You did post it, looks like it was pulled down pw. The steemit has the same info but maybe best to copy paste
Mixing the A and B "Stock" Solutions
STS is stored as two solutions, A & B. When kept sealed, cool and without exposure to light, they are very stable. Separately, they can be stored for months without issue. Once mixed their life span is about 1 month, but only if kept cool, sealed and in the dark.
This mix is diluted with r/o water before spraying on plants.
Stock Solution A
- Fill the pyrex 2-cup measure to the 500ml line with r/o water
- Measure .5 Grams of Silver Nitrate using the digital scale
- Slowly pour the silver nitrate crystals in to the 500ml of r/o water while stirring
- Stir until dissolved (15 seconds)
- Pour the solution in to the 500ml brown glass bottle and cap it tightly
- LABEL the bottle "STS PART A" in a clear and long lasting fashion
- Thoroughly wash and rinse the pyrex measuring cup
Stock Solution B
- Fill the pyrex 2-cup measure to the 500ml mark with r/o water
- Measure 2.5 Grams of Sodium Thiosulfate Anhydrous OR 3.9Grams of Sodium Thiosulfate Pentahydrate
- Add the Sodium Thiosulfate to the r/o water while stirring
- Stir until completely dissolved (30-45 seconds)
- Pour the Sodium Thiosulfate solution in to a 500ml brown glass bottle and cap it tightly
- LABEL the bottle "STS PART B" in a clear and long lasting fashion
- Throughly wash and rinse the pyrex measuring cup
I store these solutions in the 500ml brown glass bottles and mix fresh before diluting for spraying. It is best to keep them in the fridge.
ALWAYS Mix Part A into Part B. Pour Part B in a container first and then add Part A while stirring. The measurements listed here make 1 quart and should be transferred to a dark glass spray bottle.
This amount provides plenty of solution for one or two 2' tall plant, sprayed every 5 days for 30 days.
When stored in a dark cool place, the mixed solution is effective for approximately 1 month.
For 1 Quart of Solution:
Measure 50ml of Part B solution
Pour Part B solution into the Pyrex measuring cup
Measure 50ml of Part A Solution
While stirring the stock solution B in the measuring cup rapidly, gently pour 50ml of Part A solution in to the measuring cup. Go slowly, yet quickly enough to completely mix them within 30 seconds.
REMEMBER it's IMPORTANT to DILUTE!
Without dilution this solution will burn plants When the above directions are followed you will have 100ml of mixed stock solution in a pyrex measuring cup. Pour this solution into a 1 quart, brown glass bottle with sprayer top and fill the bottle the rest of the way with r/o or distilled water. (800+ml)
Staying Safe:
WEAR PERSONAL PROTECTION GEAR, including gloves, mask and goggles/glasses. You'll want to keep this off your skin and out of your mouth/lungs. Sodium Thiosulfate has no listed toxicity but it is an irritant with repeated exposure. Silver nitrate will stain surfaces brown, only light stains when mixed with sodium thiosulfate and diluted.
Application:
Spray every 5 days, starting 5 days before changing the lighting to a flowering schedule. Spray the nodes of the plant every 5 days until 10% of the flower pods are open and dumping pollen.
blue item number. 
