JB/T 54289-1999
Product Quality Grading for Measuring Tools and Instruments - Electronic Digital Display Height Gauge (Internal Use)
量具量仪产品质量分等 电子数显高度卡尺（内部使用）
Catalogue
前言 → 1 范围 → 2 引用标准 → 3 合格品 → 4 一等品 → 5 优等品 → 6 等级评定 Foreword → 1 Scope → 2 Normative References → 3 Qualified Product → 4 First-Class Product → 5 Premium Product → 6 Grade Evaluation
Scope
This standard specifies the quality indicators for qualified products, first-class products, and premium products of electronic digital display height gauges. This standard is applicable to the quality grade evaluation of batch-produced electronic digital display height gauges (hereinafter referred to as height gauges).
本标准规定了电子数显高度卡尺的合格品、一等品和优等品的各项质量指标。本标准适用于成批生产的电子数显高度卡尺（以下简称高度尺）质量等级的评定。
Normative References
Keywords
Application Summary AI generated
Manufacturers of measuring tools, quality inspection agencies, and users apply this standard to evaluate the quality grade of electronic digital display height gauges. It defines specific criteria for qualified, first-class, and premium products, enabling producers to control quality and providing a basis for acceptance by purchasers. This standard is crucial for ensuring the accuracy, reliability, and service life of height gauges.
该标准由量具量仪制造企业、质量检验机构和用户使用，用于对电子数显高度卡尺进行质量等级评定。它通过设定合格品、一等品和优等品的具体指标，帮助生产方控制产品质量，并为采购方提供验收依据。该标准对确保高度尺的精度、可靠性和使用寿命具有重要意义。
AI Summary AI generated
This standard JB/T 54289-1999 specifies quality indicators for qualified, first-class, and premium products of electronic digital display height gauges, applicable to batch production quality grade evaluation. It details requirements for various defect categories (A, B, C), including indication error, appearance, interaction, hardness, surface roughness, and parallelism. First-class and premium products impose stricter criteria on cleanliness, life tests, and failure-free time. Grade evaluation follows JB/T 54247.2.
本标准JB/T 54289-1999规定了电子数显高度卡尺的合格品、一等品和优等品的质量指标，适用于成批生产的高度尺质量等级评定。标准详细列出了各类不合格项（A、B、C类）的具体要求，包括示值误差、外观、相互作用、硬度、表面粗糙度、平行度等。一等品和优等品在清洁度、寿命试验、无故障时间等方面有更严格的要求。等级评定依据JB/T 54247.2进行。
Key Sentences extracted from text
本标准规定了电子数显高度卡尺的合格品、一等品和优等品的各项质量指标。
示值误差应不大于表1的规定。
高度尺的尺框应能沿尺身平稳移动，无卡滞和松动现象，按钮应灵活可靠。
高度尺经50000次寿命试验后，示值误差应不超过规定的要求，其合格率不小于67%。
高度尺产品的等级评定按照JB/T 54247.2的规定进行。
This standard specifies the quality indicators for qualified products, first-class products, and premium products of electronic digital display height gauges.
The indication error shall not exceed the provisions of Table 1.
The slider of the height gauge shall move smoothly along the beam without sticking or looseness, and the buttons shall be flexible and reliable.
After 50,000 cycles of life test, the indication error of the height gauge shall not exceed the specified requirements, and the pass rate shall be no less than 67%.
The grade evaluation of height gauge products shall be carried out according to the provisions of JB/T 54247.2.
Standard Timeline
Changes from replaced version:
- 本标准与JB/T 54289—94的技术内容一致，仅按有关规定重新进行了编辑。
- The technical content of this standard is consistent with JB/T 54289-94, only re-edited according to relevant regulations.