GB/T 4546-1998 Test method for internal pressure resistance of glass bottles and cans

This standard specifies two test methods for determining the internal pressure resistance of glass bottles and cans. Method A is a test in which a uniform internal pressure is applied for a predetermined time; method B is a test in which the internal pressure is increased at a predetermined constant rate. This standard applies to the internal pressure resistance test of glass bottles and cans. GB/T 4546-1998 Test method for internal pressure resistance of glass bottles and cans GB/T4546-1998 Standard download decompression password: www.bzxz.net

National Standard of the People's Republic of China
GB/T 4546—1998
neq ISO 7458:1989
Glass containers -Internal pressure resistance--Method of test1998 - 01 -16 Issued on December 1, 1998 Implementation Issued by the State Administration of Technical Supervision CB/1:4546-1998 This standard is not equivalent to GB4546-801:1989. This standard specifies the test method A--a test for applying a uniform internal positive force within a predetermined time, and the test method B--a test for increasing the internal pressure according to a predetermined situation. This standard shall be implemented from December 1, 18. This standard shall replace GB4545-84 from the date of its entry into force. This standard was proposed by the China Light Industry General Association. This standard was drafted by the China National Ceramics Standardization Center. This standard was drafted by the Glass Ceramics Research Institute of the China Light Industry General Association. The main drafters of this standard are Qiu Qinjia, Jiao Rongjiang and Zhang Guoxiu. This standard was first issued on June 30, 1984. It was first subscribed on January 16, 1981. Scope
National Standard of the People's Republic of China
Test method for internal pressure resistance of glass bottles and jars
Class eantalners--Interial pressure resistance of testGB/T4546-1998
neqIS07458:1989
Chongqing CB4545-64
This standard specifies a test method for determining the internal pressure resistance of glass bottles and jars. Method A is a test in which a uniform internal pressure is applied within a predetermined time. Method B is a test in which a constant internal pressure is applied at a certain constant speed. This standard is applicable to the internal pressure test of glass bottles and jars. 2 Sampling
The specified number of bottles shall be used for the test. The test bottles shall not be subjected to any other tests that may affect the internal pressure test results and the performance and specifications of the test. 3 Test method
3.1 Method A - Test with a uniform internal pressure during the pre-test period. 3.1.1 Equipment
The equipment shall meet the following requirements:
3.1.1.1 The legs and mouth of the test bottles shall be fixed together and the test shall be carried out. 3.1.1.2 In order to ensure the quality of the acid, there must be an elastic break ring between the pressure head and the sealing surface. 3.1.1.3 There shall be a 0.4±0.1MPa/a (4±1 bar/s>, and can continue to maintain the pressure during the test.
, the product reaches room temperature, and then pours into water that is 5℃ the same as room temperature. According to the purpose of the potential test, any of the following test methods can be selected. 3.1.2.1, the internal test pressure reaches the predetermined value and maintains a constant pressure of 60°C or above. However, the device should have a method to calculate the correction pressure value so as to obtain a value equal to 60°C. 3.7.2.2 Incremental test
Following the test method in 3.1.2.1 above, the pressure is increased by 0.1 or 0.8 MPa (1 bar or 2 bar) until the bottle penetration rate reaches 50% or 100%.
3.1.3 Test report
The test report should include the following content: a) the national standard number; b) the sample specifications and sampling method; c) the number of samples taken from each tool; d) the type of test method, i.e., penetration test (3.1.2.1) or incremental test (3.1.2.2). 3.1.4 Test results
Approved by the State Administration of Technology on January 16, 1998
Implemented on December 1, 1998
3.1.4.1 Test according to 3.1.7.1 CH/T4546-1998
Test 10 The positive force used and the number of bottles that broke are based on the positive force when the skin breaks. 3.1.4.2 Incremental test according to 3.1.2.2: The pressure at the first observation and the number of plates that broke at this pressure, the pressure at which the specified percentage is screened, are expressed as the nearest 11MPa (.1bar-): the average pressure and the standard pressure.
3.2 Method 1 - Test with a predetermined constant rate of increase in the internal pressure. 3.2.1 Equipment
The test equipment must meet the following requirements:
3.2.1.1 The test bottle should be tested in accordance with the requirements of the test bottle. 3.2.1.2 During the test, there must be an elastic seal between the pressure valve and the mating surface to protect the pressure medium. 3.2.1.3 It should have a device to increase the hydraulic pressure at a rate of 0.4-0.1MPs/g (4:1bar/s) until the pressure is broken or the predetermined index is reached. The shear recovery of the system is about 10%.
3.2.1.4 The instrument should have a device that can indicate the overflow rate of the bottle, the pressure is low or the test object reaches the maximum pressure value. 3.2.1.5 The instrument should have a device that indicates the relationship between constant rate of pressurization and fixed time limit of pressure holding. Note: When the pressure test machine is used, the actual pressure is the same as that of the normal pressure test machine: Pe = 1.38 re, 1. 1783
Wherein, —--Anti-pressure formula, MmbzxZ.net
3.2.2 Test steps
Raise the sample to room temperature as soon as possible, then add water with a temperature difference of 5% from room temperature. On the day of the test, choose any of the following test methods. 3.2.2.1 Pass test:
Raise the test pressure at a rate of C.4±u.1MPa/a (4±1bar/s) until the selected pressure value is reached. 3.2.2.2 Destruction test
Add the test pressure at a rate of 0.1MPa/(4±1bar/s) as specified in C.4 until all the bottle screens are broken. 3.2.3 Test report
The test report should include the following contents:
a) Chinese national standard number:
b) Specifications and sampling of sample points: force method
) Number of samples taken from the prepared mold;
d) Type of test method. That is, through-test (3.2.2.1> or destructive test (3.2.2.2): 3.2.4 Test results
3.2.4.1 Test results of 3.2.2.1: Determine the force used for the test and the number of bottles that rupture and the corresponding pressure at the time of rupture. 3.2.4.2 Destructive test according to 8.2.2.2; the force at the first rupture and the number of bottles that rupture under this force; the pressure required to reach the rated percentage. Expressed to the nearest 0.1MPa (0.1bar): average rupture pressure and standard tolerance.
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