Airtightness testing dry goods! 150 core keywords, an article to read!

In modern industrial production, the sealing performance of products is of vital importance. Airtightness testing has been increasingly emphasized as a key link in ensuring product quality and safety.
We, Precision Engineering, have been working in this field for more than 10 years and have accumulated a wealth of practical experience.In order to help you understand more comprehensively about airtightness testing, JCGK has organized 150 core keywords and written this article. In order to help you understand the airtightness test more comprehensively, JCGK combines more than ten years of industry experience, collated 150 core keywords, and wrote this article, trying to use simple and easy-to-understand language, to take you to understand the airtightness test in a single article, and recommended to collect for reference.

serial number	byword	categorization	interpretation of nouns
1	The relationship between airtightness and waterproofing	conceptual	Airtightness is the basis of waterproofing, and good airtightness usually means better waterproofing. However, the two are not exactly the same, for example, some products may be airtight, but not necessarily completely watertight
2	Air tightness testing	conceptual	Detecting the ability of a product or system to prevent gas leakage
3	Sealing test	conceptual	Similar in meaning to airtightness testing, sometimes used interchangeably
4	Waterproof test	conceptual	Testing the waterproof performance of products is related to airtightness testing.
5	leakage channel	conceptual	Path of gas leakage
6	Detection accuracy	norm	Accuracy of test results
7	Detection efficiency	norm	Time required to complete a test
8	spill	norm	Total amount of leaking gas, commonly used pressure units are Pa, kPa, bar, MPa, psi, mmHg, etc.
9	leak rate	norm	The amount of gas leakage per unit of time, commonly used flow units are Pa-m³/s, ml/min, sccm, etc.
10	leak rate	norm	The amount of gas leaking per unit of time, similar in meaning to leak rate
11	Seal life	norm	Service life of seals
12	leakage threshold	(an official) standard	Leakage standard value for determining product conformity
13	Conformity Determination	judgment	According to the test standards or customer requirements, to determine that the product under test meets the air tightness requirements
14	Failure to pass judgment	judgment	Based on the test results, determine that the product under test does not meet the airtightness requirements and may need to be reworked or scrapped.
15	Inflation time	parameters	Time required to fill the product under test with compressed air
16	equalization time	parameters	Time required to wait for system pressure to stabilize
17	detection time	parameters	Length of time for which leakage measurements are actually performed
18	unit of measure	parameters	Display units for test results, e.g. pressure units Pa, kPa, MPa, psi, leakage rate units Pa-m³/s, cc/min, ml/min, etc.
19	channel number	parameters	The number of channels that can be inspected at the same time, for multi-station or multi-product simultaneous inspection
20	Full scale error	parameters	Maximum possible error of the detection device over the entire measuring range
21	Test range	parameters	Range of pressures or leak rates that can be measured by the test equipment
22	timekeeping range	parameters	The time range in which the detection device is timed to measure the rate of pressure decay or leakage
23	reading error	parameters	Possible errors when reading test results manually
24	resolution (of a photo)	parameters	Minimum change in pressure or leak rate that can be discerned by the detection device
25	(level of) sensitivity	parameters	Minimum amount of leakage that can be detected by the testing equipment
26	repeatable	parameters	Consistency of results when testing is repeated
27	stability	parameters	Testing the performance stability of the equipment over long periods of time
28	sealing pressure	parameters	Pressure acting on the sealing surface
29	sealing temperature	parameters	Temperature of the seal's working environment
30	Waterproof test method	methodologies	There are different test methods for different waterproof levels, such as immersion test, spray test, pressure test, etc.
31	Non-Destructive Testing (NDT)	methodologies	Without damaging the product under test, airtightness testing is non-destructive.
32	Test Principle	methodologies	Specific operating principles for gas tightness testing, e.g. pressure decay method based on the ideal gas equation of state, tracer gas method based on the principle of gas diffusion
33	stress test	methodologies	Tests using gas pressure, including positive and negative pressure tests
34	positive pressure test	methodologies	Test by applying a gas above ambient pressure to the inside of the product under test.
35	Negative Pressure Test	methodologies	Reduce the internal pressure of the product under test below the ambient pressure for testing.
36	water pressure test	methodologies	Tested using water pressure, used to detect the waterproof performance of the product, can also indirectly reflect the airtightness
37	pressure decay method	methodologies	Determine leakage by measuring the change in pressure in a closed chamber over time, suitable for large-volume inspection
38	differential pressure	methodologies	Comparison of the pressure difference between the standard and the product under test to detect leaks, suitable for high-precision testing
39	volumetric method	methodologies	Detects leaks by measuring changes in gas volume, suitable for fully enclosed products
40	flow rate method	methodologies	Direct measurement of gas flow to detect leaks, suitable for open systems
