Photography. Processing waste. Determination of ammoniacal nitrogen (microdiffusion method) Ingestion-build-156411 Wood preservative solutions containing bis(tri-n-butyltin)

Wood preservative solutions containing bis(tri-n-butyltin) oxide are usually formulated with technical grade material containing at least 95 % bis(tri-n-butyltin) oxide

Square: outside dimensions up to 500mm x 500mm

for security applications

unreinforced concrete paving flags and complementary fittings - Requirements and test methods

when the material is used in appropriate applications

Photography. Processing waste. Determination of ammoniacal nitrogen (microdiffusion method) Ingestion-build-156411 Wood preservative solutions containing bis(tri-n-butyltin)1 Scope This International Standard specifies a method for the determination of ammonia and other volatile amines that can be liberated from photographic processing wastes by strong alkali, the results being expressed in terms of nitrogen. The method is applicable for the determination of the ammonia concentration of typical photoprocessing wastes in the range of 10 mg l to 200 mg l of ammonia or 8 mg l to 160 mg l of nitrogen. Other volatile amines