JB/T 53299-1999
Single-stage Water-ring Vacuum Pump - Product Quality Grading (Internal Use)
单级水环真空泵 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 试验与检验方法 → 5 抽样、评定方法 → 附录A → 附录B Foreword → 1 Scope → 2 Normative References → 3 Product Quality Grades → 4 Test and Inspection Methods → 5 Sampling and Evaluation Methods → Annex A → Annex B
Scope
This standard specifies the quality grades, test and inspection methods, and sampling and evaluation methods for single-stage water-ring vacuum pump products. This standard applies to single-stage water-ring vacuum pumps for suction of gases.
本标准规定了单级水环真空泵产品的质量等级、试验与检验方法和抽样、评定方法。本标准适用于抽吸气体的单级水环真空泵。
Normative References
Keywords
Application Summary AI generated
This standard is used by pump manufacturers, quality inspection agencies, and customers to grade and accept single-stage water-ring vacuum pumps. It defines specific criteria for qualified, first-class, and superior products, ensuring reliable performance and consistent quality. It plays a key role in regulating the market and improving product quality.
该标准由泵制造企业、质量检验机构和用户使用，用于对单级水环真空泵进行质量等级评定和验收。它通过规定合格品、一等品和优等品的具体指标，确保产品性能可靠、质量可控。该标准对规范市场、提升产品质量水平具有重要意义。
AI Summary AI generated
This standard JB/T 53299-1999 specifies the quality grading requirements for single-stage water-ring vacuum pumps, including three grades: qualified, first-class, and superior. It details key assessment items such as maximum air capacity, ultimate vacuum, efficiency, vibration, and noise, along with corresponding test and inspection methods. Sampling and evaluation methods are also provided to ensure product quality consistency. The standard applies to single-stage water-ring vacuum pumps for gas suction, offering a unified basis for manufacturing, inspection, and user acceptance.
本标准JB/T 53299-1999规定了单级水环真空泵产品的质量分等要求，包括合格品、一等品和优等品三个等级。标准详细列出了主要考核项目如最大气量、极限真空度、效率、振动、噪声等，并给出了相应的试验与检验方法。此外，还规定了抽样和评定方法，确保产品质量的稳定性和一致性。该标准适用于抽吸气体的单级水环真空泵，为生产、检验和用户验收提供了统一依据。
Key Sentences extracted from text
产品根据质量水平和使用价值分为合格品、一等品和优等品三个等级。
产品应符合JB/T 7255 的规定，其中主要考核项目及要求应符合表1 的规定，评定产品质量等级的考核项目、指标和要求应符合表2 的规定。
批量产品应首先进行单个产品的质量等级评定，判定单个产品的质量等级应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。
采取全数检查方法时，当所有产品达到合格品时，该批产品才能评为合格品；当达到一等品或优等品的数量占总数70%以上，且其余产品达到合格品时，该批产品才能评为一等品或优等品。
采取抽样检查方法时，可按JB/T 8687 规定的合格判定数Ac（或A1、A2）和不合格判定数Re（或R1、R2）评定该批产品达到某一等级（合格品、一等品或优等品）。
Products are divided into three grades: qualified product, first-class product, and superior product, based on quality level and use value.
Products shall comply with the provisions of JB/T 7255, with the main assessment items and requirements conforming to Table 1, and the assessment items, indicators, and requirements for evaluating product quality grades conforming to Table 2.
For batch products, the quality grade of individual products shall be evaluated first; the quality grade of a single product shall meet all assessment items of that grade, otherwise it shall be graded according to the lowest indicator achieved.
When using full inspection, the batch can only be rated as qualified if all products reach the qualified grade; if the number of first-class or superior products accounts for more than 70% of the total and the remaining products reach the qualified grade, the batch can be rated as first-class or superior.
When using sampling inspection, the batch can be evaluated as reaching a certain grade (qualified, first-class, or superior) according to the acceptance number Ac (or A1, A2) and rejection number Re (or R1, R2) specified in JB/T 8687.
Standard Timeline
Changes from replaced version:
- 增加了“气量”一项列入表2中
- 删除了“性能保持性”及“附录B（性能保持性计算）”
- 将产品标准中规定的最大气量、极限真空度、润滑油渗漏、清洁度、泵用材料、涂漆和外观及包装等主要考核项目及要求列入表1中
- Added 'air capacity' item in Table 2
- Deleted 'performance retention' and 'Annex B (Performance Retention Calculation)'
- Moved main assessment items and requirements such as maximum air capacity, ultimate vacuum, lubricating oil leakage, cleanliness, pump materials, painting and appearance, and packaging into Table 1