JB/T 53290-1999
Low Temperature Pump - Product Quality Grading (Internal Use)
低温泵 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 Foreword → 1 Scope → 2 Normative References → 3 Product Quality Grades → 4 Test and Inspection Methods → 5 Sampling and Evaluation Methods
Scope
This standard specifies the quality grades, test and inspection methods, and sampling and evaluation methods for low temperature pump products. This standard applies to low temperature pumps.
本标准规定了低温泵产品的质量等级、试验与检验方法和抽样、评定方法。本标准适用于低温泵。
Normative References
Keywords
Application Summary AI generated
Manufacturers and quality inspection agencies use this standard to grade low temperature pumps into qualified, first-class, or premium quality levels. It provides unified test and inspection methods to help users evaluate and select reliable products. This standard is essential for ensuring the performance and reliability of low temperature pumps.
低温泵制造商和质检机构使用本标准来对产品进行质量分等，确保产品达到合格品、一等品或优等品的要求。它通过规定统一的试验和检验方法，帮助用户评估和选择可靠的产品。该标准对于保证低温泵的性能和可靠性至关重要。
AI Summary AI generated
This standard JB/T 53290-1999 specifies the quality grading requirements for low temperature pump products, including three grades: qualified, first-class, and premium. It details key assessment items (such as flow rate, head, NPSH, efficiency, vibration, noise, etc.) along with their corresponding technical requirements and test methods. Additionally, the standard provides sampling and evaluation methods for batch products to ensure consistency and reliability. It is applicable to the production and quality control of low temperature pumps.
本标准JB/T 53290-1999规定了低温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（如流量、扬程、汽蚀余量、效率、振动、噪声等）及其对应的技术要求和试验方法。同时，标准还规定了批量产品的抽样和评定方法，以确保产品质量的一致性和可靠性。该标准适用于低温泵的生产和质量控制。
Key Sentences extracted from text
本标准规定了低温泵产品的质量等级、试验与检验方法和抽样、评定方法。
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GB/T 3215、JB/T 2727 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）。
This standard specifies the quality grades, test and inspection methods, and sampling and evaluation methods for low temperature pump products.
Products are divided into three grades: qualified product, first-class product, and premium product, based on quality level and use value.
Products shall comply with the provisions of GB/T 3215 and JB/T 2727, wherein the main assessment items and requirements shall comply with the provisions of Table 1, and the assessment items, indicators and requirements for evaluating product quality grades shall comply with the provisions of Table 2.
For batch products, the quality grade of individual products shall first be evaluated; the quality grade of an individual product shall meet the requirements of all assessment items for that grade, otherwise it shall be graded according to the lowest indicator achieved.
When using the sampling inspection method, the batch of products can be evaluated as reaching a certain grade (qualified product, first-class product, or premium product) 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:
- 删除了“千小时效率平均降低值”考核项目
- 将“流量、扬程、汽蚀余量、润滑油渗漏、清洁度、泵用材料、涂漆和外观及包装”主要考核项目及要求从表2中移出列入表1中
- Deleted the assessment item 'average efficiency reduction per thousand hours'
- Moved the main assessment items and requirements for 'flow rate, head, NPSH, lubricating oil leakage, cleanliness, pump materials, painting and appearance, and packaging' from Table 2 to Table 1