T/LFX 005-2023 Active Group standards

T/LFX 005-2023: Rapid Detection Method for Chloride Ion Content in Inorganic Fertilizers

T/LFX 005-2023

Publish Date: 2023-06-30 Implement Date: 2023-07-30 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: T/LFX 005-2023

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: Chemical industry

ICS Name: Fertilizer

Publish Date: 2023-06-30

Implement Date: 2023-07-30

Pages: 6 pages

Scope

Scope: This document describes the principles, reagents, equipment, sampling, testing methods, and result determination of a rapid detection method for chloride ion content levels in inorganic fertilizers. This document is applicable to the on-site rapid detection and identification of chloride ion content levels in inorganic fertilizers. Main technical content: A rapid detection method for chloride ion content levels in inorganic fertilizers. 1 Scope This document describes the principles, reagents, equipment, sampling, testing methods, and result determination of a rapid detection method for chloride ion content levels in inorganic fertilizers. This document is applicable to the on-site rapid detection and identification of chloride ion content levels in inorganic fertilizers. 2 Normative references The content of the following documents is an indispensable part of this document through normative references. Among them, the referenced documents with a specified date apply only to the version corresponding to that date. The latest version (including all amendment sheets) of the unspecified date referenced documents applies to this document. GB/T 6682 Specifications and Test Methods for Water Used in Analytical Laboratories 3 Terms and definitions This document does not define any terms or definitions. 4 Principle The sample solution uses potassium chromate as an indicator, and a quantitatively added standard solution of silver nitrate is added. The excess silver nitrate reacts with CrO42- to form a brick-red precipitate, and the chloride ion content level is determined by the color of the solution. 5 Reagents 5.1 Reagents and experimental water The reagents used in this document, unless otherwise specified, refer to analytical-grade reagents; the water used to prepare standard solutions shall comply with the specifications of Class III water in GB/T 6682; and the experimental water shall be drinking pure water. 5.2 Indicator The preparation method of the indic