The Final Demand-Intermediate Demand (FD-ID) system replaced the Producer Price Index (PPI) Stage-of-Processing (SOP) system as PPIs primary aggregation system with the release of data for January 2014. The FD-ID system expands coverage beyond that of the SOP system through the addition of services, construction, exports, and government purchases.
Ammonia Levels. Ammonia Levels. Ammonia smell in urine means possible health dangers, especially to rabbits. But here's a way to reduce or eliminate ammonia fumes and levels safely and easily.mmonia Levels. Ammonia smell in urine means possible health dangers, especially to rabbits. But here's a way to reduce or eliminate ammonia fumes and levels safely and easily.
Source: Ammonia is commonly used in household cleaning supplies and is technically called as ammonium hydroxide. It is useful for cleaning glass and surface, can be used as jewelry cleaning solutions, and can also be used as disinfectant aerosol sprays.Read to know is ammonia a safe cleaning agent.ource: Ammonia is commonly used in household cleaning supplies and is technically called as ammonium hydroxide. It is useful for cleaning glass and surface, can be used as jewelry cleaning solutions, and can also be used as disinfectant aerosol sprays.