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Air and gas purity BS 4001

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Water Vapour

500 mg/m3

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{"id":5399976,"question_id":"1362050","created_at":"2021-07-25 11:54:59","updated_at":"2021-07-25 11:54:59","answerTitle":"500 mg\/m3","isAnswerCorrect":"1","isAnswerBlank":null,"isInSecondMatchingColumn":null,"sequenceOrder":null,"lang":null,"type":0}

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1362051

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Carbon dioxide

500 ppm

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{"id":5399977,"question_id":"1362051","created_at":"2021-07-25 11:54:59","updated_at":"2021-07-25 11:54:59","answerTitle":"500 ppm","isAnswerCorrect":"1","isAnswerBlank":null,"isInSecondMatchingColumn":null,"sequenceOrder":null,"lang":null,"type":0}

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Carbon monoxide

10 ppm

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{"id":5399978,"question_id":"1362052","created_at":"2021-07-25 11:54:59","updated_at":"2021-07-25 11:54:59","answerTitle":"10 ppm","isAnswerCorrect":"1","isAnswerBlank":null,"isInSecondMatchingColumn":null,"sequenceOrder":null,"lang":null,"type":0}

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1362053

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Oil

1 mg/ m3

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{"id":5399979,"question_id":"1362053","created_at":"2021-07-25 11:54:59","updated_at":"2021-07-25 11:54:59","answerTitle":"1 mg\/ m3","isAnswerCorrect":"1","isAnswerBlank":null,"isInSecondMatchingColumn":null,"sequenceOrder":null,"lang":null,"type":0}

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