JB/T 53019-1999
Oil Diffusion Vacuum Pump - Product Quality Grading (Internal Use)
油扩散真空泵 产品质量分等（内部使用）
Catalogue
前言 → 1 范围 → 2 引用标准 → 3 产品的质量等级 → 4 检验规则和评定方法 Foreword → 1 Scope → 2 Normative References → 3 Product Quality Grades → 4 Inspection Rules and Evaluation Methods
Scope
This standard specifies the quality grades, inspection rules and evaluation methods for oil diffusion vacuum pumps. This standard applies to oil diffusion vacuum pump products specified in JB/T 7265 (hereinafter referred to as products).
本标准规定了油扩散真空泵的质量等级、检验规则和评定方法。本标准适用于JB/T 7265 规定的油扩散真空泵产品（以下简称产品）。
Normative References
Keywords
Application Summary AI generated
Manufacturers and quality inspection agencies of oil diffusion vacuum pumps use this standard to grade and inspect products. It helps determine whether a product meets the qualified, first-class, or premium grade, ensuring consistency and reliability in product quality. This standard is important for regulating the market and enhancing product competitiveness.
油扩散真空泵的制造商和质检机构使用本标准来对产品进行质量分等和检验。它帮助确定产品是否达到合格品、一等品或优等品等级，从而确保产品质量的一致性和可靠性。该标准对于规范市场、提升产品竞争力具有重要意义。
AI Summary AI generated
This standard JB/T 53019-1999 specifies the quality grades, inspection rules and evaluation methods for oil diffusion vacuum pumps, applicable to products defined in JB/T 7265. It classifies products into three grades: qualified, first-class, and premium, with specific performance requirements for pumping speed, ultimate pressure, critical backing pressure, backstreaming rate, heating time, and heating power. Inspection uses a single sampling plan with 2 units per batch and an acceptance number of 0. This standard replaces JB/T 53019-92, with main revisions including changes to sampling methods, qualified product indicators, addition of convex cavity pump indicators, and replacement of specific heating power with heating power indicators.
本标准JB/T 53019-1999规定了油扩散真空泵的质量等级、检验规则和评定方法，适用于JB/T 7265中定义的产品。标准将产品分为合格品、一等品和优等品三个等级，并针对抽气速率、极限压力、临界前级压力、泵液返流率、加热时间和加热功率等关键性能指标设定了具体数值要求。检验采用一次抽样方案，每批抽取2台样品，合格判定数为0。该标准替代了JB/T 53019-92，主要修订内容包括修改抽样方法、合格品指标，增加凸腔泵指标，并将比加热功率改为加热功率指标。
Key Sentences extracted from text
本标准规定了油扩散真空泵的质量等级、检验规则和评定方法。
产品根据其质量水平和使用价值分为合格品、一等品和优等品。
各等级的产品均应满足JB/T 7265—1994 中5.7、5.8 的要求，且外观良好。
采用一次抽样方案，每批样本数为2 台，合格判定数为0。
判定产品的质量等级，必须符合该等级全部考核项目的要求，否则按达到的最低一项指标定等级。
This standard specifies the quality grades, inspection rules and evaluation methods for oil diffusion vacuum pumps.
Products are divided into qualified products, first-class products and premium products according to their quality level and use value.
Products of all grades shall meet the requirements of 5.7 and 5.8 in JB/T 7265-1994 and have good appearance.
A single sampling plan is adopted, with a sample size of 2 units per batch and an acceptance number of 0.
To determine the quality grade of a product, it must meet all the assessment items of that grade; otherwise, the grade is determined by the lowest indicator achieved.
Standard Timeline
Changes from replaced version:
- 修改了抽样方法
- 修改了合格品指标
- 增加了凸腔泵指标
- 将比加热功率指标改为加热功率指标
- Modified the sampling method
- Modified the qualified product indicators
- Added indicators for convex cavity pumps
- Changed the specific heating power indicator to heating power indicator