GB/T 13248-2008 (English Version) PDF

Standard No.: GB/T 13248-2008
Language: Chinese, Available in English version
Release Date: 2008
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Latest: GB/T 13248-2008
Replace: GB/T 13248-1991

Scope: Warning: Personnel using this standard should have practical experience in formal laboratory work. This standard does not point out all possible safety problems. Users are responsible for taking appropriate safety and health measures and ensuring compliance with relevant national laws and regulations. This standard specifies two kinds of sodium periodate photometric method for the determination of manganese content in vulcanized rubber, raw rubber, rubber compound and latex. The two methods also include the analysis and determination of chlorine-containing rubber. Chapter 3 of this standard stipulates that it is not affected by the large amount of fillers contained, which can be synthetic or natural silicates or calcium carbonate in different forms, or synthetic ingredients used under the test conditions and generate difficult Soluble phosphate complexing agent. Chapter 4 of this standard stipulates that raw rubber, synthetic natural rubber, isoprene rubber and latex contain a small amount of filler (not more than 10%): inert silicate filler or any kind of compounding agent, such as: titanium dioxide in the experiment Conditions will form an insoluble phosphate complexing agent.

GB/T 13248-2008 Referenced Document

GB/T 15340 Rubber,raw natural and raw synthetic.Sampling and further preparative procedures
ISO 123:2001 Rubber latex - Sampling
ISO 124:1997 Latex, rubber - Determination of total solids content
ISO 4793:1980 Laboratory sintered (fritted) filters; Porosity grading, classification and designation

2008 GB/T 13248-2008 Rubber and rubber latices.Determination of manganese content.Sodium periodate photometric methodes
1991 GB/T 13248-1991 Vulcanized rubber--Determination of manganese content--Sodium periodate photometric methods