9 Jul 2008 i) prohibit the manufacture of PBDEs (tetraBDE, pentaBDE,. hexaBDE, heptaBDE , octaBDE, nonaBDE and decaBDE congeners. (see footnote

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History and Etymology for pentad. Greek pentad-, pentas, from pente tetraBDE pentaBDE hexaBDE heptaBDE octaBDE nonaBDE decaBDE c-pentaBDE 24–38 50–60 4-8 c-octaBDE 10–12 44 31–55 10–11 <1 c-decaBDE <3 97–98 Table 1. Typical PBDE homologue distribution in PBDE products. Adopted from (La Guardia et al., 2006). Examples of PBDE congenes – BDE-47, BDE-99 and BDE-183. technique. PentaBDE, OctaBDE and DecaBDE technical formulations are characterized under the method and results for a typical high-impact polystyrene sample are also presented.

Pentabde

articles to which c-pentaBDE or c-octaBDE has been added. Most of c-pentaBDE’s consumption took place in the United States. It was used primarily as an additive flame retardant in flexible polyurethane foams. A 2002 study estimated that 80 percent of c-pentaBDE was used in foam for furniture and mattresses, while the remaining Pentad definition is - a group of five. History and Etymology for pentad. Greek pentad-, pentas, from pente PentaBDE transfers from mothers to embryos and lactating infants.

Pentabromodiphenyl ether (PentaBDE) was administered intragastrically to female rats, in a single dose (25, 200 or 2000 mg/kg b.w.). PentaBDE administered to rats disturbed redox homeostasis, which was manifested by lower total antioxidant status (TAS) in serum and by higher liver glutathione reduced ( GSH ) concentration.

Additional recommended knowledge. PentaBDE mixture can be gradually released from older items made with polyurethane foam and plastics, into indoor environments such as houses, schools, day care centers, and offices. Once it is released from products, it can be present on floors, furniture and other surfaces, and in air and dust.

A 28-day subacute oral toxicity study was performed in Wistar rats with a purified preparation of the commercial pentabromodiphenyl ether (pentaBDE), DE-71. The applied OECD407 protocol was enhanced for endocrine and immune parameters, and to enable benchmark dose analysis.

Based on an interim risk assessment of certain polybrominated diphenyl ether congeners an 2016년 9월 9일 5.5.1 PentaBDE, OctaBDE 안전확인 부속서 06 완구.
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Contact Us × pentaBDE pentabromodiphenyl ether PKC protein kinase C PND postnatal day PR progesterone receptor PROD pentoxyresorufin O-dealkylase PTU 6-n-propyl-2-thiouracil PXR pregnane X receptor QNB quinuclidinyl benzilate RfC reference concentration RfD reference dose RNA ribonucleic acid s.c. subcutaneous SD standard deviation SXR steroid X receptor T 3 PentaBDE was the second most frequently detected FR (n = 17) with an average concentration of 18.34 mg/g of foam and ranging from 6.54 to 43.17 mg/g of foam.

On registration: Paragraph 1(b) of Part IV does not apply to Canada as Canada has not set levels / concentrations on articles for permitted sale, use, import or manufacture at this time. 2011-11-01 · Elevated PentaBDE body burdens in humans are associated with adverse effects on circulating hormone levels, fecundability, impaired neurodevelopment, and an increased incidence of adverse birth outcomes, such as decreased weight and cryptorchidism (Chao et al., 2007, Main et al., 2007, Turyk et al., 2008, Meeker et al., 2009, Harley et al Translations of the phrase CON PENTABDE from spanish to english and examples of the use of "CON PENTABDE" in a sentence with their translations: contienen componentes sólidos o espumas con pentabde , se almacenan en exteriores Se hela listan på pops.int Translations of the word PENTABDE from english to finnish and examples of the use of "PENTABDE" in a sentence with their translations: the marketing and use of pentabde . PentaBDE Chemical class (when available/relevant) Polybrominated diphenyl ethers CAS number 32534-81-9 EC number 251-084-2 Molecular formula C 12H 5Br 5O Molecular structure (example structure of a pentaBDE congener) Molecular weight (g.mol-1) 564.7 3 Common name Octabromodiphenyl ethers Chemical name (IUPAC) Diphenyl ether, octabromo derivative PentaBDE OctaBDE DecaBDE .
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Posts about PentaBDE written by O Ecotextiles (and Two Sisters Ecotextiles)

pentaBDE pentabromodiphenyl ether PKC protein kinase C PND postnatal day PR progesterone receptor PROD pentoxyresorufin O-dealkylase PTU 6-n-propyl-2-thiouracil PXR pregnane X receptor QNB quinuclidinyl benzilate RfC reference concentration RfD reference dose RNA ribonucleic acid s.c. subcutaneous SD standard deviation SXR steroid X receptor T 3 Polybrominated diphenyl ethers (PBDEs) are brominated flame retardants. Technical mixtures PentaBDE and OctaBDE were phased out in 2004 through voluntary and regulatory actions with DecaBDE remaining in limited use until 2013.

NB: Registration status and tonnage. The REACH Registered substance portal was updated on 9th November 2020; the REACH registered factsheets were further updated on 21st December 2020.

An RfD of 0.002 mg/kg-day was derived, based on a no-observed-adverse-effect level (NOAEL) of 1.8 mg/kg-day for PentaBDE and octaBDE mixtures were voluntarily withdrawn from the U.S. marketplace by their manufacturers at the end of 2004 and decaBDE was not to be manufactured or imported into the United States after December 31, 2013. Translations in context of "PentaBDE" in English-Italian from Reverso Context: This amendment goes beyond the present proposal to restrict the marketing and use of pentaBDE. PentaBDE was the second most frequently detected FR (n = 17) with an average concentration of 18.34 mg/g of foam and ranging from 6.54 to 43.17 mg/g of foam.

The toxicity of this compound has been well documented in the literature, especially with regard to the endocrine system, induction of liver microsomal enzymes, and disturbance of redox (5) The presence of pentaBDE or octaBDE in concentrations higher than 0,1 % can be identified using standard analytical techniques such as GC-MS (gas chromatography-mass spectrometry). (6) The risk assessment on decaBDE was concluded in August 2002 and has revealed a number of uncertainties concerning possible effects on the environment of this substance. Until recently, pentabromodiphenyl ether (PentaBDE) was most commonly used as a flame retardant. On account of the hazardous effect of PentaBDE on the environment, its use was discontinued some years ago. The toxicity of this compound has been well documented in the literature, especially with regard to the endocrine system, induction of liver microsomal enzymes, and disturbance of redox PentaBDE may enter the body by ingestion or inhalation.