Laboratory setting-ah chuan sodium sulfide hman hunah fimkhur zual a ngai a ni. Hman hmain safety goggles leh rubber gloves bun tur a ni a, operation pawh fume hood chhunga tih a tha ber. Reagent bottle chu hawn a nih veleh boruak atanga tui a lakluh loh nan plastic bag-ah seal nghal tur a ni a, chu chuan paste-ah a chantir ang. Bottle chu a tlu palh a nih chuan tuiin silfai suh! A hmasa berin, a luang chhuak chu hnim hring emaw lei emaw hmangin khuh la, chutah chuan plastic shovel hmangin bawlhhlawh bawm bikah dah khawm rawh.

Kan thawhhona hi a bik takin lungkhamna awm lo a ni a, COA analysis certificate leh MSDS safety data sheet a thlawna pek bakah third-party authoritative testing pawh a thlawp bawk. Thian mamawh nei te chuan engtik lai pawhin hetah hian click la, min rawn biak theih reng e!