Dividend Acid Test Formula

I thought the title of TheStreet article, "7 Dow Dividend Stocks Safer Than T-Notes", was too questionable, but the article does have something useful for dividend stock investors to consider: the dividend acid test formula. Here's an excerpt from the article:

By ensuring that the stock's dividend yield is less than the liability-adjusted cash flow yield (LACFY), investors can be reasonably confident that an operational incident or upcoming debt maturity won't derail their dividend check. [...] This formula also demands that the LACFY be greater than the 10-year Treasury yield [...] Of the 30 stocks on the Dow Jones Industrial Average, only seven meet these criteria.