【求助】请翻译一段话

个人理解如下

Are substances associated with the equipment operation of food grade quality?

与仪器操作有关的物质是食品级的么？

Are substances associated with the equipment operation of food grade quality?
associated with the equipment operation是修饰substances的，句子的主干是Are substances of food grade quality?
与设备操作有关的物质是否为食品级的？

（Are）any deviations from this documented and evaluated to ensure that there is no detrimental effects upon the fitment for purpose of material？
是否会记录并评估所有偏差，以确保其对设备无有害影响？
不知道你们是不是原料药供应商？这句话里的material通常是指生产原料药的物料，不过这里要看背景和上下文才能确定。

happyjyl的“是否”用的不错，学习了

我们是原料药供应商。你的翻译很通顺很专业，不愧为高手，谢谢哦