Top 4 Ways of Ensuring The Intergrity of Seals

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Food packaging plays an important role in protecting the food inside from elements in the environment which could damage it. The integrity of the food packaging is as good as its seals. It is the reason why most leak detection tests focus on testing the packaging’s seals. Some tests require the use of Leak Detection Equipment while others don’t.

1. Dye Penetration Method

A dye penetration test is one of the simplest tests that you can use to determine the integrity of a seal. Another key advantage of this method is that you will be able to determine the specific area where the seal is weak. You can use this method to promote the perfections of seals too because they are key to a good looking packaging. In this test, you will leave a colored dye to be in contact with the seal for a specified period. After that, you will visually inspect if it managed to penetrate into the seals in the packaging.

2. Burst Point Method

A key characteristic of good seals is strength. It is because most food packaging will contain some air. As you know, the pressure of enclosed air is directly proportional to the temperature. It means when the temperature rises the pressure inside the packaging will rise. Therefore, if the seal is not strong, it could break and start leaking. Otherwise, it can burst and spill its contents. It is a failure that anyone would not desire to happen to their preferred food packaging. In this test, you will use a Leak Detection Equipment to determine the pressure at which the seal starts to fail. After that, you can strengthen them or reduce the amount of air you enclose in the packaging.

3. Helium Sniff Method

Here, you will use a helium sniffer as the Leak Detection Equipment. It is a simple method for detecting leaks in a package. First, you will fill the package with pressurized helium. After that, you will scan the package using the helium sniffer equipment. If there are any leaks, the equipment will detect a leakage of helium. It is a good method for pinpointing the exact location where the leakage is occurring.

4. Bubble Method

A bubble method is a simple way of detecting any leakages. A key benefit of this method is that it does not require the use of complex equipment. First, you will need to pressurize the package with air. If the package has a small opening, you can just use your mouth, just as you blow a balloon. After that, you will submerge the whole package in water. If the packaging you are testing is leaking, you will see some bubbles.

5 Methods You Could Employ To Detect Food Leaks

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Food leaks are a health hazard. If not addressed early, there are challenges your company may face. The impact of the food leak could also set back the company millions of dollars in potential lawsuits and PR costs to fix a damaged reputation. Such negative consequences are avoidable. By using any of the following methods of leak detection or leak detection equipment, the food enterprise is in a position to deal with the leak on time and thus avert any harm to the consumer.

1. Bubble Test

The application of this test is quite simple. All you need to do is take the product and submerge it in water. You are sure to see bubbles if the packaging is compromised. This, therefore, confirms the presence of a leak in the packaging material.

2. Pressure Decay Test

Over the years, science has helped detect leaks in products. One such method is the pressure decay test. This technique requires one to place the product in a chamber and charge it with nitrogen gas or dry air at a specified pressure. The pressure is recorded, and the product is observed over a specified time. Any drop in pressure confirms a leak in the material. This method has proven to be reliable as it is free from bias and is affordable.

3. Vacuum Decay Test

In this test the packaging material is placed in a vacuum and pressure is applied. At a steady pressure, the measurement is recorded. Any pressure build-up within the space is noted, and this forms the basis for the conclusion of a leaking product. It should be noted that, for this test to be successful, the packaging material used should survive in a vacuum.

4. Ultrasonic Measurement

Leaks produce different sounds. The sound frequency generated is a measure of how severe the leak is. An ultrasonic detector details the frequency of the sound. The device is handheld and comes fitted with a headset, a sensitive nozzle, and a meter. Thanks to this leak detection equipment, any leak is discovered and the rate established before the product shipment to the market is done.

5. Helium Sniff Test

It is good to identify whether there is a leak in the packaging material as well as the rate of the leak. However, certain situations call for you to identify the source of the leak. A leak detection equipment called the helium sniffer is sure to do this. The test begins with charging the packaging material with pressurized helium. The surface is scanned, and the helium sniffer will identify any leak.

It is the responsibility of any food company to ensure that all safety measures are in place. As such, these methods help ensure that the food is safe for the final consumer.

