (Grade 00)
Flatness Electronic level (0.001mm/m) 0.5×(1+L/250)

More samples: DL/T 368-2010 JC/T 2453-2018 DL/T 5154-2012
Sample only — not a preview of GB/T 6092-2021
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