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1,132 bytes added ,  09:09, 23 June 2021
Delete wrong mention
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== Quantities ==
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Collecting quantity isn't so simple:
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* we can see various units
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* we can see various ways of dealing with net weight and drained weight
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* sometimes portions are well specified and sometimes not
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* we can see many ways of ordering printed data on the packages
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* ...
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=== Units ===
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...
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=== e sign ===
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The ℮ sign (for "[https://en.wikipedia.org/wiki/Estimated_sign estimated sign]") is used in Europe and other countries, at least Australia: https://www.industry.gov.au/sites/default/files/2019-04/guide-to-the-average-quantity-system.pdf (p. 12)
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 +
It seems to refer to the Average Quantity System (AQS) which is in use in Australia, Canada, European Union, India, Japan, New Zealand, South Africa and Switzerland -- source: https://www.sfa.gov.sg/docs/default-source/tools-and-resources/resources-for-businesses/avabriefingonaqsslides1 (slide 3).
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== How to enter the data ==
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For the moment, the best is to enter the data as it is printed on the product.
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== How to handle it ==
 
== How to handle it ==
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=== Logic to handle it ===
 
=== Logic to handle it ===
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...
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=== Existing libraries to parse weights and quantities ===
 
=== Existing libraries to parse weights and quantities ===
 
* https://github.com/iancanderson/ingreedy
 
* https://github.com/iancanderson/ingreedy
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**Useful to fix calorie calculation for some products
 
**Useful to fix calorie calculation for some products
 
* Calculate packaging weight by making the difference between actual weight and advertised weight
 
* Calculate packaging weight by making the difference between actual weight and advertised weight
* Calculate weight per volume for products (1dL of water is 1kg, but this changes for various products that also have a mention of their volume)
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* Calculate weight per volume for products (1dL of water is 1kg, but this changes for various products that also have a mention of their volume, e.g. milk)
 
* Some products will have multilingual weights
 
* Some products will have multilingual weights
 
** we can check that the conversion is well done if we have both values
 
** we can check that the conversion is well done if we have both values
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| or  ||-  || - || - || net égoutté || 2210 || g
 
| or  ||-  || - || - || net égoutté || 2210 || g
 
|-
 
|-
| 3 x [200 g (130 g net égoutté), 212 ml] ||
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| 3 x [200 g (130 g net égoutté), 212 ml] || 3 || - || - || - || 200 || g
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|-
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| or || 3 || - || - || - || 212 || ml
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|-
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| or || 3 || - || - || net egoutté || 130 || g
 
|-
 
|-
 
|  330 g (dont 180 g net), 370 mL ||-  || - || - || - || 330 || g
 
|  330 g (dont 180 g net), 370 mL ||-  || - || - || - || 330 || g
 
|-
 
|-
330 g (dont 180 g net), 370 mL ||-  || - || - || - || 370 || mL
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or ||-  || - || - || - || 370 || mL
 
|-
 
|-
| 330 g (dont 180 g net), 370 mL ||-  || - || - || net || 180 || g
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|         or ||-  || - || - || net || 180 || g
 
|-
 
|-
 
| 28 g - 20 dragées || -  || - || 20 || dragées || 28 || g
 
| 28 g - 20 dragées || -  || - || 20 || dragées || 28 || g
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| 260 g (26 portions de 10 g) || -  || - || - || - || 260 || g
 
| 260 g (26 portions de 10 g) || -  || - || - || - || 260 || g
 
|-
 
|-
| 130 g pour 20 galettes || - || 130 || g || -
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| 130 g pour 20 galettes || - || - || 20 || galettes || 130 || g
 
|-
 
|-
| or || 20 || - || - || galettes
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| 280 ml - 310 g || || - || - ||- || 280 || ml
 
|-
 
|-
| 280 ml - 310 g || - || 280 || ml || -
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| or || - -  || - || - ||- || 310 || g
 
|-
 
|-
| || - || 310 || g || -
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| 25 sachets || 25 || sachets || - || - || - || -
 
|-
 
|-
| 25 sachets || 25 || - || - || sachets
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| 220 g (1 personne) || - || - || - || - || 220 || g
 
|-
 
|-
| 220 g (1 personne) || - || 220 || g
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| 128 g (16 bâtonnets de 2 cubes) || - || - || 16 || bâtonnets || 128 || g
 
|-
 
|-
| 128 g (16 bâtonnets de 2 cubes) || - || 128 || g
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| or || - || - || 16x2 || cubes || 128 || g
 
|-
 
|-
|  || 16 || - || - || bâtonnets
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| 12 (calibre Moyen => 53 à 63 g) || - || - || 12 || calibre moyen || 53 à 63 || g
|-
  −
|  || 16x4 || - || - || cubes
  −
|-
  −
| 12 (calibre Moyen => 53 à 63 g) || 12 || - || - || calibre moyen
   
|-
 
|-
 
| 8 sachets de 4 || 8 || sachets || 4 || - || - || -
 
| 8 sachets de 4 || 8 || sachets || 4 || - || - || -
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| nestle || 228g (4x57g) / 48 cl (4x12cl) || [http://fr.openfoodfacts.org/produit/2000000003897 (link)]
 
| nestle || 228g (4x57g) / 48 cl (4x12cl) || [http://fr.openfoodfacts.org/produit/2000000003897 (link)]
 
|}
 
|}
 
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[[Category:OCR]]
 
[[Category:ProductOpener]]
 
[[Category:ProductOpener]]

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