Cart
0
Product
Products
(empty)
No products
To be determined
Shipping
$0.00
Total
Product successfully added to your shopping cart
Quantity
Total
There are 0 items in your cart.
There is 1 item in your cart.
Total products
Total shipping
To be determined
Total
New
Sale!
View larger
View larger
ISO 2556:1974
New product
ISO 2556:1974 Plastics - Determination of the gas transmission rate of films and thin sheets under atmospheric pressure - Manometric method
standard by International Organization for Standardization, 06/01/1974
More info
Full Description
Specification of the methodand of two types of suitable test apparatus. The plastic test specimen separates two chambers, the one contains the test gas at atmospheric pressure, the other of known initial volume has the air pumped out until the pressure is practically zero. The quantity of gas which passes through the specimen from one chamber to the other is determined as a function of time by measuring the increase in pressure occuring in the second chamber by means of a manometer.