This standard specifies the classification and naming, requirements, test methods, inspection rules, packaging, marking, transportation and storage of polytetramethylene ether glycol (PTMEG) for industrial use. This standard applies to industrial polytetramethylene ether glycol produced by polymerization of tetrahydrofuran monomer.
GB/T 25254-2010 Referenced Document
GB/T 3143 Color determination method of liquid chemicals(Hazen unit--Platinum-cobalt scale)
GB/T 601 Chemical reagent.Preparations of reference titration solutions*, 2016-10-13 Update
GB/T 603 Preparation of preparations and products used in chemical reagent test methods*, 2023-08-06 Update
GB/T 6283 Chemical products.Determination of water Karl.fischer method(general method)
GB/T 6678 General principles for sampling chemical products
GB/T 6680 General rules for sampling liquid chemical products
GB/T 6682 Water for analytical laboratory use.Specification and test methods
GB/T 8170 Rules of rounding off for numerical values & expression and judgement of limiting values
GB/T 25254-2010 history
2022GB/T 25254-2022 Poly-(tetra methylene ether glycol)(PTMEG) for industrial use
2010GB/T 25254-2010 Poly-(tetra methylene ether glycol) (PTMEG) for industrial