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Biohazard Bag

Biohazard bag used in laboratory

What is biohazard bag?

The healthcare industry and biotechnology laboratories transport biohazardous materials, such as laboratory specimens, test samples, human tissue, and medical waste, on an almost daily basis. These substances are often transported between locations for testing, diagnosis, medical use, or disposal, so it is imperative that they are packaged in such a way that they do not come into contact with any external objects. Diagnostic samples must be contained in a sterile environment to prevent contamination and maintain their test viability. Medical waste and potentially infectious materials must be kept in sealed containers to protect the health of operators and transporters, such as blood or items contaminated with human waste. In addition, any packaging containing biohazardous materials should be clearly labeled so that its contents can be easily read and handled with extreme care. For this reason, healthcare companies use biohazard bags to safely and securely move hazardous medical materials from one location to another, so they can be used or disposed of without compromising their use or health.

Biohazard bag is a kind of paper or plastic bag specifically designed for the safe containment, transport and disposal of diagnostic and infectious materials. Biohazard bags can be used to create a sterile, airtight environment in which to contain biohazardous materials by using a zipper-lock airtight seal. This protects the laboratory and test samples from external contamination while protecting the operator from potentially infectious materials. Biohazard bags designed to resist tears, punctures, or leaks are typically much stronger than other plastic bags. Many also have some sort of padding inside, such as bubble wrap, which provides additional protection for fragile materials.

Biohazard bags can be used to create a sterile, airtight environment in which to contain biohazardous materials by using a zipper-lock airtight seal. By doing so, the laboratory and test samples are protected from external contamination and the operator is protected from potentially infectious substances. Biohazard bags designed to resist tears, punctures, or leaks are typically much stronger than other plastic bags. Many also have some sort of padding inside, such as bubble wrap, which provides additional protection for fragile materials. This allows them to safely transport and protects medical materials from one location (such as a hospital or doctor's office) to another for diagnosis, use, or disposal. Biohazard bags come in a variety of sizes and can be used to transport a wide range of different medical materials.

Application of biohazard bag

Biohazard bags have applications throughout the healthcare industry and are commonly used to transport medication sticks, vials, organs, and medical waste. Clinics, doctors' offices, nursing homes, hospitals, and medical laboratories all utilize this versatile and convenient form of packaging for many different purposes.

Physicians' offices and clinics

Physicians' offices and clinics use biohazard bags and pouches because they have many critical applications in such facilities. Test samples are often sent to laboratories for off-site testing and must be transported in sealed containers to prevent them from coming into contact with outside contaminants. Many test samples have infectious or potentially infectious materials that can cause illness in those who come in contact with them, so they must be systematically sealed and labeled. Biohazard bags are critical for keeping these materials in a sterile, closed environment to ensure operator safety and protect the viability of test samples.

Biohazard packaging is also used to transport medical waste for safe disposals, such as used syringes, medication sticks, and dressings. These often contain infectious materials and therefore must be properly labeled and contained to protect operators and handlers.


Hospitals are large producers of biohazardous medical waste and one of the largest transport sites for biological samples such as blood, test specimens and organs. These materials must often be moved quickly and carefully from one area of the building to another for diagnostic or other medical purposes, necessitating the use of biohazard waste bags (medical waste bags) in large quantities. These can be used to transport organs for transplantation, laboratory specimens for diagnostics, or medical waste for safe disposal. It is critical that all materials reach their destination quickly and efficiently, and biohazard bag that is easy to use in hospitals are critical to achieving this goal.

