NTEK Group
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High pressure steam (autoclave) testing, i.e. high temperature, high humidity and high pressure testing, is a highly accelerated test method used to evaluate the ability of electronic products to withstand humid heat. NTEK provides autoclave testing services for electronic product quality evaluation, failure analysis, reliability testing and more.
High pressure steam testing mainly examines two aspects:
1. Heat resistance
2. Resistance to high-temperature media
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Heat resistance test:
Fill the pouch with water to one half to two thirds of its volume, then degas and seal it, place it in an autoclave for 30 min, cool under reduced pressure to room temperature and take it out, then check the pouch for obvious deformation, interlayer delamination, heat seal peeling and other abnormalities.
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High-temperature media resistance test:
Fill the pouch with 4% acetic acid, 1% sodium sulfide, 5% sodium chloride aqueous solution and refined vegetable oil respectively, then degas and seal it, and cook it at 121℃ for 40 min in an autoclave equipped with a back-pressure cooling device, cooling while keeping the pressure constant.
Post-autoclave visual inspection:
The pouch surface should be flat, without wrinkles, bubbles or deformation, and free of delamination and leakage; if any of these defects is present, the sample is deemed non-conforming.
Autoclave test standards
QB/T 5344-2018 Test method for retort resistance of liquid inks
T/ZZB 0606-2018 Gravure printing retort-resistant plastic film composite inks
T/ZZB 1821-2020 Stamping- and retort-resistant aluminum foil composite rigid sheets
ASTM F1484-2005 Standard test methods for performance of steam cookers
BS EN ISO 105-E10-1997 Textiles — Tests for colour fastness — Part E10: Colour fastness to steaming
DIN 52308-1984 Boiling test for safety glass
DIN 54032-1984 Testing of textiles for colour fastness; determination of fastness to steaming of dyeings and prints
GOST 20509-1975 Medical sterilization equipment — Sterilization chambers — Autoclaves — Terms and definitions
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