41	tracer gas method	methodologies	High sensitivity in tracking leaks using special gases (e.g. helium, hydrogen)
42	vacuum leak detection	methodologies	Vacuum the product under test to detect whether there is any gas entry
43	Bubble Detection	methodologies	Determining leaks by observing bubbles, including the immersion method and the smearing method
44	soaking	methodologies	Simple and intuitive to observe the bubbles by immersing the product in water.
45	application	methodologies	Apply soapy water, etc. to the surface of the product under test and observe whether air bubbles are generated.
46	destructive testing	methodologies	Testing of airtightness by destroying the product under test, e.g. bursting test
47	Non-destructive testing	methodologies	Testing is performed without damaging the product under test, and airtightness testing usually falls into this category.
48	Leak detection method selection	methodologies	Selection of the appropriate detection method according to the product under test, leakage rate requirements, detection environment and other factors
49	Packaging integrity	performances	The ability of packaging to maintain product integrity is closely related to air tightness
50	Artificial Intelligence (AI)	skill	Applied to data analysis and automation control of airtightness testing, etc., to improve testing efficiency and accuracy
51	Internet of Things (IoT)	skill	Connect the testing equipment to the network to realize data remote monitoring and management, and improve the level of intelligence
52	Leak point localization	skill	Techniques to locate leaks, such as tracer gas methods combined with acoustic detection
53	microleakage detection	skill	Techniques for detecting small leaks
54	Gas composition analysis	skill	Analyzing the composition of leaking gases for locating the source of leaks
55	acoustic detection	skill	Locate leaks by detecting sound waves generated by leaks
56	infrared thermography	skill	Locate leaks by detecting temperature changes caused by leaks
57	automated testing	skill	Improve efficiency by using automated equipment for airtightness testing
58	On-line Detection	skill	Real-time airtightness testing on the production line
59	offline testing	skill	Remove the product from the production line for airtightness testing.
60	Leak detection automation	skill	Utilizes automated equipment for airtightness testing to improve testing efficiency and reduce labor costs
61	Intelligent Detection	skill	Applying Artificial Intelligence and Other Technologies to Airtightness Inspection
62	remote monitoring	skill	Remote monitoring of airtightness testing process and results via the internet
63	Data traceability	skill	Record and trace airtightness test data
64	virtual leak detection	skill	Leak detection using computer simulation
65	Air tightness tester (tester, leak detector)	installations	A wide range of specialized instruments for performing airtightness tests.
66	Helium Leak Detectors (Helium Detectors)	installations	Leak detector using helium as tracer gas with high sensitivity
67	Airtightness Test Fixture (Tooling)	installations	Clamps for fixing the product under test and providing a sealed interface
68	Use of gas supply	installations	Source of gas used in the testing equipment, e.g. compressed air, nitrogen, helium, etc.
69	mechanical regulator	installations	Adjustment of test pressure using mechanical devices (e.g. valves, regulators)
70	electronically controlled regulator	installations	Use electronic control system to adjust the test pressure, higher precision and higher degree of automation
71	oscillograph	installations	For displaying and analyzing electrical signals, can be used to detect sensor signals
72	Ultrasonic Leak Detector	installations	Instruments for detecting leaks using ultrasound
73	thermal imaging camera	installations	Instruments for leak detection using infrared thermography
74	Seals (O-rings, gaskets, etc.)	character radical	The material, size and mounting of the components used to realize the seal have a significant impact on the airtightness.
75	Pressure sensors	character radical	Sensors for measuring pressure are an important part of methods such as pressure decay methods
76	flowmeter	character radical	Instruments for measuring gas flow, an important part of the flow method
77	Testing costs	economics	The cost of conducting an airtightness test
78	environmental factor	factor	Environmental factors such as temperature, humidity, air pressure, etc. may affect the test results
79	calibrations	manipulate	Calibration of test equipment to ensure accuracy of test results
80	safeguard	manipulate	Regular maintenance of testing equipment, including cleaning, calibration, replacement of components, etc., to ensure the accuracy of testing and prolong service life
81	porosity	Material Properties	Degree of internal porosity of the material, which affects airtightness
82	sealing glue	makings	A gelatinous material used to fill gaps and prevent leakage. There are many different types of sealants, and it is important to choose the right sealant for different applications.
83	glues	makings	Materials used for joining and sealing components, the properties of which have an impact on airtightness
84	sealing material	makings	Materials used to realize seals, such as rubber, silicone, etc.
85	sealing structure	devise	The sealing design of the product or system, which affects airtightness
86	Sealed design	devise	Design of the sealing structure of the product or system
87	Consumer Electronics	Application Areas	Airtightness testing for consumer electronics products such as smartphones, smartwatches, Bluetooth headsets, etc. The main purpose is to ensure the waterproof and dustproof performance of the products.
