What conditions must be met for sampling regulations for concrete admixtures?

What are the regulations for sampling concrete admixtures? Or what conditions must be met? As a professional chemical construction personnel, we must understand. Next, the editor of Anhui Yulong New Materials Co., Ltd. will take you to learn about it (1) Concrete admixtures are divided into nine categories according to GB8076-1997: ordinary water-reducing agent, high-efficiency…