Top 4 Leak Detection Methods in Food Packaging

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During grocery shopping, not many people bother to inspect the packaging of food products to see if there are any leaks. Though it’s in the best interests of the manufacturer to ensure that there are no leaks in packaged foods, leak detection methods are not always 100 percent accurate. However, some are more accurate than others. Here are top 5 leak detection methods used in food packaging:

1. Bubble Emission Leak Test

Some food packages contain some amount of air or gas. The bubble test is the most suitable leak detection method for food packages with a certain level of gas or air inside. The method involves drawing a vacuum in the package such that its completely submerge in water and observing the appearance of bubbles.

If bubbles appear, the seal is said to be compromised. During the bubble emission leak test, you can tell the location of the leak by singling out the area with the highest bubble propagation. If the leak can’t be visually located, it becomes very hard to fix.

2. Ultrasonic Measurement

A leak in food packaging must produce a sound. The level of sound produced depends on the size of the leak. The sound produced can be of either high frequency or low frequency. Small leaks — which is mostly what we are looking for in food packaging — produces a high-frequency sound which in turn can be detected with an ultrasonic leak detection equipment.

3. Pressure Decay Test

If there is a leak in packaging material, the internal pressure of the object reduces. To carry out the pressure decay test, the packaging material has to be charged with nitrogen or dry air at a given pressure level before testing the leak. The pressure level recorded is monitored for some time and if it reduces, its concluded that there is a leak.

4. Dry Chamber Flexible Package Test

This test is most suitable when testing for leaks in food packages containing liquid contents. In this method, the package under testing is put in a dry chamber and placed on an absorbent material. A vacuum is then drawn based on operator specification, and if the absorbent material becomes wet, the packaging is said to be compromised.

If food products are not properly packaged, they go bad in a matter of days. In Canada, if a company is suspected of stocking poorly packaged food products, it stands to face dire consequences from the relevant authorities. Food packaging should be done in the best way possible to maintain quality and protect the company’s brand.

Looking For An Insight To The Expansion In The Market For Leak Detection Equipment? Well, Look No Further!

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Leaks can be good. But only if you’re a GOT fan and it’s the latest episode that you’re getting to see in advance. Any other kind of leak just damages your financial situation and market reputation. As in any case, prevention is much better than cure and this is where leak detection equipment comes into the picture.


how to detect water leaks

Leak detection is, simply put, a method where leak detectors are used to check the existence of leak in a given commodity. The commodity could be packaged food, air conditioning, refrigerants, water or gas pipes or even leaks in pools.

A leak can lead to huge monetary and reputational losses which adversely affect the manufacturers, contractors, retailers and even the end consumers.


Leak Detection Equipment

It prevents loss of money from large-scale recall of damaged products. It is also an insurance policy against a possible costly lawsuit which can affect your brand reputation adversely.

A quality assurance for both customers and retailers with guaranteed freshness along with an increase in shelf of the product. With an increase in demand for RTE(Ready To Eat) food products, there is a demand for higher safety procedures in packaging which can be fulfilled by leak detection.

In case of gas or chemical leaks, leak detection is absolutely necessary and safeguards you against possible loss of life too.

At an individual level, it can decrease your water bill resulting from leaky faucets or pool leaks. Besides, these leaks only get worse over time leading to your money, literally going down the drain.


The leak detection method depends purely upon the accuracy required and the kind of product. A mix of various leak detection methods can be used to get the best possible results.

Following are some of the leak detection methods commonly used:


Since pressure in an important element in a sealed container, application of high pressure makes the leak more noticeable (Over-pressure technique). Tins and cans are also submerged in water to make the leaks show up in the shape of bubbles and is known as underwater bubble emission.

Uses: mainly food containers


This method mainly comprises the detection of elements such as hydrogen, radioisotopes, or helium which are added to the system and detected externally. Gas sniffing is a method which uses helium detectors which senses the presence of helium on the container.

Uses: Mainly for food and other air tight containers.


In this method, acoustic vibration waves are used to propagate high pressure gases and fluid leaks. This requires the use of an ultrasonic microphone. This method is usually combined with the other methods to give the most accurate results.

Uses: High pressure gas and water leaks, refrigerants, etc.


This method is used to track surface breaking defects in metals, ceramics, or plastics. It is based on the concept of surface tension.

Uses: In plastic or metal bodied machines, ceramic tanks, pools,etc.

Apart from installing the leak detection equipment, it is imperative to keep the maintenance of theequipment up-to-date. A well-planned system and schedule must be followed for this purpose.

