評価・試験方法 (1)

[V-226] Measurement method of nitrite ion concentration in concrete using griess-romijn method

*Takeshi Tokunou¹, Kentaro Oomori², Shigeyuki Sogo³, Nobufumi Takeda⁴ (1. Japan Concrete Maintenance Association, 2. Nissan Chemical Corporation, 3. Near Future Concrete Association, 4. Hiroshima Institute of Technology)

Keywords:lithium nitrite, griess-romijn method, nitrite ion, surface penetrants