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Technical rule [CURRENT]

VDI 3869 Blatt 4

Measurement of ammonia in ambient air - Sampling with diffusive samplers - Photometric or ion chromatographic analysis
Edition 2012-03

Technical rule [CURRENT]

VDI 2262 Blatt 2

Workplace air - Reduction of exposure to air pollutants - Processing and organisation measures
Edition 2012-11

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