In Screen Cartoonists Guild, Local 852 v. Walt Disney Productions (1946) 74 Cal.App.2d 414, a clause in the arbitration agreement stated any ruling of the arbitrator should not conflict with the express provisions of the bargaining contract. (Screen Cartoonists, supra, 74 Cal.App.2d at p. 415.) The arbitrator construed the workweek to include Saturday, but the arbitrator's ruling was in direct conflict with a provision in the bargaining agreement, which specified a five-day workweek. (Screen Cartoonists, supra, 74 Cal.App.2d at p. 418.)