{
  "version": "2026-09-24-v22",
  "scope": "24 cas attendus calculés séparément en arithmétique décimale à partir des définitions indiquées, puis comparés au moteur du site. Valeurs de contrôle, pas mesures réelles. Tolérance relative de comparaison 1e-10.",
  "rows": [
    {
      "id": "v22-1",
      "key": "distance/pied-metre",
      "amount": "5 pieds 8 pouces",
      "direction": "forward",
      "expected": 1.7272,
      "expectedDecimal": "1.7272",
      "unit": "m",
      "title": "5 pieds 8 pouces en mètres",
      "note": "68 pouces × 0,0254 m ; pied international.",
      "reference": "/referentiel-unites.html#pied"
    },
    {
      "id": "v22-2",
      "key": "distance/pied-centimetre",
      "amount": "5′ 11″",
      "direction": "forward",
      "expected": 180.34,
      "expectedDecimal": "180.34",
      "unit": "cm",
      "title": "5 pieds 11 pouces en centimètres",
      "note": "71 pouces × 2,54 cm ; écriture composée.",
      "reference": "/referentiel-unites.html#pouce"
    },
    {
      "id": "v22-3",
      "key": "distance/pied-centimetre",
      "amount": "5,11",
      "direction": "forward",
      "expected": 155.7528,
      "expectedDecimal": "155.7528",
      "unit": "cm",
      "title": "5,11 pieds décimaux en centimètres",
      "note": "Une décimale de pied ne représente pas des pouces.",
      "reference": "/referentiel-unites.html#pied"
    },
    {
      "id": "v22-4",
      "key": "distance/pied-centimetre",
      "amount": "5 pieds 11½ pouces",
      "direction": "forward",
      "expected": 181.61,
      "expectedDecimal": "181.610",
      "unit": "cm",
      "title": "5 pieds 11½ pouces en centimètres",
      "note": "La demi-unité porte sur les pouces.",
      "reference": "/referentiel-unites.html#pouce"
    },
    {
      "id": "v22-5",
      "key": "distance/pouce-centimetre",
      "amount": "3/8",
      "direction": "forward",
      "expected": 0.9525,
      "expectedDecimal": "0.95250",
      "unit": "cm",
      "title": "Trois huitièmes de pouce",
      "note": "Fraction de pouce international.",
      "reference": "/referentiel-unites.html#pouce"
    },
    {
      "id": "v22-6",
      "key": "distance/kilometre-pouce",
      "amount": "0,0254",
      "direction": "forward",
      "expected": 1000.0,
      "expectedDecimal": "1000",
      "unit": "in",
      "title": "0,0254 km en pouces",
      "note": "25,4 m ÷ 0,0254 m par pouce.",
      "reference": "/referentiel-unites.html#pouce"
    },
    {
      "id": "v22-7",
      "key": "distance/metre-centimetre",
      "amount": "0,805",
      "direction": "forward",
      "expected": 80.5,
      "expectedDecimal": "80.5",
      "unit": "cm",
      "title": "0,805 m en centimètres",
      "note": "Centième de mètre.",
      "reference": "/referentiel-unites.html#centimetre"
    },
    {
      "id": "v22-8",
      "key": "distance/metre-kilometre",
      "amount": "49",
      "direction": "forward",
      "expected": 0.049,
      "expectedDecimal": "0.049",
      "unit": "km",
      "title": "49 m en kilomètres",
      "note": "Valeur avant tout arrondi de présentation.",
      "reference": "/referentiel-unites.html#kilometre"
    },
    {
      "id": "v22-9",
      "key": "distance/mille-nautique-kilometre",
      "amount": "12,5",
      "direction": "forward",
      "expected": 23.15,
      "expectedDecimal": "23.1500",
      "unit": "km",
      "title": "Une étape de 12,5 NM",
      "note": "Mille marin international de 1 852 m.",
      "reference": "/referentiel-unites.html#mille-marin"
    },
    {
      "id": "v22-10",
      "key": "poids/gramme-milligramme",
      "amount": "0,0025",
      "direction": "forward",
      "expected": 2.5,
      "expectedDecimal": "2.5",
      "unit": "mg",
      "title": "0,0025 g en milligrammes",
      "note": "Préfixe milli ; aucune indication de dose.",
      "reference": "/referentiel-unites.html#gramme"
    },
    {
      "id": "v22-11",
      "key": "poids/gramme-once",
      "amount": "3/8",
      "direction": "reverse",
      "expected": 10.631071171875,
      "expectedDecimal": "10.631071171875",
      "unit": "g",
      "title": "Trois huitièmes d’once de masse",
      "note": "Once avoirdupois.",
      "reference": "/referentiel-unites.html#once-masse"
    },
    {
      "id": "v22-12",
      "key": "poids/livre-gramme",
      "amount": "1 lb 8 oz",
      "direction": "forward",
      "expected": 680.388555,
      "expectedDecimal": "680.388555",
      "unit": "g",
      "title": "1 livre et 8 onces en grammes",
      "note": "16 onces avoirdupois par livre.",
