Standards

DB37/T 1115-2008 DB37/T 1115-2008 English translation for bilingual signs in public places

Publish Date: 2009-01-06

GB/T 3249-2009 Test method for Fisher number of metal powders and related compounds

1.1 This method uses the principle of air permeability to determine the surface area of metal and its compound powders, as well as the average equivalent spherical particle diameter related to them (range 0.5μm to 50μm). The powders can be tested in their "supply state" or after being dispersed or milled by the laboratory in accordance with the provisions of ASTM B 859. The measured values may not fully reflect the actual condition of the powders, but they are very useful for powder quality control.
1.2 This standard does not address related safety issues. Users should establish appropriate safety and health operating procedures and determine their scope of application before using it.

Publish Date: 2009-01-05

GB/T 23276-2009 Method for chemical analysis of palladium compounds—Determination of palladium content—Complexometric titration using butanedione dioxime releasing EDTA

This standard specifies the method for determining the palladium content in palladium compounds.
This standard is applicable to the determination of palladium content in compounds such as palladium dichloride (PdCl2), palladium bromide (PdBr2), palladium nitrate dihydrate (Pd(NO3)2·2H2O), palladium sulfate (PdSO4), palladium sulfate dihydrate (PdSO4·2H2O), palladium dichloride diammonium (Pd(NH3)2Cl2), palladium tetrachloride diammonium (Pd(NH3)4Cl2), potassium palladium chloride (K2PdCl4), palladium nitrite diammonium (Pd(NO2)2(NH3)2), palladium nitrite tetrammonium (Pd(NO2)2(NH3)4), palladium acetate ([Pd(CH3COO)2]3), palladium bis(acetylacetone) (Pd(C5H7O2)2), palladium tetra(trifenylphosphine) (Pd［P(C6H5)3］4), palladium dichloride bis(trifenylphosphine) (PdCl2［P(C6H5)3］2), and 1,2-bis(trifenylphosphine) ethane dichloride (PdCl2［(C6H5)2PCH2CH2P(C6H5)2］). The measurement range is 5% to 70%.

Publish Date: 2009-01-05

GB/T 23271-2009 Molybdenum disulfide

This standard specifies the requirements, test methods, inspection rules, marking, packaging, transportation, storage, and the content of purchase orders (or contracts) for molybdenum disulfide.
This standard applies to molybdenum disulfide products produced by either natural or synthetic methods.

Publish Date: 2009-01-05

GB/T 1777-2009 Superfine palladium powder

This standard specifies the requirements for ultra-fine palladium powder, test methods, inspection rules, and marking, packaging, transportation, storage, and the content of purchase orders (or contracts), etc.
This standard applies to palladium powder used in electronic pastes and other products.

Publish Date: 2009-01-05

GB/T 1776-2009 Superfine platinum powder

This standard specifies the requirements for ultra-fine platinum powder, testing methods, inspection rules, and marking, packaging, transportation, storage, and the contents of purchase orders (or contracts), etc.
This standard applies to ultra-fine platinum powder used in the electronics industry.

Publish Date: 2009-01-05

GB/T 1775-2009 Superfine gold powder

This standard specifies the requirements for ultra-fine gold powder, testing methods, inspection rules, and marking, packaging, transportation, storage, and the contents of purchase orders (or contracts), etc.
This standard applies to ultra-fine gold powder used in electronic pastes.

Publish Date: 2009-01-05

CJ/T 304-2008 Technical requirement for chip operate system of CPU card in construction case

This standard specifies the electrical characteristics, logical interfaces, and transmission protocols of CPU cards in the construction industry; files and commands; application selection; security mechanisms and requirements; electronic wallet/e-purse applications; and corresponding definition symbols.
This standard applies to departments (units) involved in the design, manufacture, management, issuance, and development of card and terminal products related to IC card applications in the construction industry, as well as the development, integration, maintenance, and supervision of application systems.

Publish Date: 2008-12-12

CJ/T 300-2008 Water hammer arrestor for water supply systems of buildings

This standard specifies the structural form, product models, requirements, test methods, inspection rules, marking, packaging, storage and transportation of water hammer absorbers for building water supply (hereinafter referred to as absorbers).
This standard applies to water hammer absorbers used in water supply pipelines with nominal sizes of DN15 to DN400, nominal pressures not exceeding PN40, and water temperatures ranging from 0°C to 70°C. It can also be used for water hammer absorbers in other water supply and distribution pipelines with the same or similar media and operating conditions.

Publish Date: 2008-12-12

GB/T 5009.9-2008 Determination of starch in foods

This standard specifies the method for determining starch in food.
This standard is applicable to the determination of starch in food.

Publish Date: 2008-12-03

GB/T 5009.88-2008 Determination of dietary fiber in foods

This standard specifies the methods for determining the total, soluble, and insoluble dietary fiber in food, as well as the method for determining the insoluble dietary fiber in plant-based foods.
This standard applies to the determination of total, soluble, and insoluble dietary fiber in plant-based foods and their products, as well as the determination of insoluble dietary fiber in various plant-based foods and mixed foods containing plant-based foods.
The detection limits for the determination of total, soluble, and insoluble dietary fiber, as well as the method for determining insoluble dietary fiber, are all 0.1 mg.

Publish Date: 2008-12-03

GB/T 5009.8-2008 Determination of saccharose in foods

This standard specifies the method for determining the sucrose content in food.
This standard is applicable to the determination of sucrose content in food.

Publish Date: 2008-12-03