date test meaning in English

播种期试验

In order to make our products safer , we have cooperated with the suppliers and set up strict systems of material testing and checking and accepting , providing the technology guidance to the growers doing fixed - date testing for growing soil of material and water supply , which can make sure that heavy metals and pesticide residues are under the control of national standard , thus making the natural pigment completely accord with the requirement of safety and health
为了使产品更安全，我们与供应商合作建立严格的原料检测、验收体系，对种植户进行技术指导，每年对原料生长的土壤和供水进行定期检测，以确保重金属、农药残留物完全控制在国家标准以内，使金三角牌天然色素完全符合安全、健康的要求。