Nhau

ASTM D3420 ndiyo nzira inozivikanwa yekuAmerica yekudzivirira kukweshana, yakagadzirirwa zvakananga kuongorora kugara kwenguva refu kwepurasitiki, machira matete uye kushongedza. Inoshandisa nzira yekuedza kukweshana inotenderera kuti idzokorore mamiriro ekukweshana chaiwo, kusanganisira kukweshana kwezuva nezuva, kukweshana kweguruva uye kukweshana kwenguva refu kunoenderera mberi.

Iyi chiyero inonyanya kushandiswa pakugadzira zvinhu zvemagetsi, mafirimu epurasitiki, machira ekurongedza akadhindwa uye zvikamu zvekushongedza zvemidziyo yemumba, uye ndiyo nzira huru yekuongorora kutevedzera mitemo yekupinda mumusika weNorth America, kusimbiswa kwechigadzirwa cheAmazon uye kuongororwa kwemhando yepamusoro kwevatengesi vezvigadzirwa zvekuUS.

ASTM D2794 inotsanangura nzira yekuyedza yekuongorora kuramba kwezvipfeko zveorganic uye kugara kwenguva refu kwezvipfeko zveorganic. Yakasiyana nemiedzo yekukweshana yakavakirwa pakukweshana, inotarisa pakushanda kwezvipfeko kana zvangoerekana zvarova uye kuchinja kwemakanika. Yave chiyero chakakosha chekudzora hunhu hwezvipfeko zvemaindasitiri, zvikamu zvemotokari uye maindasitiri ekupedzisa pamusoro pesimbi.

Panyaya yemitemo yekutevedzera mitemo, machira anoonekwa seakakodzera kana pasina kutsemuka, kukwesha, kucheka kana kusvibiswa kwe substrate mushure mekukanganisa kwakajairika. Chero kukuvara kwemavara kunoonekwa pasi pemutoro wekukuvara kwakatarwa kunotungamira kumhedzisiro yekukundikana kwebvunzo.

DIN 5316 chiyero cheGerman chakagadzirirwa zvinhu zvakapfava uye zvinochinjika, chakagamuchirwa zvakanyanya kuti chibvumidzwe chigadzirwa cheEU. Chinoshanda kune zvinhu zvakasiyana-siyana zvakaita serabha, mapurasitiki anochinjika, machira akapfava, dehwe uye machira akagadzirwa.

Bvunzo iyi inoshandisa kukweshana kunodzokororwa kwemutsara wepasi kuti ifananidze kuneta kwekukweshana uye kupfeka kwakakombama kunodzokororwa kunosangana nezvigadzirwa zvinochinjika pakushandiswa chaiko. Inoshanda sechiyero chekuongorora chemidziyo yemumba ine chitupa cheEU, mukati memotokari zvakapfava uye zvinhu zvekurongedza zvinochinjika.

Kusarudza mwero wakakodzera wekuyedza kukwesha zvichibva pahunhu hwezvinhu uye nzvimbo dzekutengesa dzakakosha pakutevedzera musika wepasi rose. ASTM D3420, ASTM D2794 uye DIN 5316 zvakasiyana zvakanyanya mumatanho ekuyedza uye mamiriro ekushandisa uye hazvichinjiki. Kusarudzwa kwakakodzera kwemwero kunogonesa vagadziri kugadzirisa maitiro ekudzora mhando, kubvisa njodzi dzezvitupa, uye kuwedzera kukwikwidzana kwechigadzirwa mumusika wepasi rose.