<?php
/**
 * Zend Framework
 *
 * LICENSE
 *
 * This source file is subject to the new BSD license that is bundled
 * with this package in the file LICENSE.txt.
 * It is also available through the world-wide-web at this URL:
 * http://framework.zend.com/license/new-bsd
 * If you did not receive a copy of the license and are unable to
 * obtain it through the world-wide-web, please send an email
 * to license@zend.com so we can send you a copy immediately.
 *
 * @category   Zend
 * @package    Zend_Measure
 * @copyright  Copyright (c) 2005-2007 Zend Technologies USA Inc. (http://www.zend.com)
 * @version    $Id: Weight.php 3224 2007-02-05 22:08:48Z gavin $
 * @license    http://framework.zend.com/license/new-bsd     New BSD License
 */


/**
 * Implement needed classes
 */
require_once 'Zend/Measure/Exception.php';
require_once 'Zend/Measure/Abstract.php';
require_once 'Zend/Locale.php';


/**
 * @category   Zend
 * @package    Zend_Measure
 * @subpackage Zend_Measure_Weigth
 * @copyright  Copyright (c) 2005-2007 Zend Technologies USA Inc. (http://www.zend.com)
 * @license    http://framework.zend.com/license/new-bsd     New BSD License
 */
class Zend_Measure_Weight extends Zend_Measure_Abstract
{
    // Weight definitions
    const STANDARD = 'KILOGRAM';

    const ARRATEL               = 'ARRATEL';
    const ARTEL                 = 'ARTEL';
    const ARROBA_PORTUGUESE     = 'ARROBA_PORTUGUESE';
    const ARROBA                = 'ARROBA';
    const AS_                   = 'AS_';
    const ASS                   = 'ASS';
    const ATOMIC_MASS_UNIT_1960 = 'ATOMIC_MASS_UNIT_1960';
    const ATOMIC_MASS_UNIT_1973 = 'ATOMIC_MASS_UNIT_1973';
    const ATOMIC_MASS_UNIT_1986 = 'ATOMIC_MASS_UNIT_1986';
    const ATOMIC_MASS_UNIT      = 'ATOMIC_MASS_UNIT';
    const AVOGRAM               = 'AVOGRAM';
    const BAG                   = 'BAG';
    const BAHT                  = 'BAHT';
    const BALE                  = 'BALE';
    const BALE_US               = 'BALE_US';
    const BISMAR_POUND          = 'BISMAR_POUND';
    const CANDY                 = 'CANDY';
    const CARAT_INTERNATIONAL   = 'CARAT_INTERNATIONAL';
    const CARAT                 = 'CARAT';
    const CARAT_UK              = 'CARAT_UK';
    const CARAT_US_1913         = 'CARAT_US_1913';
    const CARGA                 = 'CARGA';
    const CATTI                 = 'CATTI';
    const CATTI_JAPANESE        = 'CATTI_JAPANESE';
    const CATTY                 = 'CATTY';
    const CATTY_JAPANESE        = 'CATTY_JAPANESE';
    const CATTY_THAI            = 'CATTY_THAI';
    const CENTAL                = 'CENTAL';
    const CENTIGRAM             = 'CENTIGRAM';
    const CENTNER               = 'CENTNER';
    const CENTNER_RUSSIAN       = 'CENTNER_RUSSIAN';
    const CHALDER               = 'CHALDER';
    const CHALDRON              = 'CHALDRON';
    const CHIN                  = 'CHIN';
    const CHIN_JAPANESE         = 'CHIN_JAPANESE';
    const CLOVE                 = 'CLOVE';
    const CRITH                 = 'CRITH';
    const DALTON                = 'DALTON';
    const DAN                   = 'DAN';
    const DAN_JAPANESE          = 'DAN_JAPANESE';
    const DECIGRAM              = 'DECIGRAM';
    const DECITONNE             = 'DECITONNE';
    const DEKAGRAM              = 'DEKAGRAM';
    const DEKATONNE             = 'DEKATONNE';
    const DENARO                = 'DENARO';
    const DENIER                = 'DENIER';
    const DRACHME               = 'DRACHME';
    const DRAM                  = 'DRAM';
    const DRAM_APOTHECARIES     = 'DRAM_APOTHECARIES';
    const DYNE                  = 'DYNE';
    const ELECTRON              = 'ELECTRON';
