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一、地膜厚度的测定商品塑料薄膜,有厂方标检规格。但有的厂商检验不严,膜质过厚,这不但增加了每亩用量,提高了成本费用,而且影响增产。为此,除厂方出厂应严格检验,保证质量外,进货单位和个人还应抽查检验。检验的方法很多,但基层供销社、农技站和农家个人缺乏检验精密仪器。在此介绍一个简单检验方法,公式如下: 塑膜厚度(毫米)=1米~2塑膜重量(克)/1000×塑膜比重计算1米~2塑膜重量,可量几米~2塑膜,用十分之一的天秤称量重量,即可求得。塑膜比重可称取一定重量塑膜,置于盛有蒸馏水(也可用自来水代替)的量筒
First, the determination of plastic film thickness Plastic film, a factory inspection standards. However, some manufacturers lax inspection, film quality is too thick, which not only increased the amount of per acre, raising costs and costs, but also affect the increase. To this end, in addition to the factory factory should be strictly tested, to ensure quality, purchase units and individuals should also random inspection. There are many ways of testing, but the lack of testing precision instruments at the grassroots level supply and marketing cooperatives, agricultural stations and farmers. Here is a simple test method, the formula is as follows: plastic film thickness (mm) = 1 m ~ 2 plastic film weight (g) / 1000 × plastic film weight calculation 1 m ~ 2 plastic film weight can be a few meters ~ 2 plastic film , With a tenth of the weighing scale weight, can be obtained. The proportion of plastic film can be said to take a certain weight plastic film, placed in distilled water (also available tap water instead of) measuring cylinder