Standards

GB/T 23274.8-2009 Active

GB/T 23274.8-2009 Methods for chemical analysis of stannic oxide—Part 8:Determination of loss on ignition—Gravimetric method

The GB/T 23274 standard specifies the method for determining the weight loss by combustion in tin dioxide.
This standard is applicable to the determination of the weight loss by combustion in tin dioxide, with a measurement range of 0.010% to 1.00%.

Publish Date: 2009-01-05

GB/T 23275-2009 Active

GB/T 23275-2009 Methods for chemical analysis of ruthenium determination of lead,iron,nickel,aluminum,copper,silver,gold,platinum,palladium, rhodium,iridium and silicon in ruthenium powder by glow discharge mass spectrometry

This standard specifies the determination methods for the contents of lead, iron, nickel, aluminum, copper, silver, gold, platinum, iridium, palladium, rhodium, and silicon in ruthenium powder.
This standard is applicable to the determination of the contents of lead, iron, nickel, aluminum, copper, silver, gold, platinum, iridium, palladium, rhodium, and silicon in ruthenium powder. The determination range is shown in Table 1.

Publish Date: 2009-01-05

GB/T 23277-2009 Active

GB/T 23277-2009 Chemical analysis methods of catalysts containing precious metals—Determination of platinum,palladium and rhodium in automobile exhaust-purifying catalysts—Spectrophotometry

This standard specifies the method for determining the amount of platinum, palladium, and rhodium in automotive exhaust purification catalysts.
This standard is applicable to the determination of the platinum, palladium, and rhodium content in new and failed automotive exhaust purification catalysts. The measurement range is Pt, Pd 20 g/t to 5,000 g/t, and Rh 20 g/t to 600 g/t.

Publish Date: 2009-01-05

GB/T 23278.1-2009 Active

GB/T 23278.1-2009 Methods for chemical analysis of sodium stannate—Part 1:Determination of tin content—Titration

This part of GB/T 23278 specifies the method for determining the tin content in sodium acetate.
This part is applicable to the determination of tin content in sodium acetate, with a measurement range of 35.00% to 44.00%.

Publish Date: 2009-01-05

GB/T 23278.2-2009 Active

GB/T 23278.2-2009 Methods for chemical analysis of sodium stannate—Part 2:Determination of iron content—1,10-phenanthroline photometric method

This part of GB/T 23278 specifies the method for determining the iron content in sodium acetate.
This part is applicable to the determination of iron content in sodium acetate, with a measurement range of 0.000 25% to 0.040%.

Publish Date: 2009-01-05

GB/T 23278.3-2009 Active

GB/T 23278.3-2009 Methods for chemical analysis of sodium stannate—Part 3:Determination of arsenic content—Molybdoantimonyarsenate blue spectrophotometric method

This part of GB/T 23278 specifies the determination of arsenic content in sodium arsenate.
This part is applicable to the determination of arsenic content in sodium arsenate, with a measurement range of 0.0002% to 0.005%.

Publish Date: 2009-01-05

GB/T 23278.4-2009 Active

GB/T 23278.4-2009 Methods for chemical analysis of sodium stannate—Part 4:Determination of lead content—Flame atomic absorption spectrometry

This part of GB/T 23278 specifies the method for determining the lead content in sodium acetate.
This part is applicable to the determination of lead content in sodium acetate, with a measurement range of 0.001% to 0.003%.

Publish Date: 2009-01-05

GB/T 23278.5-2009 Active

GB/T 23278.5-2009 Methods for chemical analysis of sodium stannate—Part 5:Determination of antimony content—Malachite green photometric method

This part of GB/T 23278 specifies the method for determining the arsenic content in sodium arsenate.
This part is applicable to the determination of arsenic content in sodium arsenate, with a measurement range of 0.000 2% to 0.050%.

Publish Date: 2009-01-05

GB/T 23278.6-2009 Active

GB/T 23278.6-2009 Methods for chemical analysis of sodium stannate—Part 6:Determination of free alkali content—Titration

This part of GB/T 23278 specifies the determination of free alkali in sodium acetate.
This part is applicable to the determination of free alkali in sodium acetate, with a measurement range of 0.50% to 10.00%.

Publish Date: 2009-01-05

GB/T 23278.7-2009 Active

GB/T 23278.7-2009 Methods for chemical analysis of sodium stannate—Part 7:Determination of alkali insoluble matter—Gravimetric analysis

This part of B/T 23278 specifies the determination of the alkali-insoluble content in sodium acetate.
This part is applicable to the determination of the alkali-insoluble content in sodium acetate, with a measurement range of 0.050% to 0.500%.

Publish Date: 2009-01-05

GB/T 23278.8-2009 Active

GB/T 23278.8-2009 Methods for chemical analysis of sodium stannate—Part 8:Determination of nitrate content—Ion selective electrode method

This part of GB/T 23278 specifies the method for determining nitrate in sodium acetate.
This part is applicable to the determination of nitrate in sodium acetate, with a determination range of 0.020% to 0.60%.

Publish Date: 2009-01-05

GB 19489-2008 Active

GB 19489-2008 Laboratories—General requirements for biosafety

This standard specifies the basic requirements for the facilities, equipment, and safety management of laboratories with different biosafety protection levels.
Chapter 5 and Sections 6.1 and 6.2 apply to the basic requirements for biosafety laboratories, and when necessary, they also apply to biosafety laboratories with higher protection levels and animal biosafety laboratories.
For laboratory activities related to the breeding of infected animals, this standard specifies the basic requirements for animal breeding facilities and environments in laboratories. When necessary, Sections 6.3 and 6.4 apply to animal biosafety laboratories with corresponding protection levels.
This standard applies to laboratories involved in the handling of biological factors.

Publish Date: 2008-12-26