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persistent organic pollutants (pops) is chemical substances harmful to humans that exist in or accumulate within the bodies of animals and plants, and circulate in the natural environment over extended periods. persistent organic pollutants (pops) are a class of naturally occurring or synthetic organic pollutants characterized by persistence, bioaccumulation, semi-volatility, and high toxicity. pops include pesticides, industrial chemicals, and by-products unintentionally generated during industrial processes . these pollutants can travel long distances through various environmental media (air, water, organisms), crossing borders and affecting human health and ecosystems even in areas where pops were never used or produced, causing significant global harm.

svhc ,“substance of very high concern”, refers to any substance that has adverse effects on human health and the environment.

pahs testing

california proposition 65 (also known as safe drinking water and toxic enforcement act) was enacted as a ballot initiative in november 1986. prop 65 businesses are required to provide a "clear and reasonable" warning before knowingly and intentionally exposing anyone to a listed chemical “known to the state” to cause cancer or reproductive harm.

rohs testing

phthalates is a general term for compounds which result from the reaction of phthalic anhydride and alcohol. such substances are mainly employed as plasticisers make plastics and rubber more piable. they are widely used in electronic and electrical equipment (eee), toys, coatings, inks, garments, packaging materials, detergents, lubricants and personal care articles, etc. but when the concentration of phthalates exceeds a certain level, it may disrupt endocrine of human bodies, bringing harm to the development and health of children.

gel permeation chromatography (gpc), abbreviated as gpc, utilizes the differential elution time of molecules of various sizes through a gel column to separate molecules of different molecular weights in high polymers. the intensity and elution time of each eluted component are measured using a refractive index detector. by comparing the elution time of unknown samples with the standard curve of known standard materials in terms of elution time and molecular weight, the molecular weight and molecular weight distribution of each eluted component of the unknown sample can be determined.

it is known that "made-in-china" goes to international along with the development of china's economy. however, the growing purchasing capability and huge market potential of china capture the attention of great numbers of foreign exporters. as one of the largest markets, china has strengthened its quality surveillance on its market during recent years when competent authorities usually select some products on the china market for testing to check conformity. it deserves notice that accompanying measures (penalties, recalls, etc.) will be taken in case of any non-compliance. manufacturers, importers and distributors to access china market had better send their products for testing prior to shipment.

per- and polyfluoroalkyl substances (pfas) are a group of synthetic chemical substances that are widely used in consumer products, including food packaging, textiles, and apparel due to their water, stain, and oil-repellent properties. however, the persistent, bioaccumulative, and toxic nature of pfas chemical substances has raised concerns over their impact on human health and the environment. as a result, governments around the world are taking measures to restrict and regulate the use of pfas chemicals. brands and retailers that use pfas in their products must understand the market requirements and take appropriate actions to mitigate regulatory and financial risks associated with these chemicals. this includes establishing proactive and reactive controls for testing to estimate exposure and risk of pfas chemicals.

the full name of tsca is the toxic substance control act, which was officially implemented on october 11, 1976. the act aims to comprehensively consider the environmental, economic and social impacts of chemical substances circulating in the united states. and prevent "unreasonable risks" to human health and the environment. after several revisions, it has now become the effective regulation of chemical substances in the united states. the hazardous substances final rule is based on tsca section 6 requirements that require epa to take expedited regulatory action to regulate persistent, bioaccumulative and toxic (pbt) chemicals.