    const ELECTRONVOLT          = 'ELECTRONVOLT';
    const ETTO                  = 'ETTO';
    const EXAGRAM               = 'EXAGRAM';
    const FEMTOGRAM             = 'FEMTOGRAM';
    const FIRKIN                = 'FIRKIN';
    const FLASK                 = 'FLASK';
    const FOTHER                = 'FOTHER';
    const FOTMAL                = 'FOTMAL';
    const FUNT                  = 'FUNT';
    const FUNTE                 = 'FUNTE';
    const GAMMA                 = 'GAMMA';
    const GIGAELECTRONVOLT      = 'GIGAELECTRONVOLT';
    const GIGAGRAM              = 'GIGAGRAM';
    const GIGATONNE             = 'GIGATONNE';
    const GIN                   = 'GIN';
    const GIN_JAPANESE          = 'GIN_JAPANESE';
    const GRAIN                 = 'GRAIN';
    const GRAM                  = 'GRAM';
    const GRAN                  = 'GRAN';
    const GRANO                 = 'GRANO';
    const GRANI                 = 'GRANI';
    const GROS                  = 'GROS';
    const HECTOGRAM             = 'HECTOGRAM';
    const HUNDRETWEIGHT         = 'HUNDRETWEIGHT';
    const HUNDRETWEIGHT_US      = 'HUNDRETWEIGHT_US';
    const HYL                   = 'HYL';
    const JIN                   = 'JIN';
    const JUPITER               = 'JUPITER';
    const KATI                  = 'KATI';
    const KATI_JAPANESE         = 'KATI_JAPANESE';
    const KEEL                  = 'KEEL';
    const KEG                   = 'KEG';
    const KILODALTON            = 'KILODALTON';
    const KILOGRAM              = 'KILOGRAM';
    const KILOGRAM_FORCE        = 'KILOGRAM_FORCE';
    const KILOTON               = 'KILOTON';
    const KILOTON_US            = 'KILOTON_US';
    const KILOTONNE             = 'KILOTONNE';
    const KIN                   = 'KIN';
    const KIP                   = 'KIP';
    const KOYAN                 = 'KOYAN';
    const KWAN                  = 'KWAN';
    const LAST_GERMANY          = 'LAST_GERMANY';
    const LAST                  = 'LAST';
    const LAST_WOOL             = 'LAST_WOOL';
    const LB                    = 'LB';
    const LBS                   = 'LBS';
    const LIANG                 = 'LIANG';
    const LIBRA_ITALIAN         = 'LIBRE_ITALIAN';
    const LIBRA_SPANISH         = 'LIBRA_SPANISH';
    const LIBRA_PORTUGUESE      = 'LIBRA_PORTUGUESE';
    const LIBRA_ANCIENT         = 'LIBRA_ANCIENT';
    const LIBRA                 = 'LIBRA';
    const LIVRE                 = 'LIVRE';
    const LONG_TON              = 'LONG_TON';
    const LOT                   = 'LOT';
    const MACE                  = 'MACE';
    const MAHND                 = 'MAHND';
    const MARC                  = 'MARC';
    const MARCO                 = 'MARCO';
    const MARK                  = 'MARK';
    const MARK_GERMAN           = 'MARK_GERMANY';
    const MAUND                 = 'MAUND';
    const MAUND_PAKISTAN        = 'MAUND_PAKISTAN';
    const MEGADALTON            = 'MEGADALTON';
    const MEGAGRAM              = 'MEGAGRAM';
    const MEGATONNE             = 'MEGATONNE';
    const MERCANTILE_POUND      = 'MERCANTILE_POUND';
    const METRIC_TON            = 'METRIC_TON';
    const MIC                   = 'MIC';
    const MICROGRAM             = 'MICROGRAM';
    const MILLIDALTON           = 'MILLIDALTON';
    const MILLIER               = 'MILLIER';
    const MILLIGRAM             = 'MILLIGRAM';
    const MILLIMASS_UNIT        = 'MILLIMASS_UNIT';
    const MINA                  = 'MINA';
    const MOMME                 = 'MOMME';
    const MYRIAGRAM             = 'MYRIAGRAM';
    const NANOGRAM              = 'NANOGRAM';
    const NEWTON                = 'NEWTON';