      "reference": "/referentiel-unites.html#livre"
    },
    {
      "id": "v22-13",
      "key": "poids/kilogramme-livre",
      "amount": "12 lb 8 oz",
      "direction": "reverse",
      "expected": 5.669904625,
      "expectedDecimal": "5.669904625",
      "unit": "kg",
      "title": "12 livres et 8 onces en kilogrammes",
      "note": "Conversion inverse du formulaire kg/lb.",
      "reference": "/referentiel-unites.html#livre"
    },
    {
      "id": "v22-14",
      "key": "poids/kilogramme-stone",
      "amount": "11 st 5 lb",
      "direction": "reverse",
      "expected": 72.12118683,
      "expectedDecimal": "72.12118683",
      "unit": "kg",
      "title": "11 stones et 5 livres en kilogrammes",
      "note": "14 livres par stone ; total de 159 livres.",
      "reference": "/referentiel-unites.html#stone"
    },
    {
      "id": "v22-15",
      "key": "poids/tonne-livre",
      "amount": "2000",
      "direction": "reverse",
      "expected": 0.90718474,
      "expectedDecimal": "0.90718474",
      "unit": "t",
      "title": "2 000 lb en tonnes métriques",
      "note": "Masse d’une short ton exprimée en tonnes métriques.",
      "reference": "/referentiel-unites.html#short-ton"
    },
    {
      "id": "v22-16",
      "key": "poids/microgramme-milligramme",
      "amount": "0,5",
      "direction": "forward",
      "expected": 0.0005,
      "expectedDecimal": "0.0005",
      "unit": "mg",
      "title": "0,5 µg en milligrammes",
      "note": "Facteur mille ; masse, pas concentration.",
      "reference": "/referentiel-unites.html#microgramme"
    },
    {
      "id": "v22-17",
      "key": "vitesse/kilometre-heure-mph",
      "amount": "60",
      "direction": "reverse",
      "expected": 96.56064,
      "expectedDecimal": "96.560640",
      "unit": "km/h",
      "title": "60 mph en km/h",
      "note": "Mile terrestre international.",
      "reference": "/referentiel-unites.html#mph"
    },
    {
      "id": "v22-18",
      "key": "vitesse/noeud-kilometre-heure",
      "amount": "12",
      "direction": "forward",
      "expected": 22.224,
      "expectedDecimal": "22.224",
      "unit": "km/h",
      "title": "12 nœuds en km/h",
      "note": "Un mille marin par heure.",
      "reference": "/referentiel-unites.html#noeud"
    },
    {
      "id": "v22-19",
      "key": "mathematique/acre-metre-carre",
      "amount": "0,25",
      "direction": "forward",
      "expected": 1011.7141056,
      "expectedDecimal": "1011.7141056",
      "unit": "m²",
      "title": "Un quart d’acre international",
      "note": "Pied international ; source NIST distinguant le survey foot.",
      "reference": "/referentiel-unites.html#acre"
    },
    {
      "id": "v22-20",
      "key": "mathematique/acre-pied-carre",
      "amount": "10890",
      "direction": "reverse",
      "expected": 0.25,
      "expectedDecimal": "0.25",
      "unit": "ac",
      "title": "10 890 pieds carrés en acres",
      "note": "66 ft × 165 ft ; acre international.",
      "reference": "/referentiel-unites.html#acre"
    },
    {
      "id": "v22-21",
      "key": "mathematique/litre-gallon",
      "amount": "5",
      "direction": "reverse",
      "expected": 18.92705892,
      "expectedDecimal": "18.927058920",
      "unit": "L",
      "title": "5 gallons liquides US en litres",
      "note": "Le gallon impérial donnerait une autre capacité.",
      "reference": "/referentiel-unites.html#gallon-us"
    },
    {
      "id": "v22-22",
      "key": "mathematique/litre-once",
      "amount": "32",
      "direction": "reverse",
      "expected": 0.946352946,
      "expectedDecimal": "0.9463529460000",
      "unit": "L",
      "title": "32 onces liquides US en litres",
      "note": "Volume US, pas once de masse.",
      "reference": "/referentiel-unites.html#once-liquide-us"
    },
    {
      "id": "v22-23",
      "key": "science/pascal-bar",
      "amount": "500",
      "direction": "forward",
      "expected": 0.005,
      "expectedDecimal": "0.005",
      "unit": "bar",
      "title": "500 Pa en bars",
      "note": "Le changement d’unité conserve la référence de pression.",
      "reference": "/referentiel-unites.html#bar"
    },
    {
      "id": "v22-24",
      "key": "science/atmosphere-bar",
      "amount": "2",
      "direction": "forward",
      "expected": 2.0265,
      "expectedDecimal": "2.0265",
      "unit": "bar",
      "title": "Deux atmosphères standard en bars",
      "note": "Référence définie, pas une mesure météo.",
      "reference": "/referentiel-unites.html#atmosphere"
    }
  ]
}