Betekenis van:
cap screw

Voorbeeldzinnen

1. Ampoules, of nominal capacity 1 ml, fitted with a polytetrafluoroethylene-lined aluminium crimp cap or screw cap.
2. Weigh into either a 100 ml or a 250 ml round-bottom flask (4.1) or a 100 ml bottle fitted with a screw cap (4.2), to the nearest 0,2 mg, from 0,1 to 1 g of the prepared sample (5.1).
3. a 100 ml round-bottomed flask (4.1) for open hydrolysis (5.3.2.3) or, a 250 ml round-bottomed flask (4.1) if a low sodium concentration is required (5.3.3.1) or, a 100 ml bottle fitted with a screw cap (4.2), for closed hydrolysis (5.3.2.4). The weighed sample portion must have a nitrogen content of about 10 mg and a moisture content not exceeding 100 mg.