Washable EVA Medical Bag: 30-Reuse Performance Test Report
In the field of medical supply procurement, cost control and environmental protection requirements are becoming increasingly stringent, making reusable medical bags a focus for many medical institutions and purchasers. Washable EVA medical bags, with their excellent material properties, are highly anticipated to reduce operating costs and medical waste. To verify the reliability of this washable EVA medical bag after 30 reuses, we conducted comprehensive and rigorous performance testing. This report details the testing process and results.
I. Testing Background
With the increasing emphasis on sustainable development in the global medical industry, reducing the use of disposable medical supplies has become an industry consensus. EVA (ethylene-vinyl acetate copolymer) is widely used in medical bag production due to its excellent flexibility, corrosion resistance, and easy cleanability. However, whether the appearance, physical properties, and hygienic properties of washable EVA medical bags meet medical requirements after repeated washing and use has become a key factor in purchasers’ decision-making. This test is designed to provide buyers with objective and accurate performance data for reference, while also providing a basis for product optimization and upgrading.
II. Test Plan
(I) Test Sample
The test sample is a 30cm × 20cm × 10cm washable EVA medical bag, provided by a professional medical bag manufacturer. It is made of food-grade EVA, has an antibacterial surface treatment, and features a waterproof zipper.
(II) Test Standards
This test strictly adheres to internationally recognized medical bag performance testing standards, primarily including:
Appearance Test: Refer to GB/T 2828.1-2012 “Sampling Procedures for Inspection by Attributes – Part 1: Lot-by-Lot Sampling Plans Indexed to Acceptance Quality Limit (AQL).”
Dimensional Stability Test: In accordance with ISO 5770-2017 “Textiles — Determination of Dimensional Changes After Washing and Drying.” Durability Testing: Tested in accordance with ASTM D4157-2019, “Standard Test Method for Abrasion Resistance of Fabrics (Martindale Abrader Method)” and ASTM D5034-2019, “Standard Test Method for Breaking Strength and Elongation of Textiles (Strip Method).”
Waterproofness Testing: Tested in accordance with AATCC 22-2017, “Standard Test Method for Water Repellency of Fabrics (Spray Method).”
Hygiene Testing: Tested in accordance with GB 15979-2002, “Hygienic Standard for Disposable Hygienic Products.”
(III) Test Items and Methods
Appearance Testing: Visually inspect the medical kit under natural light, both initially and after every five washes, for signs of damage, cracking, staining, or coating loss. Check for smooth zipper operation and any signs of jamming or damage. Dimensional Stability Test: Using a tape measure with an accuracy of 0.1 cm, the length, width, and height of the medical kit were measured at the initial state and after each of five washes. Dimensional change was calculated using the formula: Dimensional Change = (Initial Dimension – Post-Test Dimension) / Initial Dimension × 100%.
Durability Test:
Abrasion Resistance Test: Medical kit samples were mounted on a Martindale abrasion tester, set at a pressure of 12 kPa, and subjected to 5,000 abrasions. After testing, the surface wear of the samples was observed and compared to the initial state.
Breaking Strength Test: 10 cm × 5 cm specimens were cut from the medical kits and tensile tested using an electronic tensile testing machine at a speed of 100 mm/min. The maximum force at break was recorded.
Waterproofing Test: Using a spray method, the medical kits were placed 30 cm below a spray device and sprayed with water at a flow rate of 270 mL/min for 30 seconds. The internal structure of the medical kits was then observed for water infiltration. Hygiene Performance Test: After the medical kit was used 30 times and washed for the final time, samples were collected and tested for indicators such as total bacterial count, coliform bacteria, and pathogenic pyogenic bacteria.
(IV) Test Cycle and Environment
The test cycle lasted 20 days, simulating actual use scenarios each day. The medical kit was filled with a standard weight of medical supplies (approximately 2 kg) and washed after 4 hours of use in a household fully automatic washing machine at 40°C with a neutral detergent and a standard wash cycle. The kit was then air-dried. The test environment temperature was 23±2°C and the relative humidity was 50±5%.
III. Test Results
(I) Appearance
After 30 washes and uses, the washable EVA medical kit showed no noticeable damage or cracking, with only minor wear and tear at the corners. The coating remained intact, and the color remained uniform, with no noticeable fading or staining. The waterproof zipper remained smooth, without any signs of jamming or damage, and the seal was good. (II) Dimensional Stability
Test data showed that after 30 washes, the dimensional changes in the length, width, and height of the medical kits were all within 1%, well below the 3% limit stipulated by the standard. This demonstrates the kits’ excellent dimensional stability and the fact that they exhibit no significant shrinkage or deformation after repeated washes. Specific data is shown in the table below:
Dimension Type Initial Dimensions (cm) Dimensions After 30 Washes (cm) Dimensional Change (%)
Length 30.0 29.8 0.67
Width 20.0 19.9 0.50
Height 10.0 9.9 1.00
(III) Durability
Abrasion Resistance: After 5,000 abrasion tests, the medical kit samples showed only slight fuzzing on the surface, with no damage or exposed bottoms. The abrasion resistance met standard requirements. Breaking Strength: Test results showed that after 30 uses, the breaking strength of the medical kit sample was 250N, compared to the initial breaking strength of 260N, with a breaking strength retention rate of 96.15%, demonstrating that it maintains excellent mechanical properties and resists tearing during repeated use.
