SN/T 2889-2011Food contact materials for export. Polymers. Determination of toluene, ethylbenzene, propylbenzene, isopropylbenzene, styrene and total volatile substances in polystyrene. Gas chromatography method (English PDF)

SN/T 2889-2011 is the English-translated version of 出口食品接触材料 高分子材料 聚苯乙烯中甲苯、乙苯、丙苯、异丙苯、苯乙烯、总挥发性物质的测定 气相色谱法.

SN/T 2889-2011 — This standard specifies the polystyrene products and toluene, ethylbenzene, propylbenzene, cumene, styrene, gas chromatography detection of total volatile substances Measuring method.

This standard applies to polystyrene, toluene, ethylbenzene, propylbenzene, cumene, styrene, and determine the total volatiles article. This standard toluene, ethylbenzene, propylbenzene, cumene and styrene were measured lower limit of 200mg/kg.

Principle 2 Method 1. The sample is dissolved in tetrahydrofuran to p-ethylbenzene as internal standard, determined by gas chromatography (GC). Method two. using N, N- dimethylacetamide sample was dissolved in n-undecane as an internal standard, using headspace - by gas chromatography (HS-GC) Determination.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 7 pages — is available in the English PDF.

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