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Estimating or calculating the dietary exposure to a given chemical or contaminant allows a comparison to a relevant health standard such as the acceptable daily intake(ADI), the acute reference dose (ARfD) or a reference dose (RfD), or a level known to cause adverse effects in animal or human health studies. [2]
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Gems & Gemology is a quarterly scientific journal published by the Gemological Institute of America. Each issue is devoted to research on diamonds , gemstones , and pearls . Topics include geographic sources, imitations and synthetics, treatments, and identification techniques.
Chronic toxicity data includes NOEC data. The lowest NOEC value in the test dataset is divided by an assessment factor between 10 and 100 dependent on the diversity of test organisms and the amount of data available. If there are more species or data, the assessment factor is lower. [1] [7]
GIA also exists to educate the gem and jewelry industry and the general public through its publications and outreach efforts. Most notable of these efforts is the quarterly publication of the magazine Gems & Gemology, a respected journal in the field. The journal includes full-length feature articles, as well as reports on GIA research ...
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AQSIQ was formed as the successor government body to the State Bureau of Quality and Technological Supervision (SBQTS). [3]: 52 In 2005, AQSIQ established a sui generis system to cover the use of geographical indication products through the 2005 Provisions on the Protection of GI Products.
Gem Testing Laboratory, Jaipur: This is a coloured gemstone centre in Jaipur. It grades and certifies all kinds of stones, its speciality is in coloured gemstones. Indian Gemological Institute, New Delhi: The Institute is located in New Delhi, IGI serves the gem testing and certification requirements of the industry in North India. [20] [21]