It is seen that the cost of setting up leak detection is a one-time cost and quite low as compared to the possible losses. However, as a business owner or even an individual who is investing in leak prevention equipment, you should research well before investing in any kind of equipment as per your own specific needs.

Top 4 Methods of Leak Detection and Advantages

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Leak detection is a method where leak detectors are used to check the existence of a leak in a given commodity. The technique involves sealing of containers to detect any form of leakage. There are several detection methods, which are classified, as internal, or external. However, the technique used depends on where the leak detection equipment is placed.

Leaks are known to be the last effects after corrosion. The deteriorated container tends to break, exposing the contents in the container. Luckily, with the help of the sophisticated technology of leak detection equipments, corrosion is discovered before it gets to a level of exposing the materials. The detection method incorporated depends on the type of element used. There are four commonly used methods of Leak detection types (LDS)

Methods of Leak Detection System

The incorporation of leak detection equipments depends on the type of materials to be tested more so on the detection method and the detection mechanism used. The methods include:

1. Pressure Method

Pressure is an important element in a sealed container. For this reason, Leak detection equipments greatly depend on the available pressure in the sealed containers. A pressure drop or an increase in a vacuum chamber indicates that there are high chances of a leakage in a given container. Application of high pressure in the containers can make the leak to be more noticeable. Additionally, coating the outside of a tin with soapy water makes the detection noticeable since bubbles will be formed on the leaked areas.

2. Chemical Detection Method

Majority of leak detection mechanism involves the detection of elements such as hydrogen, radioisotopes, or helium. The elements are added in the system and detected externally using a suitable method. In addition, gases can also be used-the method is known as gas sniffing. Gas sniffing involves the use of helium detectors whereby the equipment is capable of sensing or sniffing out the presence of helium on the containers. Helium detection is the most used method in leak detection due its effectiveness and ease of functionality. Further, Helium detectors functionality is enhanced due to the use of mass spectrometry it incorporates.

3. Acoustic Methods

This method uses acoustic vibration waves. The waves are capable of propagating high-pressure gasses and fluid leaks. However, this method requires the technicalities of an ultrasonic microphone. The highly sensitive microphone is able to pick up the loudest of the noise emanating from the acoustic vibration waves. Additionally, for efficient and more accurate result, acoustic method in conjunction with other methods offers incredible results.

4. Dry penetration method

Dry penetration is also known as penetrant testing (PT). It is a commonly used method used to locate and track surface breaking defects in metals, ceramics, or plastics. The general basis of this methodology lies in the chemistry of understanding surface tension. The penetrant is applied on ferrous and non-ferrous materials to detect forging or welding surface defects. The defects are usually as a result of leaks, hairline cracks, or surface porosity.

Advantages of Leak Detection in Food Packaging

Guarantee of food freshness to retailers and consumers is a key aspect in food packaging. For this reason, package leak detection is a competitive advantage to guarantee longer shelf life and an appealing presentation to the consumer. Below are several advantages of using leak detection equipment in packaging food products:
• Guarantees freshness to all users of the product
• Quality assurance in the documentation of food products makes it easy for consumers and retailers to purchase the products.
• Prevents needless returns, loss of prestige, and loss of consumers

Tips for Maintenance of Leak Equipment for Detecting Leaks in Food Packaging

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Food packaging helps to keep contaminants out of processed, fresh and frozen food. The packaging also protects the food from situational problems such as moisture loss, freezer burn and physical damage. In order to ensure that the leak equipment that is used for detecting leaks in food packaging is in good condition, manufacturing and packing facility managers should follow these maintenance tips.

Follow the Manufacturer’s Maintenance Schedule
Most pieces of leak equipment come with an owner’s manual. The owner’s manual should detail the manufacturer’s specifications for maintenance. The maintenance requirements and frequency of each action should be explained. If the equipment has a manufacturer’s warranty, it is important that the maintenance schedule be followed in order to maintain the terms and conditions of the warranty. Some pieces of leak detection equipment must be serviced and repaired by factory-trained technicians. Be sure to find out if this is the case for your equipment. If it is, only use a qualifying technician to do the repairs.

Regularly Test the Leak Detection Equipment
It is also important for the leak equipment to be tested on a regular basis. The frequency of equipment testing should depend on the throughput of your facility. It might also depend on the manufacturer’s specifications. Each piece of leak detection equipment will have different testing requirements. Be sure to put the machine through testing conditions that are similar to the real-world conditions, such as testing it first thing in the morning after the machine has not been in use over a weekend or holiday. It should also be tested after it has been working for many hours, such as at the end of of an 8-hour shift.

