This standard specifies how to determine the color number, viscosity, acid value, and pH of polyether polyols used as raw materials for polyurethane.
JIS K 1557-5:2007 Referenced Document
JIS K 0071-1 Test methods for colour of chemical products -- Part 1: Estimation of colour in Hazen units (platinum-cobalt colour scale)*, 2017-11-20 Update
JIS K 0071-2 Testing methods for colour of chemical products -- Part 2: Gardner colour scale
JIS K 0113 General rules for methods of potentiometric, amperometric, coulometric, and Karl Fischer titrations
JIS K 5600-2-3 Testing methods for paints -- Part 2: Characteristics and stability of paints -- Section 3: Viscosity (Corn and plate methods)*, 2014-03-20 Update
JIS K 7117-1 Plastics -- Resins in the liquid state or as emulsions or dispersions -- Determination of apparent viscosity by the Brookfield Test method
JIS K 1557-5:2007 history
2007JIS K 1557-1:2007 Plastics -- Polyols for use in the production of polyurethane -- Part 1: Determination of hydroxyl number
1970JIS K 1557:1970 Testing method of polyether for polyurethane