A. Raw Material (Adsorbent) Performance Requirements
Inspection Items
Indicators
Testing or Inspection Methods
PH
3.5~8.5
Measured by pH meter of aqueous solution
Conductivity
≤0.3S/m
Measured by conductivity meter of aqueous solution
Soluble Substance Content
≤2.0%
Filtration evaporation method of aqueous solution
Particle Size
≤0.25mm ≤2.0%
≤6.3mm 100%
Screened by standard metal sieve
Unit Moisture Absorption Capacity
（23℃、40%RH）
≥6g
Tested by dynamic method or constant temperature and humidity chamber method for moisture absorption capacity
百分比后根据单位重量换算而得
Unit Weight ②
≤39g
Unit weight value is determined based on moisture absorption capacity percentage before production, and actual unit weight value is confirmed based on the net weight of the adsorbent in the desiccant bag after production
Unit Volume
≤1125px3
Calculated based on unit weight after measuring bulk density
B. Packaging Material (Material of Desiccant Bag, Permeable Packaging) Performance Requirements
Inspection Items
Indicators
Testing or Inspection Methods
Dust Resistance
Type A: ≤10mg/u
Dust collected and weighed after packaged drop test
Type B： ≤1mg
Moisture Absorption Rate
23℃、40%RH
≤16u： ≥0.25g/7h·u
Weight gain tested by dynamic adsorption for 7 hours with packaging
32u： ≥0.1 g/7h·u
Printing and Marking
At least the following contents must be printed:
Weight is not allowed to be marked
Visual Inspection
C. Packaging Bag (Barrier Packaging)
Inspection Items
Indicators
Testing or Inspection Methods
Water Vapor Transmission Rate
23℃、85%RH
≤0.5g/m2·24h
Tested by electrolytic method for water vapor transmission rate
Humidity Indicator Card
8% point card per bag
Visual Inspection
Printing and Marking
The following contents must be printed (in English and German):
If only part is taken, the packaging should be immediately sealed
Our company has over 20 years of industry experience, and our products have passed environmental testing and dimethyl fumarate testing. We can provide SGS and DMF test reports. In 2022, we obtained the German DIN55473 certification, which represents highquality standards in the desiccant industry. We adhere to the business philosophy of "Customer First, Striving for Progress" and the principle of "Customer First" to provide high-quality services to our customers, aiming for mutual survival and win-win cooperation with our clients.
简体中文
English
