JIS K6816-2008《热塑管配件–维卡软化温度试验方法》

This Standard specifies the test method for Vicat softening temperature of thermo-
plastics pipes and fittings (hereafter, referred to as "pipes and fittings").
This test method is applicable to thermoplastic pipes and fittings of which the sof-
tening speed changes rapidly, but not applicable to crystalline or semi-crystalline plas-
tics pipes and fittings.
NOTE 1 Applicable thermoplastics pipes and fittings are such as unplasticized
polyvinyl chloride pipes and fittings.
NOTE 2 The International Standard corresponding to this Standard is as fol-
lows.
ISO 2507-1 : 1995 Thermoplastics pipes and fittings -- Vicat soften"
ing temperature- Part I : General test 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 (