GB/T 451.2 Test for quantitative quantities of paper and cardboard, ISO 536 Test for grams of paper and cardboard
QB/T1671-1998 Physical properties test of paper and cardboard General technical conditions for special punching sample equipment
Quantitative sampler and precision electronic balance are used to detect the gram weight of paper and cardboard, by using a quantitative sampler to cut a standard sample of 100c㎡, and then put the standard sample on a precision balance for weighing, the weighing result is calculated to obtain the quantitative quantity of the product.
Round film paper cardboard non woven gram weight sampler