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2. Karatmeter - Wikipedia

   en.wikipedia.org/wiki/Karatmeter

   Due to its very high precision and fast result, X-ray analysis has been adopted by international agencies in India as part of the certification process used to hallmark gold. [1] It is an accurate, non-destructive means of testing the purity of gold and other related elements. Analyzing gold using XRF spectrometers gives the purity of gold, up ...

3. Amazon Sued Over Prime Video Ads: Class-Action ... - AOL

   www.aol.com/amazon-sued-over-prime-video...

   The suit was filed Feb. 9, after Amazon starting on Jan. 29 began running ads in Prime Video content in major markets including the United States unless users opt to pay extra ($2.99/month in the ...

4. Amazon Moves to Dismiss Lawsuit Over Prime Video Ads ... - AOL

   www.aol.com/amazon-moves-dismiss-lawsuit-over...

   But because Amazon understood that some people would prefer not to see ads, Amazon offered an option for Prime Video users to watch ad-free content for $2.99/month,” according to the company’s ...

5. Amazon is bringing ads to Prime Video and will charge you to ...

   www.aol.com/amazon-bringing-ads-prime-video...

   Customers that want to skip ads can buy an ad-free tier for an additional $2.99 per month next year. Prime Video, which is home to “The Marvelous Mrs. Maisel” and “Citadel,” is included in ...

6. Touchstone (assaying tool) - Wikipedia

   en.wikipedia.org/wiki/Touchstone_(assaying_tool)

   This method has been used since ancient times. In modern times, additional tests can be done. The trace will react in different ways to specific concentrations of nitric acid or aqua regia, thereby identifying the quality of the gold: 24 karat gold is not affected but 14 karat gold will show chemical activity.

7. Metallurgical assay - Wikipedia

   en.wikipedia.org/wiki/Metallurgical_assay

   A model of a late 19th-century Canadian seal used to certify the quality of assayed gold. A metallurgical assay is a compositional analysis of an ore, metal, or alloy, usually performed in order to test for purity or quality. Some assay methods are suitable for raw materials; others are more appropriate for finished goods.

8. Amazon sued for deceiving subscribers with ads on Prime Video

   www.aol.com/amazon-sued-deceiving-subscribers...

   Analysts predict Amazon's Prime Video ads will generate billions more dollars in annual earnings, which CEO Andy Jassy promised will allow it to "continue investing meaningfully in content over time."

9. Fineness - Wikipedia

   en.wikipedia.org/wiki/Fineness

   24-carat gold is pure (while 100% purity is very difficult to attain, 24-carat as a designation is permitted in commerce for a minimum of 99.95% purity), 18-carat gold is 18 parts gold, 6 parts another metal (forming an alloy with 75% gold), 12-carat gold is 12 parts gold (12 parts another metal), and so forth. [20]