GB10736-2008

Working chemical - Potassium chloride

工作基准试剂氯化钾

GB 10736-2008 ist eine gültige verbindliche chinesische Nationalnorm: Working chemical - Potassium chloride. Branchencluster: Elektronik. Schwerpunkt: Produktsicherheit. Inkrafttreten: 1. Juni 2009.

Die Anwendbarkeit hängt vom Produktumfang, dem Zertifizierungsweg, Bekanntmachungen der Behörden und Übergangsregeln ab. Fordern Sie eine Übersetzung an oder prüfen Sie die Quelle, bevor Sie diesen Eintrag für Compliance-Entscheidungen nutzen.

Compliance-Überblick

Dieser Überblick ist derzeit nur auf Englisch verfügbar.

Geltungsbereich und Anwendbarkeit

This standard specifies the requirements for working chemical Potassium chloride used as a titration analysis reagent. It is applicable to the inspection and verification of potassium chloride with a highly specific purity grade. Engineers and manufacturers in the chemical reagent industry must ensure their products meet these specifications for analytical applications. It replaces the previous version GB 10736-1989.

Technische Anforderungen

GB 10736-2008 establishes the mandatory specifications for working chemical Potassium chloride, focusing on its physical properties and chemical purity. The standard dictates strict limits on the mass fraction of KCl, ensuring it falls within an extremely narrow tolerance band suitable for analytical precision. Compliance with these purity requirements is mandatory for all manufacturers producing this grade of reagent. In addition to the primary content, the standard regulates various chemical impurities to maintain the reagent's stability and accuracy in titration. This includes maximum allowable limits for water insoluble matter, sulfates, total nitrogen, phosphates, and heavy metals (as Pb). The standard also sets parameters for trace elements such as sodium, magnesium, calcium, iron, and barium, referencing general methods outlined in GB/T 602 and other related chemical standards. Physical characteristics such as pH value and clarity are also strictly defined to ensure the reagent performs consistently in laboratory environments. The packaging, storage, and transportation requirements are governed by GB 15346, ensuring the chemical's integrity is preserved. Manufacturers must adhere to these packaging classifications to guarantee safe delivery and compliance.

Prüfverfahren

The standard outlines specific testing procedures to verify compliance. The potassium chloride content is determined using a gravimetric potentiometric titration method with a silver nitrate standard solution, as specified in GB 10737. Impurities such as sodium and magnesium are measured via flame atomic absorption spectrometry following GB/T 9723-2007. Other analytical methods include visual colorimetry for iodides, bromides, and calcium, and turbidimetry for sulfates and barium. Accurate execution of these testing protocols is essential for validating product quality.

Häufige Fragen

What products are regulated under GB 10736-2008?

It regulates working chemical Potassium chloride specifically used as a titration analysis reagent in laboratories and chemical manufacturing.

Are there any mandatory clauses in GB 10736-2008?

Yes, Chapter 4 and clauses 5.3.1, 5.3.2 regarding specifications and content determination are mandatory, while other clauses are recommended.

What are the key updates from the previous version?

The standard replaced GB 10736-1989, updating the determination method for content and switching several impurity tests (like pH, sulfates, and heavy metals) to general chemical reagent methods.

The summary above provides a high-level overview of GB 10736-2008. To ensure complete compliance for your products entering the Chinese market, a precise and professional translation of the full technical specifications is essential. Purchase our high-quality English translation of GB 10736-2008 today to access all detailed parameters, tables, and testing procedures.

Hinweise zur Anwendbarkeit

Normtyp: Produkt
CCS: G61
ICS: 71.040.30
Zuständige Behörde: Ministry of Industry and Information Technology
Technisches Komitee: Ministry of Industry and Information Technology

Normbeziehungen

Ersetzt:GB 10736-1989