HJ 596.1-2010 "Water Quality Vocabulary, Part 1" is formulated to protect the environment and protect human health by implementing the "Environment Protection Law of the People's Republic of China" and "Water Pollution Prevention and Control Law of the People's Republic of China". This standard is revised from "Water Quality Vocabulary Parts 1 and 2" (GB6816-86) and "Water Quality Vocabulary Parts 3 to 7" (GB 11915-89), which aims to standardize terms and definitions in the field of water quality. The standard is divided into seven parts, covering professional terms related to water quality characteristics and their English comparisons. The revised terms may be similar to domestic and foreign Miscellaneous publications, but have specific definitions in different application scenarios. This standard adopts the international standard "Water Quality Vocabulary Part 1" (ISO 6107.1-2004) to ensure the international versatility of terminology. Effective March 1, 2011, "Water Quality Vocabulary Parts I and II" (GB 6816-86) and "Water Quality Vocabulary Parts III to VII" (GB 11915-89) will no longer apply, and this standard shall prevail.