    const OBOL                  = 'OBOL';
    const OBOLOS                = 'OBOLOS';
    const OBOLUS                = 'OBOLUS';
    const OBOLOS_ANCIENT        = 'OBOLOS_ANCIENT';
    const OBOLUS_ANCIENT        = 'OBOLUS_ANCIENT';
    const OKA                   = 'OKA';
    const ONCA                  = 'ONCA';
    const ONCE                  = 'ONCE';
    const ONCIA                 = 'ONCIA';
    const ONZA                  = 'ONZA';
    const ONS                   = 'ONS';
    const OUNCE                 = 'OUNCE';
    const OUNCE_FORCE           = 'OUNCE_FORCE';
    const OUNCE_TROY            = 'OUNCE_TROY';
    const PACKEN                = 'PACKEN';
    const PENNYWEIGHT           = 'PENNYWEIGHT';
    const PETAGRAM              = 'PETAGRAM';
    const PFUND                 = 'PFUND';
    const PICOGRAM              = 'PICOGRAM';
    const POINT                 = 'POINT';
    const POND                  = 'POND';
    const POUND                 = 'POUND';
    const POUND_FORCE           = 'POUND_FORCE';
    const POUND_METRIC          = 'POUND_METRIC';
    const POUND_TROY            = 'POUND_TROY';
    const PUD                   = 'PUD';
    const POOD                  = 'POOD';
    const PUND                  = 'PUND';
    const QIAN                  = 'QIAN';
    const QINTAR                = 'QINTAR';
    const QUARTER               = 'QUARTER';
    const QUARTER_US            = 'QUARTER_US';
    const QUARTER_TON           = 'QUARTER_TON';
    const QUARTERN              = 'QUARTERN';
    const QUARTERN_LOAF         = 'QUARTERN_LOAF';
    const QUINTAL_FRENCH        = 'QUINTAL_FRENCH';
    const QUINTAL               = 'QUINTAL';
    const QUINTAL_PORTUGUESE    = 'QUINTAL_PORTUGUESE';
    const QUINTAL_SPAIN         = 'QUINTAL_SPAIN';
    const REBAH                 = 'REBAH';
    const ROTL                  = 'ROTL';
    const ROTEL                 = 'ROTEL';
    const ROTTLE                = 'ROTTLE';
    const RATEL                 = 'RATEL';
    const SACK                  = 'SACK';
    const SCRUPLE               = 'SCRUPLE';
    const SEER                  = 'SEER';
    const SEER_PAKISTAN         = 'SEER_PAKISTAN';
    const SHEKEL                = 'SHEKEL';
    const SHORT_TON             = 'SHORT_TON';
    const SLINCH                = 'SLINCH';
    const SLUG                  = 'SLUG';
    const STONE                 = 'STONE';
    const TAEL                  = 'TAEL';
    const TAHIL_JAPANESE        = 'TAHIL_JAPANESE';
    const TAHIL                 = 'TAHIL';
    const TALENT                = 'TALENT';
    const TAN                   = 'TAN';
    const TECHNISCHE_MASS_EINHEIT = 'TECHNISCHE_MASS_EINHEIT';
    const TERAGRAM              = 'TERAGRAM';
    const TETRADRACHM           = 'TETRADRACHM';
    const TICAL                 = 'TICAL';
    const TOD                   = 'TOD';
    const TOLA                  = 'TOLA';
    const TOLA_PAKISTAN         = 'TOLA_PAKISTAN';
    const TON_UK                = 'TON_UK';
    const TON                   = 'TON';
    const TON_US                = 'TON_US';
    const TONELADA_PORTUGUESE   = 'TONELADA_PORTUGUESE';
    const TONELADA              = 'TONELADA';
    const TONNE                 = 'TONNE';
    const TONNEAU               = 'TONNEAU';
    const TOVAR                 = 'TOVAR';
    const TROY_OUNCE            = 'TROY_OUNCE';
    const TROY_POUND            = 'TROY_POUND';
    const TRUSS                 = 'TRUSS';
    const UNCIA                 = 'UNCIA';
    const UNZE                  = 'UNZE';
    const VAGON                 = 'VAGON';
    const YOCTOGRAM             = 'YOCTOGRAM';
