The answer is no. Please read below mentioned three reasons.
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Material and Manufacturing Mismatch:
Constant temperature and humidity chamber wet-bulb gauze is mostly made of ordinary degreased cotton/blended fabrics, with short fibers and low density. Composite salt spray (salt spray + humidity + drying cycle) will cause the gauze to harden rapidly, form salt deposits, and shed fibers, clogging the nozzle and contaminating the sample.
2. Poor Corrosion Resistance:
Salt spray contains high concentrations of chloride ions, which easily corrodes, rots, and peels off ordinary gauze, making stable sampling/humidification impossible.
3. Non-compliance with Standards:
GB/T 10593.2, ASTM B117, and other standards require the use of specialized medical bandage gauze/salt spray testing gauze for salt spray sampling. Constant temperature and humidity chamber gauze does not meet these specifications.
Requirements for Gauze Used in Composite Salt Spray Testing (Must Meet Standards)
- Material: Pure cotton medical bandage gauze (long fiber, highly degreased, sizing-free, fluorescent-free)
- Specifications: Approximately 6cm wide, approximately 40g/m², warp and weft density approximately 11-13 threads/cm
- Pretreatment: Repeated rinsing with deionized water → boiling twice (15min each time) → drying to thoroughly remove impurities
- Applications: This gauze is used for salt spray deposition rate sampling, wet-bulb thermography, and sample moisturizing.
