NFF31-112 铁路车辆-涂鸦的防护-清除材料与产品性能的试验过程和评估方法.

NFF31-112 Railway rolling stock--Protection in relation to graffiti-Tests procedures and methods of valuation, behaviour of materials and products of expulsion.

NFF31-112涂鸦测试需要结合侵蚀性测试和有效性测试来共同评估。

侵蚀性测试结果分为三类:Good,Passable和Bad,只有当结果为Good或是Passable时,材料与清洁剂的配对组合才能被认为是无侵蚀性;否则,就是有侵蚀性。

有效性测试结果也分为三类:Good,Passable和Bad,只有当结果全部为Good,或者一个为Passable剩余全部为Good时,材料与清洁剂的配对组合才能被认为有效;否则,就是无效。

NFF31-112防涂鸦测试结果用G等级表示,不同等级要求的清洁剂种类也不同,只有当材料与清洁剂的配对组合同时满足无侵蚀性和有效时,才能评定材料为“可清洁”:

G0: material is “CLEANABLE” with water or dry;

G0:材料为“可清洁”,用水或者直接干燥

G1: material is “CLEANABLE” using a removal product that is not labeled with the danger symbol;

G1:材料为“可清洁”,用没有危险标注的清洁剂

G2: material is “CLEANABLE” using a removal product that is labeled “Xi” irritant and/or “F” inflammable;

G2:材料为“可清洁”,用标注了“Xi”刺激物或者“F”易燃物的清洁剂

G3: material is “CLEANABLE” using a removal product that is labeled “Xn” harmful and/or “C” corrosive;

G3:材料为“可清洁”,用标注了“Xn”有害物或者“C”腐蚀物的清洁剂

G4: material is “CLEANABLE” using a removal product that is labeled “T” toxic

G4:材料为“可清洁”,用标注了“T”有毒物的清洁剂

NN: material is “UNCLEANABLE”

NN:材料为“不可清洁”

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