Kata Pengantar
ISO (Organisasi Internasional untuk Standardisasi) adalah aliansi global badan standar nasional (badan anggota ISO). Pengembangan standar internasional biasanya dilakukan melalui komite teknis ISO. Setiap lembaga anggota yang berminat pada suatu mata pelajaran yang telah dibentuk panitia teknisnya berhak untuk diwakili dalam panitia tersebut. Organisasi internasional pemerintah dan non-pemerintah yang berhubungan dengan organisasi standardisasi juga terlibat dalam pekerjaan ini.

Draft international standards adopted by technical committees are circulated to member bodies for approval before they are accepted as international standards by the ISO Council. They are approved according to ISO procedures that require at least 75% approval by voting member institutions.

ISO standar internasional 3856/1 was developed by Technical committee ISO/TC 35 (Cat dan pernis).

The third edition cancels and replaces the second edition ISO 3856/1-1983, which is a minor revision.

0 Perkenalan
This international standard is part of ISO 3856, Cat dan pernis – Penentuan “larut” kandungan logam.

ISO 3856-1-1984 “Cat dan pernis – Penentuan” larut “kandungan logam – Bagian 1: Penentuan kandungan timbal – Spektrometri serapan atom api dan metode spektrofotometri ditizon”

Ruang lingkup dan bidang aplikasi
Bagian dari ISO ini 3856 describes two methods for determining the lead content of test solutions prepared in accordance with ISO 6713 or other appropriate international standards.

The method is suitable for “larut” coatings with lead content in the range of approximately 0.05% ke 5% (m/m).

In case of dispute, the flame atomic absorption spectroscopy (AAS) metode (Article 3) shall be used as the referee method. Other methods can be used by agreement between the parties involved. If spectrophotometry is agreed, then dithiazole spectrophotometry should be used (clause 4).

2 Bahan referensi
ISO 385/1, laboratory glassware burettes – Bagian 1: general requirements.

ISO 648, Laboratory glassware – Single label pipettes.

ISO 1042, Laboratory glassware – Single-labeled volumetric flasks.

ISO 3696, laboratory water use – Spesifikasi.

ISO 4800, Laboratory glassware – Separation funnel and drip funnel.

ISO 6713, Cat dan pernis – Preparation of acid extracts from paints in liquid or powder form.

Hanya komponen informasi standar yang tersedia untuk umum. Untuk melihat konten selengkapnya, Anda harus membeli standar melalui jalur formal.