For many years , new zealand beekeepers have used a umf rating to promote their manuka honey .

多年来，新西兰养蜂人一直沿用一种独活素等级评定的方法来推广他们的麦卢卡蜂蜜。

The umf test however is difficult to standardise , and has led to many laboratories providing inaccurate results .

无论如何，独活素测试难以定标准，并从而导致许多实验室提供不精确的结果。