    const YOTTAGRAM             = 'YOTTAGRAM';
    const ZENTNER               = 'ZENTNER';
    const ZEPTOGRAM             = 'ZEPTOGRAM';
    const ZETTAGRAM             = 'ZETTAGRAM';

    protected $_UNITS = array(
        'ARRATEL'               => array(0.5,            'arratel'),
        'ARTEL'                 => array(0.5,            'artel'),
        'ARROBA_PORTUGUESE'     => array(14.69,          'arroba'),
        'ARROBA'                => array(11.502,         '@'),
        'AS_'                   => array(0.000052,       'as'),
        'ASS'                   => array(0.000052,       'ass'),
        'ATOMIC_MASS_UNIT_1960' => array(1.6603145e-27,  'amu'),
        'ATOMIC_MASS_UNIT_1973' => array(1.6605655e-27,  'amu'),
        'ATOMIC_MASS_UNIT_1986' => array(1.6605402e-27,  'amu'),
        'ATOMIC_MASS_UNIT'      => array(1.66053873e-27, 'amu'),
        'AVOGRAM'               => array(1.6605402e-27,  'avogram'),
        'BAG'                   => array(42.63768278,    'bag'),
        'BAHT'                  => array(0.015,          'baht'),
        'BALE'                  => array(326.5865064,    'bl'),
        'BALE_US'               => array(217.7243376,    'bl'),
        'BISMAR_POUND'          => array(5.993,          'bismar pound'),
        'CANDY'                 => array(254,            'candy'),
        'CARAT_INTERNATIONAL'   => array(0.0002,         'ct'),
        'CARAT'                 => array(0.0002,         'ct'),
        'CARAT_UK'              => array(0.00025919564,  'ct'),
        'CARAT_US_1913'         => array(0.0002053,      'ct'),
        'CARGA'                 => array(140,            'carga'),
        'CATTI'                 => array(0.604875,       'catti'),
        'CATTI_JAPANESE'        => array(0.594,          'catti'),
        'CATTY'                 => array(0.5,            'catty'),
        'CATTY_JAPANESE'        => array(0.6,            'catty'),
        'CATTY_THAI'            => array(0.6,            'catty'),
        'CENTAL'                => array(45.359237,      'cH'),
        'CENTIGRAM'             => array(0.00001,        'cg'),
        'CENTNER'               => array(50,             'centner'),
        'CENTNER_RUSSIAN'       => array(100,            'centner'),
        'CHALDER'               => array(2692.52,        'chd'),
        'CHALDRON'              => array(2692.52,        'chd'),
        'CHIN'                  => array(0.5,            'chin'),
        'CHIN_JAPANESE'         => array(0.6,            'chin'),
        'CLOVE'                 => array(3.175,          'clove'),
        'CRITH'                 => array(0.000089885,    'crith'),
        'DALTON'                => array(1.6605402e-27,  'D'),
        'DAN'                   => array(50,             'dan'),
        'DAN_JAPANESE'          => array(60,             'dan'),
        'DECIGRAM'              => array(0.0001,         'dg'),
        'DECITONNE'             => array(100,            'dt'),
        'DEKAGRAM'              => array(0.01,           'dag'),
        'DEKATONNE'             => array(10000,          'dat'),
        'DENARO'                => array(0.0011,         'denaro'),
        'DENIER'                => array(0.001275,       'denier'),
        'DRACHME'               => array(0.0038,         'drachme'),
        'DRAM'                  => array(array('' => 0.45359237, '/' => 256), 'dr'),
        'DRAM_APOTHECARIES'     => array(0.0038879346,   'dr'),
        'DYNE'                  => array(1.0197162e-6,   'dyn'),
        'ELECTRON'              => array(9.109382e-31,   'e−'),
        'ELECTRONVOLT'          => array(1.782662e-36,   'eV'),
