ISO Standards

Free Standards Online

#	Title
131	ISO 9336-3:2020 Optics and photonics — Optical transfer function — Application — Part 3: Telescopes
132	ISO 22764:2020 Jewellery and precious metals — Fineness of solders used with precious metal jewellery alloys
133	ISO 15727:2020 UV-C devices — Measurement of the output of a UV-C lamp
134	ISO 4874:2020 Tobacco — Sampling of batches of raw material — General principles
135	ISO 12809:2020 Crop protection equipment — Reciprocating positive displacement pumps and centrifugal pumps — Test method
136	ISO 15184:2020 Paints and varnishes — Determination of film hardness by pencil test
137	ISO 22426:2020 Assessment of the effectiveness of cathodic protection based on coupon measurements
138	ISO 20662:2020 Ships and marine technology — Hopper dredger supervisory and control systems
139	ISO 21904-2:2020 Health and safety in welding and allied processes — Equipment for capture and separation of welding fume — Part 2: Requirements for testing and marking of separation efficiency
140	ISO 21631:2020 Essential oil of clementine (Citrus clementina hort. ex Tanaka syn. Citrus reticulata Blanco × Citrus sinensis (L.) Osbeck), Spanish type