88	Automotive	Application Areas	Airtightness testing of automotive components, such as engines, fuel tanks, etc.
89	Medical Device Industry	Application Areas	Airtightness testing of medical equipment, such as infusion sets, ventilators, etc.
90	electronics industry	Application Areas	Waterproof and dustproof testing of electronic products, such as cell phones, tablet computers, etc.
91	Aerospace industry	Application Areas	Airtightness testing of airplanes, rockets, etc., is extremely demanding
92	Packaging Industry	Application Areas	Airtightness testing of food, pharmaceuticals and other packaging to ensure product quality
93	Packaging Leak Detection	Application Areas	Detection of package leakage
94	Medical Packaging	Application Areas	For packaging of medical products with high requirements for air tightness
95	Food Packaging	Application Areas	Used for packaging of foodstuffs with certain requirements for air tightness
96	Auto Parts	component	Many of the various components in automobiles need to be tested for airtightness.
97	Aerospace components	component	Components on aerospace vehicles, which require extremely high levels of airtightness
98	Data Acquisition System	systems	For collecting and storing test data
99	Leak Detection Automation System	systems	Automated inspection systems integrating multiple inspection devices and control systems
100	Leak Detection System Integration	systems	Integration of different inspection equipment and software into one system for automated control and data management
101	leak alarm	systems	Systems to provide alarms in case of leakage
102	air handling	systems	Compressed air purification and conditioning systems
103	PLC Controller	control system	Programmable controllers for automatic control of test processes
104	Leak detection data analysis	data analysis	Statistical analysis of test data to assess the level of airtightness of a product or system and to identify potential areas for improvement.
105	Sealing surfaces	place	Surfaces in products or systems that need to be sealed
106	Seal failure	impunity	Deterioration or loss of sealing performance
107	Sealing process	arts and crafts	Manufacturing process to realize sealing
108	surface treatment	arts and crafts	The treatment of the product surface, such as sandblasting, polishing, plating, etc.. Surface treatment can improve the surface roughness of the product, improve sealing performance
109	Molding process	arts and crafts	Various molding processes are used in the manufacturing of products, such as injection molding, die casting, stamping, and so on. Different molding processes have different effects on the airtightness of products
110	injection molding	arts and crafts	A common plastic molding process used to manufacture sealing components with complex shapes.
111	punch	arts and crafts	Stamping is a forming method that utilizes a press and a die to apply pressure to a metal sheet to produce plastic deformation or separation, thereby obtaining a workpiece of the desired shape and size. The stamping process is widely used in automotive manufacturing for the production of body covering parts, structural parts, etc.
112	Die casting process	arts and crafts	The molten metal under high pressure at high speed into the mold cavity, and under pressure solidification molding casting method. Die casting has the advantages of high dimensional accuracy, good surface finish, etc., but the die casting process may produce porosity, shrinkage and other defects, affecting the airtightness of the
113	Integrated Die Casting	arts and crafts	One-piece die casting is a way to manufacture multiple parts that would otherwise need to be assembled together through stamping, welding, and other processes through one-piece die casting molding. This technology usually uses a large die-casting machine and a special mold, the molten metal (usually aluminum alloy) under high pressure into the mold cavity, rapid solidification molding
114	soldered	arts and crafts	A commonly used joining and sealing process, where the quality of the weld has a significant impact on the airtightness.
115	laser welding	arts and crafts	Welding with a laser enables high-precision, high-quality sealing.
116	ultrasonic welding	arts and crafts	A welding method that utilizes high-frequency vibration to fuse together the contact surfaces of materials such as plastic or metal. Ultrasonic welding is fast and efficient, but the quality of the weld has an important effect on the airtightness, for example, a weak weld may lead to leakage.
117	Heat Fusion Welding	arts and crafts	Welding by heating melted material, suitable for sealing plastic and other materials.
118	weld defect	defective	Defects that may occur during the welding process, such as under-welding, porosity, cracks, etc., can reduce the gas tightness of the product.
119	waterproof rating	performances	A rating that describes the water resistance of a product, usually expressed as an ATM or IP rating.
120	IP Protection Rating	standardize	Ingress Protection Rating (IP rating) describes a product's protection against solids (e.g. dust) and liquids (e.g. water) The IP rating consists of two numbers, the first number indicating the level of protection against solids, and the second number indicating the level of protection against liquids. For example, IP67 means that a product is completely dustproof and can be immersed in water up to 1 meter deep for 30 minutes. ip ratings are also related to airtightness testing, where a high IP rating usually means better airtightness!
