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502111 SUPELCO EPA 502/524 Volatiles Organic Calibration Mix A (without gases) 2000 μg/mL each component in methanol, analytical standard grade analytical standard description Separate Source Without gases CofA certificate of analysis is enclosed in each package. packaging ampule of 1 mL concentration 2000 μg/mL each component in methanol suitability suitable for 502.1 per US EPA suitable for 524.1 per US EPA suitable for 524.2 per US EPA storage temp. 2-8°C
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