GB 9968-2008 Abolished National standards force_standard

GB 9968-2008 Rare earth nitrate for growth regulator for plant

GB 9968-2008 Rare earth nitrate for growth regulator for plant

Publish Date: 2008-03-31 Implement Date: 2008-09-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB 9968-2008

Standard Type: National standards

Standard Status: Abolished

is_force_gb: yes

CCS Name: Rare earth metals and their alloys

ICS Name: Other non-ferrous metals and their alloys

Publish Date: 2008-03-31

Implement Date: 2008-09-01

Pages: 5 pages

Scope

This standard specifies the requirements, test methods, inspection rules, and marking, packaging, transportation, and storage for nitrate rare earth plant growth regulators.
This standard applies to light rare earth minerals mainly composed of lanthanum and cerium, and nitrate rare earths (formula RE(NO3)3·6H2O) prepared from light rare earth concentrates obtained by extraction and separation, where RE consists of La, Ce, Pr, Nd, or at least two or more rare earth ions. This product is used as a plant growth regulator (the method of use is described in Appendix A).

Development Information

Word Count: 7 Thousand words Pages: 5 pages

Replace the following standards

GB 9968-1996 Rare earth nitrate for agricultural use

Referenced Standards

GB/T 8170-1987 Rules for rounding off of numberical values GB/T 8170-2008 Rules of rounding off for numerical values & expression and judgement of limiting values GB/T 12687.1-1990 Chemical analysis of nitrate of rare earth for agriculture—Determination of total rare earth oxide content—Gravimetric method GB/T 12687.1-2010 Chemical analysis methods of rare earth nitrate for growth regulator for plant—Part 1:Determination of arsenic,mercury,lead,cadmium and chromium contents—Inductively coupled plasma mass spectrometry method GB/T 12687.2-1990 Chemical analysis of nitrate of rare earth for agriculture—Determination of chlorine content—Mercurimetric method GB/T 12687.2-2010 Chemical analysis methods of rare earth nitrate for growth regulator for plant—Part 2:Determination of chlorine content GB/T 12687.3-1990 Chemical analysis of nitrate of rare earth for agriculture—Determination of arsenic content—Hydride generation flame atomic absorption spectrophotometric method GB/T 12687.3-2010 Chemical analysis methods of rare earth nitrate for growth regulator for plant—Part 3:Determination of the water insoluble matter content—Gravimetry GB/T 12687.4-1990 Chemical analysis of nitrate of rare earth for agriculture—Determination of mercury content—Flame atomic absorption spectrophotometric method GB/T 12687.5-1990 Chemical analysis of nitrate of rare earth for agriculture—Determination of chrome content-sys—Diphenyl carbazide spectrophotometric method GB/T 12687.6-1990 Chemical analysis of nitrate of rare earth for agriculture—Determination of lead and cadmium content—Flame atomic absorption spectrophotometric method GB/T 12687.7-1990 Chemical analysis of nitrate of rare earth for agriculture—Determination of thorum content—Spectrometric method with Cl-TBP levextred resin separation GB/T 12687.8-1990 Chemical analysis of nitrate of rare earth for agriculture—Determination for the water insoluble matter content—Gravimetric method

Related Standards

GB/T 13840-1992 Abolished

GB/T 13840-1992 Wafer carriers

Publish Date: 1992-12-28

GB/T 15677-1995 Replaced

GB/T 15677-1995 Lanthanum metal

Publish Date: 1995-08-11

GB/T 3136-1995 abolished_transferred

GB/T 3136-1995 Tantalum powders

Publish Date: 1995-10-17

GB/T 3463-1995 Abolished

GB/T 3463-1995 Tantalum wires

Publish Date: 1995-10-17

GB/T 3628-1995 Replaced

GB/T 3628-1995 Tantalum and tantalum alloy foils

Publish Date: 1995-10-17

GB/T 16476-1996 Replaced

GB/T 16476-1996 Scandium metal

Publish Date: 1996-07-09