121	ATM Waterproof	standardize	ATM (Atmosphere) is a unit of air pressure used to describe the waterproof rating of a product, e.g. 3ATM, 5ATM, 10ATM, etc. It indicates the water pressure that a product can withstand under static pressure equivalent to a certain depth. It indicates the amount of water pressure equivalent to a certain depth of water that a product can withstand under static pressure. It is important to note that the ATM rating does not mean that the product can actually be used at that depth, but rather the pressure it can withstand. For example, 5ATM means that the product can withstand static pressure equivalent to a depth of 50 meters, but it does not mean that it can be used for diving activities at a depth of 50 meters. It is more suitable for everyday waterproofing, such as hand washing and getting wet. This standard is often associated with the ISO 22810 standard.
122	Leak Detection Standards	standardize	Leak detection standards developed by various industry and international organizations such as ISO, ASTM and GB/T.
123	ISO 22810	standardize	The international standard describing the water resistance of watches is closely related to the ATM water resistance rating. This standard defines test methods and requirements for different water resistance ratings, such as immersion tests, pressure tests, etc.
124	Standardization of leak detection	standardize	Development and implementation of leak detection standards
125	ISO 9001	standardize	Quality management system standards, including requirements for the testing process
126	ISO/TS 16949	standardize	Quality management system standards for the automotive industry, with special requirements for airtightness testing
127	ASTM Standard	standardize	Standards developed by the American Society for Testing and Materials (ASTM), which include several standards related to airtightness testing, such as ASTM F2338 (package leakage testing), ASTM D3078 (bubble leakage testing), and so on.
128	ISO standard	standardize	Standards developed by the International Organization for Standardization (ISO), which also contains several standards related to airtightness testing, such as ISO 13353 (Packaging - complete and semi-finished packages - testing using internal pressure)
129	MIL-STD Standard	standardize	U.S. Military Standards, which contain a number of airtightness testing standards for specific military applications
130	GB/T Standard	standardize	Chinese national standard, containing several standards related to airtightness testing
131	Leak detection training	cultivate	Training of testing personnel in proper testing methods and operating procedures
132	Leak Detection Case Study	analyze	Learn lessons and improve detection by analyzing actual leak detection cases
133	Leakage Failure Analysis	analyze	Analyzing the causes and mechanisms of leakage
134	Leak Detection Technology Trends	tendencies	Focus on new detection technologies and methods, such as artificial intelligence-based leak detection, micro leak detection, etc.
135	air tightness test	experimental	Tests to verify the airtightness of products
136	Airtightness verification	validate (a theory)	Demonstrate, by test or other means, that the airtightness of the product meets the requirements.
137	Leak Detection Media	medium	The medium used to detect leaks, which can be gases or liquids, e.g. air, nitrogen, helium, water, etc.
138	Sealing medium	medium	Media in contact with the seal, such as gases, liquids, etc.
139	leakage prevention	step	Take measures to prevent leaks from occurring
140	leakage control	step	Control leakage within permissible limits
141	temperature compensation	functionality	Temperature compensation of the test equipment to eliminate the effect of ambient temperature changes on the test results
142	Leak detection data logging	functionality	Record test data, including time, pressure, leak rate, etc.
143	Storage Methods	functionality	Detection of how the data is stored, e.g., internal memory, external memory, computer database, etc.
144	communication interface	functionality	Interfaces for communication between the inspection device and other devices or computers, e.g. RS-232, USB, Ethernet, etc.
145	communication protocols	functionality	Protocols used by the test equipment to communicate with other equipment or computers, e.g. Modbus, TCP/IP, etc.
146	Printing method	functionality	Printing of test results, e.g. thermal, inkjet, etc.
147	after-sales service	service	After-sales service provided by equipment suppliers, including installation, commissioning, maintenance, training, etc.
148	operating environment	matrix	Detecting the environmental conditions under which the equipment normally operates, including temperature, humidity, air pressure, etc.
149	Leak Detection Report	file	Reports containing information on test results, test conditions, etc.
150	leak detection software	hardware	Software for controlling testing equipment, data acquisition and analysis

Summarize

JCGK is committed to providing customers with high-qualityAir tightness testing equipmentand solutions. Through the introduction of this article, I believe you have a deeper understanding of airtightness testing. If you have any needs or questions about airtightness testing, please feel free to contact us.

Airtightness testing dry! 150 core keywords in one article illustration — *Airtightness Testing Industry Leader｜Fortune 500 Preferred Partner*

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As an industry leader in the field of airtightness testing for more than ten years, Precision Engineering provides you with a full range of testing solutions.

Our product line coversAirtightness Tester,Waterproof Tester,Burst Tester,Leak test equipmentcap (a poem)Respiratory Cycle TesterWith the advantageous price of domestic production, we provide excellent quality comparable to that of imported products.

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