AS 2300.10.4 Supp 1-1991 乳制品行业化学和物理测试的方法．黄油．干酪素、酪蛋白酸盐和共沉淀物．可过滤物质的测定．摄影参考标准（AS 2300．10．4－1991的补充）
Methods of chemical and physical testing for the dairying industry - Caseins, caseinates and coprecipitates - Determination of filterable material - Photographic reference standards (Supplement to AS 2300.10.4-1991)