厂家直销 改性大豆磷脂

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大豆磷脂
soy lecithin
质量标准
specification
检查项目
test items
标准规定
acceptance criteria
1.性状
description
色泽为黄色或棕色,呈粘稠液状或粉状。磷脂特有气味,无异味。
yellow or brown viscidity、powder,withpeculiarly lecithin odor.
2.丙酮不溶物
acetone insolubles
应≥95%
not less than 95 percent.
3.干燥减重
loss on drying
应≤2.0%
not more than 2.0 percent.
4.正己烷不溶物
hexane insolubles
应≤0.3%
not more than0.3percent.
5.酸值
acid value
应≤36 mgkoh/g
not more than 36 mgkoh/g
6.过氧化值
peroxide value
应≤10 meq/kg
not more than 10 meq/kg
7.重金属
heavy metal
应≤20mg/kg
not more than 20 mg/kg
8.砷盐
arsenic
应≤3.0mg/kg
not more than 3.0 mg/kg
9.残留溶剂
residual solvent
应≤50mg/kg
not more than 50 mg/kg
保质期
shelf life
18个月
18 months
储存条件
storage condition
本品应存放在常温阴凉干燥处,避免高温或阳光直射
place in cool and dry condition. avoid direct sunray
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