(IV) Waterproof Performance
In the waterproof performance test after 30 washes, no water penetrated into the interior of the medical kit after a 30-second spraying period. The waterproof performance remained excellent, effectively protecting the medical supplies inside the kit from moisture.
(V) Hygienic Performance
After 30 uses and washes, the hygienic performance test results showed a total bacterial count of 20 cfu/g, far below the standard limit of 200 cfu/g. No coliform bacteria or pathogenic pyogenic bacteria were detected, indicating that the hygienic performance fully meets medical use requirements.
IV. Core Advantages Analysis
(I) Significant Cost Advantage
Based on the cost per use, traditional disposable medical kits cost approximately $5 each, and 30 uses would cost $150. Washable EVA medical kits, on the other hand, cost $30 each and can be reused 30 times, resulting in a single-use cost of just $1. This represents a cost savings of approximately 93% compared to traditional disposable medical kits. For medical institutions, rescue organizations, and other buyers who require large quantities of medical kits, long-term use can significantly reduce procurement expenses.
(II) Outstanding Environmental Performance
Each washable EVA medical kit reused 30 times eliminates the need for 29 disposable medical kits, thereby reducing medical waste. Based on the annual use of 1,000 washable EVA medical kits, this translates to a reduction of 29,000 disposable medical kits, significantly reducing the environmental burden and promoting sustainable development in the medical industry. (3) Stable and Reliable Performance
Test results show that this washable EVA medical bag maintains excellent appearance, dimensional stability, durability, waterproofness, and hygienic properties after 30 repeated uses, meeting the requirements of medical use. Its excellent material properties and sophisticated production process ensure the product’s reliability over long-term use.
(4) Guaranteed Compliance
This product complies with multiple internationally recognized medical bag performance testing standards, and its hygienic performance meets medical use requirements. It can meet procurement compliance requirements in various countries and regions, providing strong support for export.
V. Expanded Application Scenarios
(1) Daily Use in Medical Institutions
This washable EVA medical bag can be used to store and transport medical supplies, such as first aid kits and nursing kits, across various hospital departments. Its excellent hygienic properties and durability make it suitable for high-frequency, demanding use in medical institutions.
(2) Outdoor Medical Rescue
In outdoor scenarios such as field rescue and disaster relief, the waterproofness and durability of this washable EVA medical bag are particularly important. It effectively protects medical supplies from harsh environments and is reusable, reducing material consumption during rescue operations.
(III) Home Medical Care
For families with long-term care needs, washable EVA medical bags can be used to store common medications, nursing equipment, and more. Their easy-to-clean and hygienic features ensure the safety of home care while reducing costs.
(IV) Applications in the Medical Aesthetics Industry
Medical aesthetics institutions can use these bags to store beauty equipment, skincare products, and more. Their attractive appearance and waterproof properties ensure the cleanliness and hygiene of items while enhancing the institution’s professional image.
VI. Procurement Recommendations
(I) Select Specifications Based on Usage Scenario
Buyers can choose washable EVA medical bags of different sizes based on their specific needs. For example, larger sizes are recommended for emergency transport use in medical institutions; smaller and lighter sizes are recommended for home use or outdoor portability.
(II) Pay Attention to Manufacturer Qualifications
It is recommended to purchase from manufacturers with medical device manufacturing qualifications and extensive production experience to ensure product quality meets standard requirements. Manufacturers can be requested to provide relevant qualification certificates and product test reports. (3) Bulk Purchase Discounts
Buyers with large purchase needs can negotiate bulk purchase prices with manufacturers, often receiving discounts to further reduce procurement costs. Furthermore, long-term supply agreements can be signed with manufacturers to ensure a stable supply.
VII. Customer Testimonials
“Our hospital began purchasing these washable EVA medical bags last year and has reused them over 30 times. They still perform well, with no issues like breakage or leaks. Compared to the disposable medical bags we previously used, these bags save the hospital nearly $100,000 annually in procurement costs and reduce the burden on medical waste disposal. We highly recommend them.” — Mr. Wang, Purchasing Director of a general hospital
“As an outdoor rescue organization, we frequently use medical bags in harsh environments. We are very pleased with the waterproofness and durability of these washable EVA medical bags. They effectively protect medical supplies even in rainy weather and on rugged terrain. Furthermore, their reusable design significantly reduces the burden of carrying supplies.” — Ms. Li, Head of an outdoor rescue organization
Post time: Sep-12-2025