        'ETTO'                  => array(0.1,            'hg'),
        'EXAGRAM'               => array(1.0e+15,        'Eg'),
        'FEMTOGRAM'             => array(1.0e-18,        'fg'),
        'FIRKIN'                => array(25.40117272,    'fir'),
        'FLASK'                 => array(34.7,           'flask'),
        'FOTHER'                => array(979.7595192,    'fother'),
        'FOTMAL'                => array(32.65865064,    'fotmal'),
        'FUNT'                  => array(0.4095,         'funt'),
        'FUNTE'                 => array(0.4095,         'funte'),
        'GAMMA'                 => array(0.000000001,    'gamma'),
        'GIGAELECTRONVOLT'      => array(1.782662e-27,   'GeV'),
        'GIGAGRAM'              => array(1000000,        'Gg'),
        'GIGATONNE'             => array(1.0e+12,        'Gt'),
        'GIN'                   => array(0.6,            'gin'),
        'GIN_JAPANESE'          => array(0.594,          'gin'),
        'GRAIN'                 => array(0.00006479891,  'gr'),
        'GRAM'                  => array(0.001,          'g'),
        'GRAN'                  => array(0.00082,        'gran'),
        'GRANO'                 => array(0.00004905,     'grano'),
        'GRANI'                 => array(0.00004905,     'grani'),
        'GROS'                  => array(0.003824,       'gros'),
        'HECTOGRAM'             => array(0.1,            'hg'),
        'HUNDRETWEIGHT'         => array(50.80234544,    'cwt'),
        'HUNDRETWEIGHT_US'      => array(45.359237,      'cwt'),
        'HYL'                   => array(9.80665,        'hyl'),
        'JIN'                   => array(0.5,            'jin'),
        'JUPITER'               => array(1.899e+27,      'jupiter'),
        'KATI'                  => array(0.5,            'kati'),
        'KATI_JAPANESE'         => array(0.6,            'kati'),
        'KEEL'                  => array(21540.19446656, 'keel'),
        'KEG'                   => array(45.359237,      'keg'),
        'KILODALTON'            => array(1.6605402e-24,  'kD'),
        'KILOGRAM'              => array(1,              'kg'),
        'KILOGRAM_FORCE'        => array(1,              'kgf'),
        'KILOTON'               => array(1016046.9088,   'kt'),
        'KILOTON_US'            => array(907184.74,      'kt'),
        'KILOTONNE'             => array(1000000,        'kt'),
        'KIN'                   => array(0.6,            'kin'),
        'KIP'                   => array(453.59237,      'kip'),
        'KOYAN'                 => array(2419,           'koyan'),
        'KWAN'                  => array(3.75,           'kwan'),
        'LAST_GERMANY'          => array(2000,           'last'),
        'LAST'                  => array(1814.36948,     'last'),
        'LAST_WOOL'             => array(1981.29147216,  'last'),
        'LB'                    => array(0.45359237,     'lb'),
        'LBS'                   => array(0.45359237,     'lbs'),
        'LIANG'                 => array(0.05,           'liang'),
        'LIBRE_ITALIAN'         => array(0.339,          'lb'),
        'LIBRA_SPANISH'         => array(0.459,          'lb'),
        'LIBRA_PORTUGUESE'      => array(0.459,          'lb'),
        'LIBRA_ANCIENT'         => array(0.323,          'lb'),
        'LIBRA'                 => array(1,              'lb'),
        'LIVRE'                 => array(0.4895,         'livre'),
        'LONG_TON'              => array(1016.0469088,   't'),
        'LOT'                   => array(0.015,          'lot'),
        'MACE'                  => array(0.003778,       'mace'),
