化工订单，看太不懂质量要求（英文），多缩写

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原文如下：
    环丙甲酰胺(CAS：6228-73-5）
Appearance: white to off-white powder
Potency: NLT 97 wt%
Purity: NLT 99 AP
Individual impurity (other than urea): NMT 0.05 AP using BMS LC method
Urea content: NMT 0.05 wt% using the BMS urea analysis method.
total volatile: report
water: report
Metal: NMT 20 ppm