求翻译：5.2.11 发放化学品时应按先进先出原则，仓管员应做好个人防护措施，如佩戴口罩、防护手套、防腐蚀工衣和防护鞋等，并尽量将化学品保持在原包装内。是什么意思？

5.2.11 issuing chemicals according to the FIFO principle, the Warehouse workers should be prepared to personal protective measures, such as wearing masks, gloves, and anti-corrosion work clothes and protective footwear, and try to keep the chemicals in the original packaging.

Release 5.2 .11 when chemicals should be the first in, first out principle, the tube should be done by personal protective measures, such as wearing masks, gloves, clothing and anti-corrosion protection and protective footwear, such as chemicals and try to remain in their original packaging.

When 5.2.11 provide chemicals should according to advanced leave the principle first, the warehouse tube should complete the personnel protective measure, like wears the mouthpiece, the protective glove, the corrosion preventing labor clothes and the protection shoes and so on, and maintains as far

5.2.11 release chemicals should be according to the FIFO principle, warehouse keeper should be proper personal protective measures, such as wearing masks, protective gloves, anti-corrosion such as work clothes and protective footwear, chemicals and as far as possible be kept in original packaging.

正在翻译，请等待...