NQA
Active Water Treatment
Environmental & sustainable water treatment by Marine Biologists

1000`s of pages of practical  information & products
possible solution to
global warming 

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 |  AFM  oxygen probes  |  air diffusers  |  ozone  | mechanical filtration | swimming pools | chemical products | filtration media | biofilter media | safe drinking water |

Graphs & tables home page

CONVERSION FACTORS

To convert From		To	              Multiply by
Acre			square metres 		4047
Acre foot		cubic metres 		1234
Btu			J			1056
Btu			Kw hr 			0.293/1000
Btu/sec			W 			1054
Calorie			J			4.184
Cal/g			J/Kg.			4184
Cubic yard		cubic metres 		0.7646
Fathom			metres			1.829
Foot			metre 			0.3048
Cubic feet/sec		cubic metres/sec	0.78/100,000
Cubic feet		cubic metre 		0.0283
Square feet		square metre 		0.0929
Gallon			cubic metres		4.546/1000
Gram			Kg 			1/1000
Horse power		W 			745.7
Inch			metres 			0.0254
Square inch		square metres		6.452/10000
Cubic inch		cubic metres		1.639/100000
Kilogram force		N			9.807
Kilowatt hours		J			3600000
Litre			cubic metres 		0.001
MM mercury		Pa 			133.3
Pound force		N			4.448
Pound mass		Kg 			0.4536
Square yard		square metre 		0.8361
Ton (metric)		Kg			1000
Watt hour		J			3600
Yard			metre			0.9144 
NQA
Active Water Treatment
Environmental & sustainable water treatment by Marine Biologists

1000`s of pages of practical  information & products
possible solution to
global warming 

factory.jpg (3825 bytes)

 |  AFM  oxygen probes  |  air diffusers  |  ozone  | mechanical filtration | swimming pools | chemical products | filtration media | biofilter media | safe drinking water |