        'MAHND'                 => array(0.9253284348,   'mahnd'),
        'MARC'                  => array(0.24475,        'marc'),
        'MARCO'                 => array(0.23,           'marco'),
        'MARK'                  => array(0.2268,         'mark'),
        'MARK_GERMANY'          => array(0.2805,         'mark'),
        'MAUND'                 => array(37.3242,        'maund'),
        'MAUND_PAKISTAN'        => array(40,             'maund'),
        'MEGADALTON'            => array(1.6605402e-21,  'MD'),
        'MEGAGRAM'              => array(1000,           'Mg'),
        'MEGATONNE'             => array(1.0e+9,         'Mt'),
        'MERCANTILE_POUND'      => array(0.46655,        'lb merc'),
        'METRIC_TON'            => array(1000,           't'),
        'MIC'                   => array(1.0e-9,         'mic'),
        'MICROGRAM'             => array(1.0e-9,         '�g'),
        'MILLIDALTON'           => array(1.6605402e-30,  'mD'),
        'MILLIER'               => array(1000,           'millier'),
        'MILLIGRAM'             => array(0.000001,       'mg'),
        'MILLIMASS_UNIT'        => array(1.6605402e-30,  'mmu'),
        'MINA'                  => array(0.499,          'mina'),
        'MOMME'                 => array(0.00375,        'momme'),
        'MYRIAGRAM'             => array(10,             'myg'),
        'NANOGRAM'              => array(1.0e-12,        'ng'),
        'NEWTON'                => array(0.101971621,    'N'),
        'OBOL'                  => array(0.0001,         'obol'),
        'OBOLOS'                => array(0.0001,         'obolos'),
        'OBOLUS'                => array(0.0001,         'obolus'),
        'OBOLOS_ANCIENT'        => array(0.0005,         'obolos'),
        'OBOLUS_ANCIENT'        => array(0.00057,        'obolos'),
        'OKA'                   => array(1.28,           'oka'),
        'ONCA'                  => array(0.02869,        'onca'),
        'ONCE'                  => array(0.03059,        'once'),
        'ONCIA'                 => array(0.0273,         'oncia'),
        'ONZA'                  => array(0.02869,        'onza'),
        'ONS'                   => array(0.1,            'ons'),
        'OUNCE'                 => array(array('' => 0.45359237, '/' => 16),    'oz'),
        'OUNCE_FORCE'           => array(array('' => 0.45359237, '/' => 16),    'ozf'),
        'OUNCE_TROY'            => array(array('' => 65.31730128, '/' => 2100), 'oz'),
        'PACKEN'                => array(490.79,         'packen'),
        'PENNYWEIGHT'           => array(array('' => 65.31730128, '/' => 42000), 'dwt'),
        'PETAGRAM'              => array(1.0e+12,        'Pg'),
        'PFUND'                 => array(0.5,            'pfd'),
        'PICOGRAM'              => array(1.0e-15,        'pg'),
        'POINT'                 => array(0.000002,       'pt'),
        'POND'                  => array(0.5,            'pond'),
        'POUND'                 => array(0.45359237,     'lb'),
        'POUND_FORCE'           => array(0.4535237,      'lbf'),
        'POUND_METRIC'          => array(0.5,            'lb'),
        'POUND_TROY'            => array(array('' => 65.31730128, '/' => 175), 'lb'),
        'PUD'                   => array(16.3,           'pud'),
        'POOD'                  => array(16.3,           'pood'),
        'PUND'                  => array(0.5,            'pund'),
        'QIAN'                  => array(0.005,          'qian'),
        'QINTAR'                => array(50,             'qintar'),
        'QUARTER'               => array(12.70058636,    'qtr'),