Medical laboratory

Research facilities, such as medical laboratories, also use many biohazardous sachets and packages in their daily operations. Sensitive laboratory samples, importantly, must all be handled and transported with care to prevent contamination by external debris, which is essential to ensure the accuracy of test results. Biohazard pouches are specifically designed for this purpose and are easily labeled so that their contents can be quickly identified. Many biohazard bags are double-decked in design construction, with an additional outer compartment that can hold labeled documents for identification purposes. Waste materials that come in contact with potentially infectious substances must also be stored and disposed of safely to protect anyone who handles them. Used vials, test samples, test tubes, and other materials should be stored in clearly labeled biohazard bags and then safely removed by a professional collection company. Companies throughout the healthcare industry use biohazard specimen bags every day to safely contain and transport biohazard materials. These pouches are specifically designed to prevent leaks and external debris from coming in contact with the materials inside. This protects handlers and transporters from exposure to potentially infectious materials during transport, while ensuring that test samples arriving at the lab remain usable.

Principles of laboratory biological waste disposal

The meaning of laboratory waste exists in both broad and narrow senses. The broad meaning refers to the general term of substances discarded from the laboratory, including gases, liquids, and solid drugs, as well as garbage, cabinets, appliances, etc. The narrow meaning refers to toxic and harmful gases, waste liquids, waste sludge, laboratory materials, consumables, etc. generated from experiments. In addition to general laboratory waste, biological waste also includes tissues, organs, corpses, tissue fluids, and metabolites of plants and animals used in the experimental process or produced by culture, microorganisms (bacteria, fungi, viruses, etc.), and their culture media, etc.

Types of biological waste

a. Biologically active materials and their metabolites

Biologically active experimental materials commonly used in laboratories include individual plants and animals, organs, tissues, cells, prokaryotic microorganisms, eukaryotic microorganisms, and microorganisms with non-cellular structures such as viruses, or genetically modified active products of the above-mentioned biological materials.

On the one hand, the growth of cells and microorganisms cultured in biological laboratories requires good nutritional conditions, and experimentally cultured bacteria are often able to grow normally in the presence of drugs such as antibiotics. If not handled properly, these biologically active experimental materials with high nutrient content, high drug concentration, and possible toxic metabolites will cause pollution and threats to the surrounding soil environment, rivers, and other waters.

On the other hand, biological laboratories often use mice, rats, rabbits, and other animals as experimental materials. The experimental process of these experimental animals generally through vaccination or germs, injection of antibodies or drugs, and other different treatments, after the completion of the experiment, animal carcasses or dissected animal organs, animal excrement, etc. need to be properly disposed of in a timely manner, otherwise, there is a risk of interference and impact on other animals or experimental treatment, or even cause the spread of germs or disease.

Furthermore, biological laboratories often need to cultivate plant active materials (including seeds), and the corresponding plant active samples should be properly disposed of after the completion of the experiment, otherwise, it is easy to cause biological invasion or the spread of pests and other ecological hazards.

b. Toxic chemical reagents, molecular reagents, and other wastes

Cyanide, ethidium bromide (EB), dimethyl sulfoxide (DMSO), acrylamide, formamide, and its combination, waste acids, alkaline solutions, organic solvents, gel electrophoresis, culture medium (liquid), eluent, various kits, heavy metals, etc. are the main toxic and highly toxic substances in biological experiments, these items are not only highly toxic and dangerous to humans, but also extremely harmful to the environment and the impact.

c. Radioactive substances and their waste

The use of radioactive elements as markers for testing and analysis is a common biological experimental method, and the experimental materials treated with radioactive elements as well as the various instruments and utensils used for experiments will be contaminated with radioactive substances to varying degrees. If improperly used or poorly managed will lead to radioactive contamination, causing great harm to humans and the environment, the consequences are unimaginable.

d. Experimental instruments and consumables

Experimental equipment and consumables include plastic products such as a variety of tips, pipettes centrifuge tubes, syringes, gloves, culture dishes, and packaging, etc., mostly disposable supplies that are easily contaminated. Glass products include a variety of culture dishes, test tubes, pipettes, slides, coverslips, common containers, filter vessels, and other fragile and perishable items. The most common metal items are needles for injection, microspike needles, blades, scissors, and other sharp items. The above supplies are daily necessities in biology laboratories, used to directly absorb, hold or contact all kinds of reagents and experimental materials, but also toxic and harmful substances and pathogens transmission carriers, and may cause direct mechanical injury to humans.

