On  Mar 9 , at 11:33 AM, Pat Naughtin wrote:

> The USA tends to take the "soft metric conversion" approach. You can see this 
> in labels such as "1 pint (473 mL)" where metric conversion is simply added 
> to the old pre-metric measuring words in a secondary position. The USA has 
> not yet made the transition from "soft metric conversion" to "hard metric 
> conversion" where (say) "1 pint (473 mL)" becomes "500 mL" with a rounded 
> whole number and without any reference to old measuring words.


I think the US is more "mixed" in it's marketing and labeling than it is "all" 
soft conversion. 
I just selected six containers of fluid products in my kitchen and bathroom and 
found these results:


=======================

Product
-----------------------------------------
Contents of the container
exactly as on the label

=======================

Soft drink
-----------------------------------------
2 LITERS 
(67.6 FL OZ) 
2 QT 3.6 FL OZ

=======================

Liquid hand soap
-----------------------------------------
8.75 fl oz/259 mL

=======================

Shampoo
-----------------------------------------
23.7 FL OZ (700 mL)

=======================

Bleach
-----------------------------------------
182 FL OZ (5.68 QT) 5.38 L

=======================

Milk
-----------------------------------------
HALF GALLON (1.89L)

=======================

Bottled water
-----------------------------------------
16.8 FL OZ (500 mL)

=======================


Three (50%) are clearly hard conversions to simple, round numbers of 
millilitres (even with correct symbol, "mL"), the 2 L, 500 mL and 500 mL 
containers. 

Only (17%) one is blatantly soft conversion, the half gallon one. 

The remaining two (33%), the 8.75 fl oz and 183 fl oz, are admittedly probably 
soft conversion. However, NEITHER the Olde English value nor the metric value 
is a simple, rounded number. I see this as being a case of, "who can really 
tell which is the original and which is the converted value" and "if one can't 
tell, it doesn't really matter".




Bill Hooper
Member, US Metric Association
www.metric.org



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