Chemical detection-TCT

Chemical detection

TCT General Testing and Testing Chemistry Laboratory has advanced instruments and equipment such as GC/MS, ICP, AAS, UV-VIS, IC, FT-I and modern supporting facilities, as well as experienced professional and technical personnel and a strict laboratory quality assurance system. As a professional organization with a third-party impartial status, TCT sincerely provides our customers with services such as hazardous substances, footwear, leather, toys, food containers, environmental protection, textiles, and material analysis.

Certification itemsTest item (standard)Related introduction
ROHSLead, mercury, cadmium, hexavalent chromium,
Polybrominated biphenyls, polybrominated diphenyl ethers
RoHS is a mandatory standard established by EU legislation, mainly used to regulate the material and process standards of electrical and electronic products. Control the content of harmful substances in electrical and electronic products to make them more conducive to human health and environmental protection.
REACHMetal and non-metal detectionREACH refers to the EU regulations “Registration, Evaluation, Authorization and Restriction of Chemicals”. 
This is a legal proposal concerning the safety of chemical production, trade, and use. 
Unlike the RoHS directive, REACH covers a much wider range. In fact, it will affect products and manufacturing processes in almost all industries, from mining to textiles and garments, light industry, and electromechanical industries.
PAHSPolycyclic aromatic hydrocarbons
Polycyclic aromatic hydrocarbons (PAHs) refer to a class of organic compounds with two or more benzene rings. 
Polycyclic aromatic hydrocarbons are hydrocarbons containing more than two benzene rings in the molecule, including more than 
150 compounds such as naphthalene, anthracene, phenanthrene, and pyrene 
CPSIALead, phthalateCPSIA affects all related industries in the United States that produce, import, and distribute toys, clothing, and other children’s products and care products. 
All manufacturers should ensure that their products comply with all regulations, bans, standards or rules of the Act
PhthalatesPhthalates 6P
Phthalates (phthalates) are a group of chemical compounds, mainly used in polyvinyl chloride materials. 
Conventional phthalate ( ester ) testing mainly includes six items (DEHP
 , DINP , DIDP, DBP, BBP & DnOP) , referred to as 6P .
California 65Lead, cadmiumCalifornia Document No. 
65 is about glassware and ceramics requirements, requiring warnings to be marked on any products in California that emit carcinogenic or regeneratively toxic chemicals. 
The listed chemicals include lead and cadmium.
AZO CompoundsAzo compounds
Azo compound is AZO , azo group ─ N=N ─ and a compound formed by connecting two hydrocarbon groups, the general formula is R ─ N=N ─ R ′. 
Many azo compounds have carcinogenic effects and are banned. AZO FREE has become one of the most important quality monitoring items in the international textile and apparel trade.
FormaldehydeformaldehydeFormaldehyde is a colorless gas with a strong pungent odor. 
Easily soluble in water, alcohol and ether. 
Its 35%-40% aqueous solution is commonly called formalin. 
It is not possible to use textile auxiliaries that make the formaldehyde content of textiles directly in contact with the skin exceed 
30 ppm and that of all other textiles exceed 300 ppm .
Halogen detectionFluorine ( F ), chlorine ( CL )
Bromine ( Br ), iodine ( I ), astatine ( At )
Halogen compounds are often used as a flame retardant. 
Used in electronic components and materials, product shells, plastics, etc. 
But in the process of burning and heating, harmful substances will be released, threatening the health of human body, the environment and the next generation. 
Therefore, various countries are adopting corresponding methods to make efforts to limit the halogen content, which is halogen-free.
EU Packaging Directive94/62/ECLead + cadmium + mercury + hexavalent chromium <0.01%
U.S. Packaging DirectiveTPCH(CONEG)Lead + cadmium + mercury + hexavalent chromium <0.01%
EU Battery Directive2006/66/ECMercury <5ppm, cadmium <20ppm, lead <40ppm