JB/T 51226-1999 Chicken Drinker Product Quality Classification JB/T51226-1999 Standard Download Decompression Password: www.bzxz.net

Mechanical Industry Standard of the People's Republic of China
JB/T51226—1999
Chicken Drinkers
Product Quality Classification
(Internal Use)
Published on 1999-12-30
National Bureau of Machinery Industry
Implemented on 2000-06-01
JB/T51226—1999
This standard is a revision of JB/T51226.1~51226.394 "Product Quality Classification of Chicken Nipple and Cup Drinkers". Compared with JB/T51226.1~51226.394, this standard has some changes in the following technical contents: 1. The cup drinkers are divided into valve handle type and floating spout type, and the nipple drinkers are divided into gravity seal type and spring seal type. 1. Test water pressure:
Nipple type: 2kPa, 3kPa, 4kPa. Cup type: 30kPa, 70kPa.
This standard replaces JB/T51226.1~51226.394 from the date of implementation. This standard is proposed and managed by the National Agricultural Machinery Standardization Technical Committee. The responsible drafting units of this standard: China Agricultural Mechanization Science Research Institute, Beijing Fuhai Plastic Processing Factory. The main drafters of this standard: Qi Huichang, Qi Xingfu, Li Yufu, Zhao Junxia 1 Scope
Machinery Industry Standard of the People's Republic of China
Product Quality Grading
Chicken Drinkers
(Internal Use)
JB/T51226-1999
Replaces JB/T512261~51226.394
This standard specifies the quality indicators, test methods, and inspection rules for nipple and cup drinkers for chickens. This standard applies to the quality grading of nipple and cup drinkers for chickens. 2 Referenced Standards
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard is published, the versions shown are valid. All standards will be revised, and parties using this standard should explore the possibility of using the latest versions of the following standards. GB/T2828——1987
JB/T 7718—1995
JB/T7720—1995
3 Quality indicators
3.1 Classification
Batch inspection counting sampling procedures and sampling tables (applicable to inspection of continuous batches) Chicken cup drinkers
Chicken nipple drinkers
Nipple drinkers are divided into gravity seal type and spring seal type. Cup drinkers are divided into valve handle type and floating spout type. 3.2 Performance indicators
Should meet the requirements of Table 1.
Valve opening force
Sealing
Water leakage rate
mL/min
min/drop
Qualified products
0.07-0.25
17~100
200-290
0.13-0.19
100-200
≥ 15
Qualified products
600-700
350-450
500-600
300-350
Qualified products
0.10-0.65
160-260
Note: In the nipple type column, ★ indicates the gravity natural seal type index, and those without ★ indicate the spring seal type index. 3.3 The surface of the cup and valve body should be flat and smooth, without defects such as cracks and pinholes. 3.4 The valve stem should move flexibly and without stagnation. The cup tongue should be firmly and reliably fixed. Approved by the State Bureau of Machinery Industry on December 30, 1999
0.10-0.30
160-260
≥ 15
2000-06-01 Implementation
4 Test methods
4.1 Basic requirements
JB/T51226-1999
4.1.1 From the time the sample is taken to the end of the work, the sample or parts shall not be replaced. 4.1.2 During the test, if any abnormal situation occurs, the cause shall be found out in time and necessary measures shall be taken. 4.1.3 Before the test, the manufacturer shall provide necessary product drawings and technical documents. 4.2 Test conditions
4.2.1 The instruments, equipment, gauges and measuring tools used in the test must be within the validity period of the verification, and must be checked and calibrated before the test. 4.2.2 Nipple-type drinking fountains shall be tested under three water pressures of 2, 3 and 4 kPa, and 4.2.3 Cup-type drinking fountains shall be tested under two water pressures of 30 and 70 kPa. 4.3 Test items
4.3.1 Surface quality test of cup (valve) body. 4.3.2 Flexibility test of valve stem.
4.3.3 Fixation and flexibility test of cup tongue.
4.3.4 Performance test.
4.4 Test method
4.4.1 Surface quality of cup (valve) body
Visually inspect the appearance, then fill the cup with water and place it on a flat surface to check for leakage. 4.4.2 Flexibility of valve stem and cup tongue
Gently touch the valve stem or cup tongue with your hand, and it should meet the requirements of 4.3. 4.4.3 Performance items
Perform according to the provisions of 5.1.2, 5.1.3, 5.1.4 in JB/T7720-1995 and 5.2, 5.3, 5.4, 5.5 in JB/7718-1995. 4.4.4 Water leakage rate
Randomly select 100 samples from the sample library and measure the sealing performance. Those that fail to meet the requirements in Table 1 are considered to be leaking. The water leakage rate is calculated according to formula (1): Water leakage rate_Number of water samples×100%
5 Inspection rules
5.1 Classification of unqualified items
Drinking fountain products should be inspected and judged according to the counting sampling inspection procedure principles specified in GB/T2828, the classification of unqualified items listed in Table 2 and the sampling inspection plan in Table 3.
5.1.2 Any item that does not meet the requirements of Chapter 3 of this standard and relevant standards, drawings and technical documents is considered unqualified. 5.1.3 Unqualified items are divided into two categories, A and B, according to their impact on the product. Category A is for items that have a significant impact on the product; Category B is for items that have a greater impact on the product.
5.2 Sampling method
5.2.1 Sampling inspection procedure According to the normal sampling plan specified in GB/T2828, the inspection level S-4 is adopted. 5.2.2 Random sampling is adopted, and random sampling is conducted from the products produced by the factory within the past year. The sampling parent quantity should be no less than 100, 8 complete machines are sampled, and 8 parts and components are sampled. Samples can be drawn from the finished product or semi-finished product warehouse, and this limit does not apply when sampling in the sales department. The samples drawn should be qualified products of the corresponding grade.
5.3 Evaluation rules
JB/T51226-1999
5.3.1 Products are sampled and judged according to the required grades in accordance with the provisions of Table 3. The qualified quality level AQL, qualified judgment number Ac and unqualified judgment number Re in the table are calculated by the point method (i.e. the number of unqualified items). 5.3.2 The item-by-item assessment is adopted. When the number of unqualified items in each category in the sample is less than or equal to the qualified judgment number Ac, the category is judged as qualified. The inspection should make qualified and unqualified judgments according to various sampling inspection plans. The grade that is qualified in both categories A and B is determined as the product grade. Table 2
Unqualified name
Sealing
Water leakage rate
Cup (valve) body has cracks and pinholes
Valve opening force
Valve opening torque
Cup body surface is flat and smooth
Valve stem and cup tongue are flexible and reliable
Item category
Number of samples
Inspection level
Qualified products
Nipple type
Valve stem type
According to Table 2
Floating spout type
Mechanical industry standard
Chicken waterer product quality classification
(internal use)wwW.bzxz.Net
JB/T51226-1999
Published and issued by the Mechanical Science Research Institute
Printed by the Mechanical Science Research Institute
(No. 2 Shouti South Road, Beijing, zip code 100044)*
Format 880×12301/16 Printing sheet 1/2 Number of words 8000First edition in April 2000
First printing in April 2000
Print number 1-500
Price 1000 yuan
No. 99-1575
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