This citation refers to a 1947 Queensland Industrial Gazette decision regarding variations to the Aerated Water Factories Award for the Central Division. The decision is numbered 528 of 1947 and dated 5 November 1947. However, the actual judgment text has not been provided in the prompt, making it impossible to analyse the court's reasoning, the specific variations made to the award, the parties involved, or the legal principles applied. To provide a complete structured analysis, access to the full text of the decision (referenced as 1576.pdf) would be required.