1. la
zen should be manufactured by a formal professional factory in accordance with the technical conditions and safety specifications of the zen, and the product should have the quality certificate of the manufacturer, otherwise it is not allowed to be used.
2. The new zen should be subjected to a load test, and the opening of the measuring zen should not exceed 0.25% of the original opening.
3.During use, check whether the zen is cracked or severely deformed, corroded and worn.
4. la
zenyo ta dwe teste yon fwa chak ane. Pandan tès la, pote soti nan yon tès estatik nan 1.25 fwa admisib chaj la k ap travay pou 10 minit, epi tcheke avèk yon loup oswa lòt metòd. Pa ta dwe gen okenn fant, fant ak deformation rezidyèl.
5. Yo ta dwe netwaye twa seksyon danjere yo ak kewozèn. Sèvi ak yon loup pou wè si gen fant. Pou plak
zens, tcheke bag yo ak broch pou mete.
6. Defects on the zen shall not be repaired.