Disposal methods for biological waste

a. Improve safety management system and strengthen implementation

Biology laboratories are characterized by multiplicity and intersectionality, and the management of waste should not only meet the safety needs in the general sense, but also develop and improve operational biological waste management measures and protocols according to their own characteristics, identify safety responsibilities at each level, and improve the standardization, institutionalization, and standardization of safety work in biology laboratories. The competent departments should strengthen supervision and guidance on the implementation and execution of relevant measures, conduct regular inspections of laboratory waste, and establish smooth channels for declaration, recycling, and disposal.

b. Different wastes should be stored separately and recycled in time

Due to the different types of waste, and different natures, in order to reduce cross and overlap pollution and possible direct mechanical injury, different waste should be stored separately in timely recycling.
Management and disposal of bioactive waste experimental materials
Experimental waste of bioactive experimental materials, especially cells and microorganisms must be inactivated and disinfected in a timely manner. Microorganisms cultured agar plate should be pressure sterilized for 30min, while hot agar dumping disposal, solid waste medium without effective treatment can not be disposed of as daily waste; liquid waste such as bacterial solution need to be disinfected with 15% sodium hypochlorite for 30min, diluted and discharged to minimize the impact on the surrounding soil environment, rivers, and other waters. Urine, saliva, blood, and other samples with bleach are stirred for 2-4h and then poured into septic tanks or toilets or incinerated for disposal.

At the same time, whether in the animal room or laboratory, where the abandoned laboratory animal carcasses or organs must be disinfected in a timely manner in accordance with the requirements, and sealed with a special plastic bag and stored frozen, sent to the relevant departments to centralize the incineration process, prohibit the random disposal of animal carcasses and organs; strictly prohibited piles of animal excrement, and animal-related garbage must be stored in designated plastic garbage bags, and timely disinfection with peroxyacetic acid treatment Only after disinfection with peroxyacetic acid can be transported out of the laboratory.
Management of toxic experimental waste
Specify the person responsible for the use of special containers (with prominent signs) will be heavy metals, cyanide, ethidium bromide (EB) and its combination of various toxic reagents for classification, classification and collection, dedicated management, regular recycling, unified treatment. It is strictly prohibited to bury, dump and discard harmful waste liquids and wastes at will. It is especially worth noting that some waste liquids cannot be mixed with each other, such as peroxides and organic matter; cyanide, sulfide, hypochlorite and acid, etc. It is important to equip containers that are intact and will not be corroded by waste liquids for collection. Waste liquids or wastes with odor or volatility should be strictly prevented from leaking volatile gases and should be treated as soon as possible.
Management of radioactive waste
The experimental process of radioactive waste should be isolated from the human living environment for a long time, the use of special containers to collect, packaging, storage, designated personnel responsible for storage, professional departments to unify the recycling process or let its natural decay to minimize the harm to humans and living things. And take effective fire prevention, anti-theft and other security measures to prevent the leakage of radioactive materials.
Management of experimental instruments and consumables
Biological experiments produced in the process of single-use products such as gloves, caps, overalls, masks, tips, pipettes, centrifuge tubes, syringes, packaging, etc. After use into the dirt bag concentrated burn; reusable glass equipment such as slides, pipettes, glass bottles, etc. can be soaked in 1000 ~ 3000mg / L effective chlorine solution for 2 ~ 6h, and then cleaned and reused, or discarded; holding specimens of Glass, plastic, enamel containers boiled for 15min or soaked in 1000mg/L effective chlorine bleach clarification solution for 2-6h, then cleaned and reused; equipment that cannot be recycled, especially discarded sharps (such as contaminated disposable needles, broken glass, etc.), because it is easy to cause damage, should be sent to the incineration station to be burnt and disfigured after being collected by the classification of ligature-resistant containers and buried.

How to buy biohazard bag?

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