NEWS

Source: Link Testing Instruments Co.,Ltd.

I. Core Content of the Standard

 

GB/T 4857.4-2008, "Packaging - Basic Tests for Transport Packages - Part 4: Compression and Stacking Test Methods Using a Compression Testing Machine," is the core standard for evaluating the compressive performance of transport packaging. This standard specifies the use of a compression testing machine to apply a vertical load to packaging (such as refrigerator boxes) to simulate the pressure environments encountered during actual transportation and storage, thereby verifying their structural strength and protective capabilities.

 

Scope of Application: 

Corrugated cardboard boxes, wooden boxes, and other transport packaging containers for refrigerators and other household appliances.

Compressive strength, stacking strength, and compressive resistance in specific directions (such as corners) must be tested.

 

 II. Test Standards

 

GB/T 4857.4-2008

"Packaging - Basic Tests for Transport Packages - Part 4: Compression and Stacking Test Methods Using a Compression Testing Machine" 

GB/T 22939.6-2008

"Packaging for Household and Similar Electrical Appliances - Part 6: Particular Requirements for Refrigerators" (Special Standard for the Household Appliance Industry)

ISTA 3A/3B/3E

Transport packaging test standards recommended by the International Safe Transit Association (ISTA).

 

 

III. Core Steps in Compression Strength Measurement

This standard primarily uses the KYJ-10K carton compression testing machine to simulate actual stacking pressure. The specific process includes: 

1. Sample Preconditioning: Condition the sample under standard temperature and humidity conditions to minimize the impact of environmental fluctuations on the results.

 

2. Positioning and Loading: Place the carton at the center of the press platen and apply pressure at a specified speed (10 mm/min).

 

3. Data Recording: Continue applying pressure until the package collapses or reaches the predetermined load, recording the maximum compressive force and deformation curve.

 

4. Stacking Simulation: The load can also be set based on parameters such as stacking height and product weight, allowing for long-term pressure testing to verify the durability of the package.

 

IV. Advantages of KYJ-10K from Link Testing

Link Testing Co., Ltd. has developed the professional KYJ-10K carton compression testing machine in accordance with the GB/T 4857.4-2008 standard. This equipment strictly adheres to standard requirements and has the following features:

Carton Compression Tester KYJ-10K

1. High-precision measurement system, ensuring load measurement accuracy meets standard requirements;

 

2. Automated operation process, reducing human error;

 

3. Supports multiple test modes, including compressive strength, stacking, and fixed value tests;

 

4. Clear data recording facilitates result analysis;

 

Summary: 

Through scientific testing methods, companies can more accurately understand the performance of packaging boxes, providing reliable assurance for refrigerator transportation safety.

For more details please visit www.linktesting.org