Standard No.:	GB/T 7532-2008
English Name:	Determination of heavy metals in organic chemical products - Visual colorimetry
Chinese Name:	有机化工产品中重金属的测定 目视比色法
Chinese Classification:	G15    Organic chemicals in general
Professional Classification:	GB    National Standard
Source Content Issued by:	AQSIQ; SAC
Issued on:	2008-4-10
Implemented on:	2008-10-1
Status:	valid
Superseding:	GB/T 7532-1987 Organic products for industrial use; Determination of content of heavy metals content; General method; Visual limit test
Target Language:	English
File Format:	PDF
Word Count:	1500 words
Translation Price(USD):	85.0
Delivery:	via email in 1 business day

GB/T 7532-2008 Determination of heavy metals in organic chemical products — Visual colorimetry English, Anglais, Englisch, Inglés, えいご 1 Scope This standard specifies the test method for determination of heavy metals in organic chemical products by visual colorimetry. This standard is applicable to the samples with heavy metal content (calculated as Pb) ranging from 0.1μg/mL to 4.0 μg/mL. 2 Normative references The following normative documents contain provisions which, through reference in this text, constitute provisions of this standard. For dated references, subsequent amendments (excluding corrections), or revisions, of any of these publications do not apply to this standard. However, parties to agreements based on this standardare encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest editions of the normative document referred to applies. GB/T 602-2002 Chemical reagent - Preparations of standard solutions for impurity GB/T 603-2002 Chemical reagent - Preparations of reagent solutions for use in test methods GB/T 6682-1992 Water for analytical laboratory use - Specification and test methods (neq ISO 3696:1987) 3 Principle

Contents Foreword II 1 Scope 2 Normative references 3 Principle 4 Warning 5 Reagents 6 Apparatus 7 Analytical procedures 8 Expression of results