The testing standards for latex gloves cover multiple key performance indicators of the gloves.
Physical Properties: including the gloves’ tensile strength and thickness uniformity, etc.
The machine used to measure the tensile strength of gloves is the universal material testing machine.
Apply axial tensile force to the glove through the fixture until it breaks, and record the maximum load and elongation. This kind of machine can conduct rapid spot checks on the production line and directly test the five-finger or palm area for the optimization of glove shapes.
Machines for measuring the uniform thickness of gloves include non-contact laser thickness gauges (laser scanning the surface of the glove and calculating the thickness based on the reflected light), contact thickness gauges (measuring the thickness by gently pressing the surface of the glove with a mechanical probe), etc. When the production scale is small, contact thickness gauges should be used; when the production scale is large, laser online side and rear + automatic tensile testing machines should be adopted.
Glove air tightness testing is an important step to ensure that gloves can effectively prevent the penetration of external gases or liquids in various usage environments. It has become the prescribed testing method by public health departments in most countries and stipulates the quantification of sampling inspection. Generally, in fields such as medical care, chemical engineering, and laboratories, gloves have high requirements for air tightness, which is related to the safety and efficiency of operations.
Advantages of Fengwang Glove Watertight Testing System
The machine’s exterior is made of stainless steel, which is clean and does not contaminate gloves.
2. The water injection of the machine is uniform and can be injected into each glove simultaneously.
3. Precise measurement ensures that the objectivity of the measurement is not affected by water volume deviations.
4. Water is supplied according to the water level, so there is no need to worry about the replacement of solenoid valves due to faults.
5. The installation of a waterproof flashlight makes it convenient to distinguish the quality of gloves.
Chemical Properties: For the possible residual chemical substances on gloves, such as protein content detection, advanced protein detection instruments are used. After disinfecting the glove samples, the protein content is precisely measured by colorimetry and other methods. It is necessary to ensure that it is below the safety threshold. Excessive protein content may cause allergic reactions in users.
There are also strict requirements for the detection of chemical additives on gloves to prevent harmful chemicals from contaminating the items they come into contact with or causing harm to the human body. Precise quantitative detection is carried out through technical means such as chromatographic analysis to ensure that all chemical indicators meet the requirements of environmental protection and safe use.
Biological Performance Testing: For latex gloves with special uses, such as in the medical field, laboratories, food manufacturing and processing, etc., strict microbial limit tests need to be conducted on the gloves to ensure that the bacteria, fungi, and other microorganisms on the surface of the gloves are within a safe range.
Quality inspection runs through the entire process of disposable latex glove production. When purchasing raw materials, tests are conducted on the purity, pH value, and microbial content of latex raw materials. During the production process of latex gloves, quality inspectors check the appearance of the gloves for any issues such as bubbles, impurities, or damage. During the finished product inspection, physical properties (tensile strength, uniformity of glove thickness, etc.), microbiological testing, and chemical property testing of the gloves are carried out. Latex gloves should be packaged and released from the factory only when every test meets the standards.