Wear appropriate protective clothing, “do not let this chemical enter the environment”, and if you come in contact with it, “immediately flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes”. It’s ocean sand! MSDSs (Material Safety Data Sheets) are by and for lawyers: “Very few chemists, in my experience, spend much time with these forms at all, preferring to get their information from almost any other source.” [Derek Lowe via Virginia Postrel]
More: Interesting comments, including one on ionized water (if exposed, “flush the contaminated area with water”) and this from reader John: “Good news: if the sand is intended for use by children under 12, as of August 14 the sand itself will have to be permanently labeled with a batch number so it can be easily recalled.”