American national standard specification for photographic grade sodium tetraborate pentahydrate, Na₂B₄O₇ x 5H₂O (borax, 5 mole) and decahydrate, Na₂B₄O₇ x 10H₂O (borax, 10 mole)
Cover title: American national standard specifications for photographic grade sodium tetraborate pentahydrate, Na₂B₄O₇·5H₂O (borax, 5 mole) and decahydrate, Na₂B₄O₇·10H₂O (borax, 10 mole).