P_BOUNDEDVALUE: how to set the range to a custom PSET property?

@Moult I made a script to set these values.

import bonsai.tool as tool 

import ifcopenshell

import ifcopenshell.guid

import logging

import sys

logger = logging.getLogger("Pset_mod") 

logger.setLevel(logging.DEBUG) 

stream_handler = logging.StreamHandler(sys.stdout)

stream_handler.setFormatter(logging.Formatter("%(asctime)s - %(levelname)s - %(message)s"))

logger.addHandler(stream_handler) 

ifc_file = tool.Ifc.get() 

if not ifc_file:

    raise Exception("IFC file not loaded.")

elements = ifc_file.by_type("IfcWall")

for element in elements:

    existing_pset = None

    for rel in element.IsDefinedBy:

        if rel.is_a("IfcRelDefinesByProperties") and rel.RelatingPropertyDefinition.is_a("IfcPropertySet"):

            if rel.RelatingPropertyDefinition.Name == "DIA_design":

                existing_pset = rel.RelatingPropertyDefinition

                break

    owner_history = None

    if ifc_file.by_type('IfcOwnerHistory'):

        owner_history = ifc_file.by_type('IfcOwnerHistory')[0]

    if not existing_pset:

        existing_pset = ifc_file.createIfcPropertySet(

            ifcopenshell.guid.new(),

            owner_history,

            'DIA_design',

            None,

            []

        )

        ifc_file.createIfcRelDefinesByProperties(

            ifcopenshell.guid.new(),

            owner_history,

            None,

            None,

            [element],

            existing_pset

        )

    ac_ratio = ifc_file.createIfcPropertyBoundedValue(

        'A/C',

        None,

        ifc_file.createIfcRatioMeasure(1),  # Upper bound

        ifc_file.createIfcRatioMeasure(0.9),  # Lower bound

        ifc_file.createIfcRatioMeasure(0.95),  # Nominal value

        None

    )

    peso_specifico = ifc_file.createIfcPropertyBoundedValue(

        'Peso_specifico',

        None,

        ifc_file.createIfcMassDensityMeasure(1650),  # Upper bound

        ifc_file.createIfcMassDensityMeasure(1450),  # Lower bound

        ifc_file.createIfcMassDensityMeasure(1550),  # Nominal value

        None

    )

    viscosita = ifc_file.createIfcPropertyBoundedValue(

        'Viscosità',

        None,

        ifc_file.createIfcTimeMeasure(50),  # Upper bound

        ifc_file.createIfcTimeMeasure(47),  # Lower bound

        ifc_file.createIfcTimeMeasure(48),  # Nominal value

        None

    )

    new_properties = []

    for prop in existing_pset.HasProperties:

        if prop.Name not in ['A/C', 'Peso_specifico', 'Viscosità']:

            new_properties.append(prop)

    new_properties.extend([ac_ratio, peso_specifico, viscosita])

    existing_pset.HasProperties = tuple(new_properties)

logger.info("Done.")
This is what it looks like on blender
And in BimVision I get exatcly what I was looking for:
( I don't know why it shows kg/m² instad of kg/m³ but it must be a bug of BimVision)