JB/T 54288-1999
Product Quality Grading for Measuring Tools and Instruments - Electronic Digital Display Depth Calipers (Internal Use)
量具量仪产品质量分等 电子数显深度卡尺（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 depth calipers. This standard is applicable to the quality grade evaluation of batch-produced electronic digital display depth calipers (hereinafter referred to as depth calipers).
本标准规定了电子数显深度卡尺的合格品、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深度卡尺（以下简称深度尺）质量等级的评定。
Normative References
Keywords
Application Summary AI generated
Manufacturers and quality inspection agencies use this standard to evaluate the quality grade of electronic digital display depth calipers. They classify products based on indicators such as indication error, cleanliness, and life test results. This standard ensures consistent product quality and provides a basis for production control and user selection.
电子数显深度卡尺的制造商和质检机构使用本标准来评定产品的质量等级。他们依据本标准中的各项指标，如示值误差、清洁度和寿命试验结果，对产品进行分级。本标准确保了深度卡尺的质量一致性，为生产控制和用户选型提供了依据。
AI Summary AI generated
This standard JB/T 54288-1999 specifies quality grading requirements for electronic digital display depth calipers, including three grades: qualified, first-class, and premium. It details indicators for each grade in terms of indication error, appearance, interaction, hardness, surface roughness, flatness, indication variability, drift, working current, response speed, marking, cleanliness, life test, fault-free time, and button test. Grade evaluation follows JB/T 54247.2.
本标准JB/T 54288-1999规定了电子数显深度卡尺的质量分等要求，包括合格品、一等品和优等品三个等级。标准详细列出了各等级在示值误差、外观、相互作用、硬度、表面粗糙度、平面度、示值变动性、漂移、工作电流、响应速度、标志、清洁度、寿命试验、无故障时间和按钮试验等方面的具体指标。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深度卡尺的合格品、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。
深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。
深度尺经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%。
深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 depth calipers.
The indication error shall not exceed the provisions of Table 1.
The slider of the depth caliper shall move smoothly along the beam without sticking or looseness, and the button shall be flexible and reliable.
After 50,000 life tests, the indication error of the depth caliper shall not exceed the specified requirements, and the pass rate shall be no less than 67%.
The grade evaluation of depth caliper 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 54288—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 54288-94, only re-edited according to relevant regulations.