def p_contain_resist_uty(p_li, p_e,  p_b, γ_m, γ_SCPC):
    """Pressure containment resistance unity check.

    Reference:
    DNVGL-ST-F101 (2017-12) 
        sec:5.4.2.1 eq:5.6 p:93 

    (press_contain_resis_unity)
    """
    p_cont_res_uty =  (p_li - p_e) * γ_m * γ_SCPC / p_b
    return p_cont_res_uty