“…For the SB4-20 product (see Figure A -1), the up and down flow curves overlaid, but the model was also fitted to the down curve. The SB4-19 product yield stress is within the nominal DWPF operating window and is similar to the yield stress measured for other SRAT products, but the consistency was slightly higher (Koopman 2004). For the SB4-20 product, the yield stress is below the nominal DWPF operating range but is consistent with some of the SRAT products tested during SB3 qualification, while the consistency was within the nominal range (Koopman 2004).…”