Core Viewpoint - The National Market Supervision Administration (National Standardization Administration) has approved 367 recommended national standards and 2 modifications to existing standards, which are now announced [1][2]. Group 1: Approved Standards - The approved standards include methods for determining arsenic content in steel and alloys using spectrophotometry and iodometry [1][2]. - The implementation date for the new standards is set for September 1, 2026 [4][5]. Group 2: Specific Standards Listed - GB/T 223.31-2026: Method for determining arsenic content in steel and alloys [4]. - GB/T 249-2026: Naming method for semiconductor discrete devices [4]. - GB/T 602-2026: Preparation of standard solutions for impurity determination in chemical reagents [4]. - GB/T 3810.3-2026: Testing methods for ceramic tiles, including water absorption and apparent relative density [5]. - GB/T 17980.1-2026 to GB/T 17980.50-2026: Guidelines for field efficacy testing of pesticides, covering various pests and diseases [8][9][10].
国家市场监督管理总局批准发布367项推荐性国家标准
仪器信息网·2026-03-06 09:07