The theoretical understanding of the spin-glass transition in canonical spin glass still remains controversial. A chrality driven mechnism has been suggested by Kawamura, who pointed out that for small spin anisotropy the spin-glass transition is dominated by that of a transition to a chiral glass. Recently Taniguchi et al. succeeded to observe the Hall resistivity andmagnetization simultaneously for AuFe 8 at. %. They could then show that the temperature dependence of the anomalous Hall coefficient Rs contains a bifrucation irrespective of the applied field strength, which is consistent with Kawamura's chirality hypothesis.We have recently performed polarized neutron small-angle scattering experiment on PtMn8% sample and have obtained first sign of the asymmetric contribution of the polarization dependent cross section, which may be related to the dynamic chirality proportional to the anomalous Hall coefficient observed by Taniguchi et al.. To investigate this asymmetric behavior we propose an experiment on D33 to perform further temperature and field dependent measurements.