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Tin tank standards?

If someone could please fill me in on what the standard concentrations should be for an alkaline tin electro tin solution. I am especially interested in what they should be for Tin Metal, Stannate and Hydroxide.

Gregg Matti
switchgear - Hampton, GA, USA
2006

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The Metal Finishing Guidebook gives a recipe for rack plating as 100 g/L potassium stannate, 40 g/L tin & 15 g/L potassium hydroxide. For barrel plating, the respective concentrations are 200, 80 & 23 g/L. Note: potassium stannate refers to the trihydrate form.

ASTM B545, 'Standard Specification for Electrodeposited Coatings of Tin,' gives thickness & quality requirements.
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- Goleta, California
Finishing.com honored Ken for his countless carefully researched responses. He passed away May 14, 2015.
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2006

We are plating tin onto copper surfaces as a protectant. Basically anywhere that the metal is going to be touching any other metal.

Gregg Matti
Plating/Finishing - Hampton, GA, USA
2006