Comparison of correction factor for both dynamic total thermal insulation and evaporative resistance between ISO 7933 and ISO 9920

Table 3 Input parameters of PHS, PHS_mA to calculate difference in predicted core temperature and accumulated water loss

Individual condition	V_ar	V_w	I_cl
Condition A	3.0 m·s⁻¹	0.1 m·s⁻¹	0.3 clo
Condition B	3.0 m·s⁻¹	0.1 m·s⁻¹	1.0 clo
Condition C	0.15 m·s⁻¹	0.1 m·s⁻¹	0.3 clo
Condition D	0.15 m·s⁻¹	0.1 m·s⁻¹	1.0 clo
Common condition	Input parameter
T_a	Every 0.1 °C (30–40 °C)
RH	Every 1% (0–100%)
M	145 W·m⁻²
Height	1.70 m
Weight	65 kg
Acclimation	Acclimated
Drink availability	Available
i_mst	0.38
Calculation program	PHS, PHS_mA
Calculation time	1 h

V_ar relative air velocity, V_w walking speed, I_cl intrinsic thermal insulation of clothing, T_a air temperature, RH relative humidity, M metabolic rate, i_mst static moisture permeability index, PHS predicted heat strain, PHS_mA modified PHS including equation (2.1–3) of correction factor for dynamic total thermal insulation and Eq. (4) of correction factor for dynamic total evaporative resistance. Equations are shown in Table 1

ISSN: 1880-6805