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shipfree BlueLab It is very popular 2.77EC Conductivity Solution PH Calibra and 4.0 7.0

BlueLab 2.77EC Conductivity Solution, PH 7.0, and PH 4.0 Calibra

$23

BlueLab 2.77EC Conductivity Solution, PH 7.0, and PH 4.0 Calibra

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Product description

PH measuring equipment must be cleaned and calibrated regularly to ensure they are giving the user accurate readings. pH instruments are calibrated to pH 7.0 first (buffer) then to pH 4.0 (slope). Calibration Solutions should be stored in a cool place out of direct sun and heat. They should be stored with the lids securely tightened.


The EC2.77 solution is used as a reference or checking solution to ensure you have adequately cleaned the EC/ppm probe. Calibration Solutions should be stored in a cool place out of direct sun and heat. Please keep out of reach of children. They should be stored with the lids securely tightened.

BlueLab 2.77EC Conductivity Solution, PH 7.0, and PH 4.0 Calibra

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Jens Haaning's artwork "Take the Money and Run" is seen in the Kunsten Musem of Modern Art. The empty canvas was meant to hold thousands of dollars in cash — but the artist chose to hang on to the money. Niels Fabaek/Kunsten Museum of Modern Art hide caption

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Niels Fabaek/Kunsten Museum of Modern Art

A Museum Paid An Artist $84,000. He Sent 2 Blank Canvases Titled 'Take The Money And Run'

"The work is that I have taken their money," artist Jens Haaning said of his new piece. The commissioning museum in Denmark isn't satisfied with his explanation but is displaying the work nonetheless.

Prince Royce pictured during his performance at the virtual Democratic National Convention in August 2020. He and reggaeton artist Sech are among the many artists participating in NPR's "El Tiny" series in celebration of National Hispanic Heritage Month. /DNCC via Getty Images hide caption

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/DNCC via Getty Images

Get Ready For A Bachata And Reggaeton Flair With NPR Music's Next 'El Tiny' Concerts

There's a lot to look forward to when Latin music star Prince Royce and reggaeton artist Sech grace the "El Tiny" concert series.

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A crew member leaps to fix a logo for the 2022 Winter Olympics in Beijing earlier this month. The International Olympic Committee says it will allow fans from mainland China to attend the competition in person. Mark Schiefelbein/AP hide caption

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Mark Schiefelbein/AP

The Beijing Winter Olympics Will Allow Spectators — But Only From Mainland China

The International Olympic Committee says having fans present will create a favorable atmosphere at the games. Spectators will have to meet COVID-19 requirements, but those have not yet been outlined.

South Dakota Gov. Kristi Noem speaks during the Family Leadership Summit on July 16 in Des Moines, Iowa. Questions are floating around whether Noem had anything to do with the forced retirement of a state official after her daughter was denied a real estate appraiser's license. Charlie Neibergall/AP hide caption

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Charlie Neibergall/AP
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Questions Arise About Gov. Noem And The Early Retirement Of A South Dakota Official

SDPB Radio

After South Dakota Republican Gov. Kristi Noem's daughter was denied a real estate appraiser's license in the state, an official overseeing that program says she was forced into early retirement.

Jessica Rosenworcel of the Federal Communications Commission testifies at a Senate hearing in September 2016. Her term as acting FCC chairwoman is set to expire when Congress adjourns at the end of the year. Bill Clark/CQ Roll Call via Getty Images hide caption

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Bill Clark/CQ Roll Call via Getty Images

Biden Hasn't Named Picks For Posts To The FCC, And That's Frustrating Democrats

A 2-2 split on the commission could become a 2-1 GOP majority at the end of the year. That could stymie Democrats' efforts on a number of policies, including net neutrality standards.

Biden Hasn't Named Picks For Posts To The FCC, And That's Frustrating Democrats

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A Planet Fitness employee cleans equipment before a gym's reopening in March in Inglewood, Calif., after being closed due to COVID-19. Reduced access to recreation likely has contributed to weight gain during the pandemic. Patrick T. Fallon/AFP via Getty Images hide caption

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Patrick T. Fallon/AFP via Getty Images

COVID Made America's Obesity Crisis Worse — Especially Among Communities Of Color

New data shows the pandemic exacerbated an already fast-growing problem, tipping more Americans' weight over the scales into unhealthy territory.

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