        'QUARTER_US'            => array(11.33980925,    'qtr'),
        'QUARTER_TON'           => array(226.796185,     'qtr'),
        'QUARTERN'              => array(1.587573295,    'quartern'),
        'QUARTERN_LOAF'         => array(1.81436948,     'quartern-loaf'),
        'QUINTAL_FRENCH'        => array(48.95,          'q'),
        'QUINTAL'               => array(100,            'q'),
        'QUINTAL_PORTUGUESE'    => array(58.752,         'q'),
        'QUINTAL_SPAIN'         => array(45.9,           'q'),
        'REBAH'                 => array(0.2855,         'rebah'),
        'ROTL'                  => array(0.5,            'rotl'),
        'ROTEL'                 => array(0.5,            'rotel'),
        'ROTTLE'                => array(0.5,            'rottle'),
        'RATEL'                 => array(0.5,            'ratel'),
        'SACK'                  => array(165.10762268,   'sack'),
        'SCRUPLE'               => array(array('' => 65.31730128, '/' => 50400), 's'),
        'SEER'                  => array(0.933105,       'seer'),
        'SEER_PAKISTAN'         => array(1,              'seer'),
        'SHEKEL'                => array(0.01142,        'shekel'),
        'SHORT_TON'             => array(907.18474,      'st'),
        'SLINCH'                => array(175.126908,     'slinch'),
        'SLUG'                  => array(14.593903,      'slug'),
        'STONE'                 => array(6.35029318,     'st'),
        'TAEL'                  => array(0.03751,        'tael'),
        'TAHIL_JAPANESE'        => array(0.03751,        'tahil'),
        'TAHIL'                 => array(0.05,           'tahil'),
        'TALENT'                => array(30,             'talent'),
        'TAN'                   => array(50,             'tan'),
        'TECHNISCHE_MASS_EINHEIT' => array(9.80665,      'TME'),
        'TERAGRAM'              => array(1.0e+9,         'Tg'),
        'TETRADRACHM'           => array(0.014,          'tetradrachm'),
        'TICAL'                 => array(0.0164,         'tical'),
        'TOD'                   => array(12.70058636,    'tod'),
        'TOLA'                  => array(0.0116638125,   'tola'),
        'TOLA_PAKISTAN'         => array(0.0125,         'tola'),
        'TON_UK'                => array(1016.0469088,   't'),
        'TON'                   => array(1000,           't'),
        'TON_US'                => array(907.18474,      't'),
        'TONELADA_PORTUGUESE'   => array(793.15,         'tonelada'),
        'TONELADA'              => array(919.9,          'tonelada'),
        'TONNE'                 => array(1000,           't'),
        'TONNEAU'               => array(979,            'tonneau'),
        'TOVAR'                 => array(128.8,          'tovar'),
        'TROY_OUNCE'            => array(array('' => 65.31730128, '/' => 2100), 'troy oz'),
        'TROY_POUND'            => array(array('' => 65.31730128, '/' => 175),  'troy lb'),
        'TRUSS'                 => array(25.40117272,    'truss'),
        'UNCIA'                 => array(0.0272875,      'uncia'),
        'UNZE'                  => array(0.03125,        'unze'),
        'VAGON'                 => array(10000,          'vagon'),
        'YOCTOGRAM'             => array(1.0e-27,        'yg'),
        'YOTTAGRAM'             => array(1.0e+21,        'Yg'),
        'ZENTNER'               => array(50,             'Ztr'),
        'ZEPTOGRAM'             => array(1.0e-24,        'zg'),
        'ZETTAGRAM'             => array(1.0e+18,        'Zg'),
        'STANDARD'              => 'KILOGRAM'
    );
}