Set Up an Automated System for Maintenance and Testing Reminders
If your facility’s leak equipment is automated, consider setting up an automated system to alert you to the need for maintenance. For example, if the manufacturer specifies that maintenance of the unit is needed after the equipment checks 10,000 units, have the equipment alert you at the 9,000 units point. If you want to implement a system of randomized testing of the leak detection system, program the system to generate a random number and test the system after that many units have been processed. Be sure to keep all of the results from your testing. You may need to have the records in order to prove that your facility has been diligent with the testing and maintenance of the food packaging systems.

Handling leak Detection for food packaging

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Food manufacturers stand to incur substantial losses whenever their food products test positive for even very small leaks. In fact, if the food products have already been dispatched, fixing the leak problems can be an extremely expensive ordeal for the company. If the leaks are not detected in real-time during the packaging process, then the food company will have to do a food recall which gravely hurts the company’s reputation. In order to avoid harming the brand reputation of your food products, you should consider investing in leak equipment that will help your packaging staff handle the food leakage beforehand.

It’s also important to understand how the leakage is detected. The detection is pretty simple because it’s all about when the packaging defect meets an already determined criterion. For instance, the pressures generated with the packaging when they are being distributed and the consequent relationship between the micro-organisms and the leak size.

Canned Goods

Leak spoilage happens when micro-organisms enter the container of canned food causing contamination. Research has proved that leak spoilage is the main cause of post-process contamination resulting in loss of sterility in the product. Hence most of the food poisoning incidents that occur at the consumption stage are caused by this type of post-process contamination.

Flexible and Semi-Rigid Packaging

Although this was developed as an option for canning, it can also experience leakage. The various layers of polymers and metals used in making the packages are designed in such a way that they offer sturdy barrier features. A leak occurs in the flexible and semi-rigid packaging when food gets entrapped in the seals or when they wrinkle slightly causing holes on the seal area of the package. In other words, the seal contamination, in this case, is mechanical and is due to poor control of the sealing structures. You should ensure that high standards of the material being used have been met because if temporary holes appear in the packaging material, leaks can also occur.

The pinholes in these types of packaging can be controlled by avoiding burst and seal creep. These are simple defects that often occur during the storage and distribution of the packages. To maintain sterility of these type of package, sealability, and peelability ought to be observed.

How Leaks Are Discovered

Besides employing all your QA/QC processes such as searching for abnormalities via sight and touch, you should consider investing in a credible leak equipment for detecting the leaks. Leaks can cause big problems to the reputation of your brand and should be controlled by all possible means.

Leak Detection : Know These Leaks and Prevent Them

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There is an always an upcoming requirement for items and innovations that for their adept usage require hermetically shut components, vessels and tubes. Envelopes with more prominent or littler vacuum seals are needed to be guaranteed using Leak Detection Equipment for a palatable separation between outer environment and inside over-or under pressure.

Flickr / bisgovuk
Flickr / bisgovuk

The states of holes (breaks, gaps, porosity, harms, and so forth … ) are altogether different, obscure and non-uniform. Along these lines it is difficult to gauge their sizes with any geometrical measurement aside from obviously on account of a perfect or fake hole as utilized for alignment. How then to characterize the release estimate? A for the most part acknowledged strategy turned into the perception of gas or liquid course through it in specific states of temperature and weight distinction.

Radioisotope strategy is valuable just to test hermetically fixed segments. They are put in a chamber which is to be cleared and loaded with radioactive tracer gas (typically krypton 85) using apt Leak Detection Equipment.


Color penetration strategy is an adjustment of a system used to discover splits in metals and deformities in welds. It utilizes a low thickness liquid that shows a high rate of surface movement. This liquid is painted on one side of a presumed spill site, and after a period, it is distinguished on the opposite side of the divider.


Acoustical hole discovery utilizes the sonic or ultrasonic vitality produced by gas as it grows through an opening. Pressurized gas continues from tried framework through holes which are distinguished outside by sensible receiver (regularly around 40 000 Hz).


Mass spectrometers as hole finding equipment are utilized as most delicate instruments for expressing spill presence and nearness in vacuum frameworks. They are balanced on the iota individually atomic weight of tracer gas. It is normally helium.

