The specifications are as follows:
1. Sodium silicofluoride should be obtained from an internationally renowned manufacturer for portable water treatment and production. It should be provided in the form of a free-flowing granular powder, and it must not contain any soluble minerals or organic substances in quantities sufficient for food Water people cause harm.

2. Chemical composition:
Usable fluoride ion 59.4% w/w (weight/weight)
Water-insoluble substance 0.5% (w / w weight / weight)
Moisture content 0.5% (w/w weight/weight)
Heavy substances are expressed as lead 0.05% (w/w weight/weight)

3. Screening analysis
A: The materials provided should meet the following conditions:
I) 40 mesh screen (425 microns)-pass rate is not less than 98%
II) 325 mesh sieve (45 microns)-at least 25% through
B: The mesh sieve number mentioned above refers to the U. S. Standard sieve number.
4. Packaging requirements:
Each polypropylene (PP) bag contains 25 kg, with polyethylene inside to prevent moisture.
Label each bag:
Chemical name
Net weight
Production Date
Expiry date
Manufacturer name
Manufacturer name