Test intensity refers to the amount of rigor that can characterize the various loads that packages may encounter in the circulation environment. It is an important part of packaging testing. The magnitude of the magnitude of the factors to be determined for each test depends mainly on the factors causing the hazard, the stress resulting from the hazard and the ability of the selected test project to simulate or reproduce the hazards of these stresses, and the safety of the package to be considered second. Reliability.
The factors that need to determine the magnitude of each test are the following items:
1 temperature and humidity control test: temperature, relative humidity, time, pre-drying conditions (if necessary).
2 stacking test: load and its duration, temperature and relative humidity, the number and status of test samples.
3 Vertical impact drop test: drop height, number of impacts, temperature, relative humidity, number and condition of test samples.
4 Horizontal impact test (oblique impact, pendulum impact test): horizontal acceleration, number of impacts, impact surface, additional obstacles (if required), pendulum mass, temperature and relative humidity, number and condition of test samples.
5 Sinusoidal vibration test: frequency (fixed frequency, variable frequency), acceleration or displacement amplitude, test duration, additional load (if required), temperature and relative humidity, number and status of test samples.
6 Pressure test: Maximum load (predetermined value), platen movement speed, temperature and relative humidity, number and condition of test samples.
7 Low-pressure test: pressure and its duration, ambient temperature, and the number of test samples.
8 Stacking test using a press: the applied load and its duration, temperature and relative humidity, the number and status of test samples.
9 Spray test: the amount of spray water and its duration, the number and status of test samples.
10 Rolling test: number of scrolls, number and condition of test samples.
Different test items have different strength values. It is divided into two basic values: test strength and test intensity. The former is based on the purpose of standardization and serialization, and is based on the general distribution process and the typical weight and size of the package based on the amount determined, only the macro instructional significance; the latter is combined with specific product characteristics, specific circulation conditions, If the correction is made to the basic value, if it is not corrected, it will also be the final value of the test intensity, which is also used as the final test strength value for the test. Determine whether the sample is qualified or not, based on the strength of the final value.
Feilang carton design
Bar Stool High Chair,Bar Stool Chair ,Stainless Steel High Chair,Leather Bar Stool Chair
Fixed Office Chairs Co., Ltd. , http://www.nbofficechairs.com