Electronic pencracker tests, appearance, safety, etc. Cma/cnas qualification reports, hns

Testing standards and projects:
Qb/t 4846-2015 6. 3. 3 counterpoint item: cutting of core
Qb/t 4846-2015 6. 3. 6 counterpart item: cut time
3. Qb/t 4846-2015 6. 3. 4 counterpoint: cutting angle
Qb/t 4846-2015 6. 6, countering item: noise
Qb/t 4846-2015 6. 1, counterpoint item: appearance
Qb/t 4846-2015 6. 2, counterpoint item: security
Qb/t 4846-2015 6. 3. 5 counterpoint item: pen-tip diameter
Qb/t 4846-2015 6. 4, counterpoint item: durability
Qb/t 4846-2015 6. 5, countering item: decline performance
Only partial references