JB/T 54265-1999
Product Quality Grading for Measuring Tools and Instruments - Float-type Pneumatic Micrometer (Internal Use)
量具量仪产品质量分等 浮标式气动量仪（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 float-type pneumatic micrometers (hereinafter referred to as pneumatic micrometers) with scale divisions of 0.2 μm, 0.5 μm, 1.0 μm, 2.0 μm, and 5.0 μm. This standard applies to the evaluation of quality grades through sampling inspection of pneumatic micrometers produced in single or small batches.
本标准规定了分度值为0.2μm、0.5μm、1.0μm、2.0μm、5.0 μm 的浮标式气动量仪（以下简称气动量仪）的合格品、一等品、优等品的各项质量指标。本标准适用于单件或小批生产的气动量仪抽样检查质量等级的评定。
Normative References
Keywords
Application Summary AI generated
This standard is used by manufacturers of measuring tools and instruments, as well as quality inspection agencies, to evaluate the quality grades of float-type pneumatic micrometers. It sets specific technical indicators for qualified, first-class, and premium products, helping producers control product quality and providing users with a basis for selecting appropriate product grades. Its importance lies in unifying the quality evaluation method for pneumatic micrometers, ensuring consistency and reliability of product performance.
该标准由量具量仪制造商和质量检验机构使用，用于对浮标式气动量仪进行质量等级评定。它通过设定合格品、一等品和优等品的具体技术指标，帮助生产方控制产品质量，并为用户选择合适等级的产品提供依据。该标准的重要性在于统一了气动量仪的质量评价方法，确保了产品性能的一致性和可靠性。
AI Summary AI generated
This standard specifies quality grading requirements for float-type pneumatic micrometers, covering products with scale divisions from 0.2 μm to 5.0 μm. It classifies products into three grades: qualified, first-class, and premium, each with different requirements for key indicators such as indication error, indication variability, and stability. Additionally, it specifies Class B and Class C defect requirements for appearance, air leakage, knob flexibility, scale clarity, packaging, etc. First-class and premium products must also pass vibration, high/low temperature, impact, and simulated measurement tests. Grade evaluation is conducted according to JB/T 54247.2.
本标准规定了浮标式气动量仪的质量分等要求，涵盖分度值0.2μm至5.0μm的产品。标准将产品分为合格品、一等品和优等品三个等级，每个等级对示值误差、示值变动性、稳定度等关键指标有不同要求。此外，还规定了外观、漏气、旋钮灵活性、刻度清晰度、包装等B类和C类缺陷要求。一等品和优等品还需通过振动、高低温、冲击和模拟测量等试验验证。等级评定按JB/T 54247.2执行。
Key Sentences extracted from text
本标准规定了分度值为0.2μm、0.5μm、1.0μm、2.0μm、5.0 μm 的浮标式气动量仪（以下简称气动量仪）的合格品、一等品、优等品的各项质量指标。
在基本放大倍数下，有效示值范围内的示值误差和示值变动性应不大于表1 的规定。
气动量仪外表面的涂层与镀层应无剥落、生锈等缺陷。
气动量仪应无影响使用性能的漏气。
气动量仪经振幅为0.5 mm，频率为80 Hz，时间为2 h 的振动试验后，其各项技术指标仍应符合4.1~4.3 的规定。
This standard specifies the quality indicators for qualified products, first-class products, and premium products of float-type pneumatic micrometers (hereinafter referred to as pneumatic micrometers) with scale divisions of 0.2 μm, 0.5 μm, 1.0 μm, 2.0 μm, and 5.0 μm.
Under the basic magnification, the indication error and indication variability within the effective indication range shall not exceed the provisions of Table 1.
The coating and plating on the external surface of the pneumatic micrometer shall have no defects such as peeling or rust.
The pneumatic micrometer shall have no air leakage that affects its performance.
After the vibration test with an amplitude of 0.5 mm, frequency of 80 Hz, and duration of 2 h, the pneumatic micrometer's technical indicators shall still comply with the provisions of 4.1 to 4.3.
Standard Timeline
Changes from replaced version:
- 本标准与JB/T 54265—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 54265-94, only re-edited according to relevant regulations.