Flickr / IAEA Imagebank
Flickr / IAEA Imagebank

Overpressure techniques can be performed by liquid or gas with which the tried component must be filled. As a liquid normally the water from house establishment is utilized.


Halogen spill identifiers are utilized as a part of the indicator test mode (to 10-3 mbarl/s), requiring that the framework be pressurized with a gas containing a natural halide, for example, one of the Freons.

Use of Leak Detection Equipment on Manufactured Products

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Growth in technology and economy in Canada has brought an increased usage of canned and packaged products. Faulty food packaging would lead to great losses and destruction of a company’s brand. To curb this problem, the manufacturers should aim at getting reliable leak detection equipment. The leak equipment ensures that the package is super tight by locating any pin-sized holes and leaks found on any product before it gets to the consumer. There are different leak detection equipment that vary depending on the type of material being packaged.

Offline Versus Online

Leak equipment uses either offline or online detection methods. Offline detection system requires the operator to perform the leak detection process manually. The system has a sensor that reports results of a hole and its location. The package remains intact when the sensor fails to detect a leak. In the online leak detection system, the operator feeds quality requirements to the system. The products then move along a conveyor belt, and the systems alert the operator if it detects a leak from a product.

Various Leak Detection Techniques

There are different methods used in detecting leaks from products to determine the seal’s integrity. Some of the most common methods include:

• Gas Leak Detection

The manufacturers use hydrogen, helium, and carbon dioxide to trace any leak on a package. They place the product in a closed airtight chamber and flood it with the gas and a detector gives data about the leaks and its size too.

• Bubble Emission Leak Testing Method.

It is one of the simplest methods used in the detection of leaks. The manufacturers submerge all products in water and close the lid. A package with a leak releases some air bubbles and shows the location of the bubble.

• Dry Chamber Leak Testing

The method is ideal for the liquid products with a little air space in them. The manufacturers place the item on a dry chamber that has a dry absorbent paper. They then draw the vacuum to the package and a wet absorbent paper confirms the presence of a leak.

Importance of Leak Detection

All packages contain a seal that indicates the quality of the products, and a broken one is a sign of a faulty package. Other reasons why manufacturers should be keen on food packaging include:

• When a package has a leak, the expiration date does not match performance leading to negative reviews and the low popularity of the brand.

• A leak on the products exposes it to the various contaminants in the surrounding leading to poor quality or destruction of the items. Leak detection also lowers the operational costs emanating from the large-scale product recalls.

Leak Equipment Can Help You Fix Your Pool

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Having a swimming pool on your property can be a wonderful thing, at least during the warmer months. However, as you have probably noticed since having your pool, taking care of one can be a whole lot of work. For example, even if your pool is newer or if you have been serious about taking good care of it, you have to worry about things like leaks causing problems. Luckily, a company that has leak equipment and that focuses on leak detection can help you with this.

Leaks Can Appear in Your Pool Over Time

Many people never really think about their pool leaking, but no matter what type of pool you have, this is always an option. Concrete might be strong, durable and built to last, but cracking and crumbling is something that can happen over time. After all, your concrete is exposed to water constantly, which can cause it to wear out more quickly. The problem is that it can be tough to find a leak in your pool if you don’t have the right equipment. Luckily, this is where a leak detection company can help you out.

Have You Noticed Signs That Your Pool is Leaking?

If you aren’t sure of whether or not your pool is leaking, there are a few signs that you can watch out for. One of the main ones — and one of the easiest to catch — is if your pool is losing water. It’s not abnormal for a pool to lose water and to need to have water added every now and then; for example, when it’s warm outside, you have to worry about water evaporating, and there is also a chance that people who are using your pool occasionally splash water out of it, which can lead to significant water loss over time. If you feel that your pool is losing more water than it should be, however, a leak detection company can use its leak equipment to get to the bottom of the problem.

Have Your Leaks Repaired

One thing that you should know about pool leaks is that they will often get worse on their own over time. If ignored, your pool might slowly become in worse and worse shape. For example, a small crack in a concrete pool could slowly get worse. This is why it’s so important to look for leaks and have them repaired as soon as possible.

As you can see, leak equipment can be used to help you fix your pool. If you have never worked with a leak detection company, consider contacting one so that you can find out more about finding and getting rid of leaks.