def Ceiling(CASRN, AvailableMethods=False, Method=None):  # pragma: no cover
    '''This function handles the retrieval of Ceiling limits on worker
    exposure to dangerous chemicals.

    This API is considered experimental, and is expected to be removed in a
    future release in favor of a more complete object-oriented interface.

    >>> Ceiling('75-07-0')
    (25.0, 'ppm')
    >>> Ceiling('1395-21-7')
    (6e-05, 'mg/m^3')
    >>> Ceiling('7572-29-4', AvailableMethods=True)
    ['Ontario Limits', 'None']
    '''
    def list_methods():
        methods = []
        if CASRN in _OntarioExposureLimits and (_OntarioExposureLimits[CASRN]["Ceiling (ppm)"] or _OntarioExposureLimits[CASRN]["Ceiling (mg/m^3)"]):
            methods.append(ONTARIO)
        methods.append(NONE)
        return methods
    if AvailableMethods:
        return list_methods()
    if not Method:
        Method = list_methods()[0]

    if Method == ONTARIO:
        if _OntarioExposureLimits[CASRN]["Ceiling (ppm)"]:
            _Ceiling = (_OntarioExposureLimits[CASRN]["Ceiling (ppm)"], 'ppm')
        elif _OntarioExposureLimits[CASRN]["Ceiling (mg/m^3)"]:
            _Ceiling = (_OntarioExposureLimits[CASRN]["Ceiling (mg/m^3)"], 'mg/m^3')
    elif Method == NONE:
        _Ceiling = None
    else:
        raise Exception('Failure in in function')
    return _Ceiling
def Ceiling(CASRN, AvailableMethods=False, Method=None):  # pragma: no cover
    '''This function handles the retrieval of Ceiling limits on worker
    exposure to dangerous chemicals.

    This API is considered experimental, and is expected to be removed in a
    future release in favor of a more complete object-oriented interface.

    >>> Ceiling('75-07-0')
    (25.0, 'ppm')
    >>> Ceiling('1395-21-7')
    (6e-05, 'mg/m^3')
    >>> Ceiling('7572-29-4', AvailableMethods=True)
    ['Ontario Limits', 'None']
    '''
    def list_methods():
        methods = []
        if CASRN in _OntarioExposureLimits and (_OntarioExposureLimits[CASRN]["Ceiling (ppm)"] or _OntarioExposureLimits[CASRN]["Ceiling (mg/m^3)"]):
            methods.append(ONTARIO)
        methods.append(NONE)
        return methods
    if AvailableMethods:
        return list_methods()
    if not Method:
        Method = list_methods()[0]

    if Method == ONTARIO:
        if _OntarioExposureLimits[CASRN]["Ceiling (ppm)"]:
            _Ceiling = (_OntarioExposureLimits[CASRN]["Ceiling (ppm)"], 'ppm')
        elif _OntarioExposureLimits[CASRN]["Ceiling (mg/m^3)"]:
            _Ceiling = (_OntarioExposureLimits[CASRN]["Ceiling (mg/m^3)"], 'mg/m^3')
    elif Method == NONE:
        _Ceiling = None
    else:
        raise Exception('Failure in in function')
    return _Ceiling
def Ceiling ( CASRN , AvailableMethods = False , Method = None ) : # pragma: no cover def list_methods ( ) : methods = [ ] if CASRN in _OntarioExposureLimits and ( _OntarioExposureLimits [ CASRN ] [ "Ceiling (ppm)" ] or _OntarioExposureLimits [ CASRN ] [ "Ceiling (mg/m^3)" ] ) : methods . append ( ONTARIO ) methods . append ( NONE ) return methods if AvailableMethods : return list_methods ( ) if not Method : Method = list_methods ( ) [ 0 ] if Method == ONTARIO : if _OntarioExposureLimits [ CASRN ] [ "Ceiling (ppm)" ] : _Ceiling = ( _OntarioExposureLimits [ CASRN ] [ "Ceiling (ppm)" ] , 'ppm' ) elif _OntarioExposureLimits [ CASRN ] [ "Ceiling (mg/m^3)" ] : _Ceiling = ( _OntarioExposureLimits [ CASRN ] [ "Ceiling (mg/m^3)" ] , 'mg/m^3' ) elif Method == NONE : _Ceiling = None else : raise Exception ( 'Failure in in function' ) return _Ceiling
This function handles the retrieval of Ceiling limits on worker
    exposure to dangerous chemicals.

    This API is considered experimental, and is expected to be removed in a
    future release in favor of a more complete object-oriented interface.

    >>> Ceiling('75-07-0')
    (25.0, 'ppm')
    >>> Ceiling('1395-21-7')
    (6e-05, 'mg/m^3')
    >>> Ceiling('7572-29-4', AvailableMethods=True)
    ['Ontario Limits', 'None']
This function handles the retrieval of Ceiling limits on worker exposure to dangerous chemicals .