This Standard specifies the Gurley tester method and the Oken tester method of determining the air permeance and air resistance of paper and board (hereafter referred
to as "Gurley method"). For the Gurley method it is applicable to papers and boards which have air permeances between 0.1 μm/(Pa. s) and 100 μm/(Pa. s) or air and resistances between 1.4 s and 1 300 s. For the Oken tester method the ranges for air permeance and air resistance of paper and board applied are not limited. It is unsuitable for roughsurfaced materials, which cannot be securely clamped to avoid leakage.
NOTE : The International Standard corresponding to this Standard is as follows.
ISO 5635-5 : 2003 Paper and board--Determination of air permeance and
air resistance (medium range)--Part 5: Gurley method (MOD)
In addition, symbols which denote the degree of correspondence in the
contents between the relevant International Standard and JIS are IDT
(identical), MOD (modified), and NEQ (not equivalent) according to ISO/IEC Guide 21.
JIS P 8117:2009 Referenced Document
ISO 3104 Petroleum products — Transparent and opaque liquids — Determination of kinematic viscosity and calculation of dynamic viscosity*， 2023-10-01 Update
ISO 5636-1 Paper and board; Determination of air permeance (medium range); Part 1 : General method
JIS K 6253 Rubber, vulcanized or thermoplastic -- Determination of hardness