介绍16种有机标准物质的研制方法。
Development and preparation about 16 kinds of organic reference materials were described.
介绍有机标准物质的国内外现状，论述有机标准物质的制备和定值方法。
The status of the organic reference materials at home and abroad is introduced, and methods of the preparation and certification of the organic reference materials are discussed.
按NOP规定，要经过 认证的土地须按标准经营，而且在第一次有机农产品成熟前的3年（的时间）内不能使用被禁止的物质。
Land to be certified according to NOP must be managed according to the standard, and must not have received prohibited substances during 3 years before the first organic harvest.
有机原料，透露空气有机棉原料，到达联邦座椅平安保险标准，不含什么有害化学物质。
Organic FR. Breathable organic cotton fabric that meets federal car seat safety standards without any harsh chemicals.
将要认证的土地必须根据标准管理，根据NOP首次有机收获前3年内不得使用禁用物质。
Land to be certified according to NOP must be managed according to the standard, and must not have received prohibited sub stances during 3 years before the first organic harvest.
将要认证的土地必须根据标准管理，根据NOP首次有机收获前3年内不得使用禁用物质。
Land to be certified according to NOP must be managed according to the standard, and must not have received prohibited sub stances during 3 years before the first organic harvest.
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