GB/T — National Recommended
Found: 49361 — page 915 of 1029
Valid
GB/T 21198.5-2007 — Determination of precious metals in precious metals jewellery alloys -- Method using ICP spectrometry -- Part 5: 999‰ silver jewellery alloys -- Determination of silver -- Difference method
National·Recommended
Instant delivery (0–9 sec)
$165.006 pages
Valid
GB/T 21198.6-2007 — Determination of precious metals in precious metals jewellery alloys -- Method using ICP spectrometry -- Part 6: Difference method
National·Recommended
Instant delivery (0–9 sec)
$85.007 pages
Valid
GB/T 21201-2007 — Dry dual-component developer for laser printer
National·Recommended
Instant delivery (0–9 sec)
$205.009 pages
Valid
GB/T 21204.1-2007 — Multicore and symmetrical pair/quad cables for digital communications to be used in harsh environments -- Part 1: Generic specifications
National·Recommended
Instant delivery (0–9 sec)
$465.0034 pages
Valid
GB/T 21206-2007 — Characteristics of line post insulators
National·Recommended
Instant delivery (0–9 sec)
$195.0011 pages
Valid
GB/T 21207-2007 — Low-voltage switchgear and controlgear -- Device profiles for networked industrial devices -- Part 1: General rules for development of device profiles
National·Recommended
Instant delivery (0–9 sec)
$650.0066 pages
Valid
GB/T 21208-2007 — Low-voltage switchgear and controlgear -- Controllers for drivers of stationary fire pumps
National·Recommended
Instant delivery (0–9 sec)
$500.0039 pages
Valid
GB/T 21216-2007 — Insulating liquids -- Determination of the dielectric dissipation factor by measurement of the conductance and capacitance -- Test method
National·Recommended
Instant delivery (0–9 sec)
$185.008 pages
Valid
GB/T 21217.1-2007 — Corrugated pressboard and press paper for electrical purposes -- Part 1: Definitions designations and general requirements
National·Recommended
Instant delivery (0–9 sec)
$65.004 pages
Valid
GB/T 21222-2007 — Methods for the determination of the lightning impulse breakdown voltage of insulating liquids
National·Recommended
Instant delivery (0–9 sec)
$145.007 pages
Valid
GB/T 21223-2007 — Guide for the statistical analysis of ageing test data -- Part 1: Methods based on mean values of normally distributed test results
National·Recommended
Instant delivery (0–9 sec)
$195.0026 pages
Valid
GB/T 21224-2007 — Methods of test for the evaluation of water treeing in insulating materials
National·Recommended
Instant delivery (0–9 sec)
$265.0012 pages
Valid
GB/T 21225-2007 — Emergency power supply with inverter
National·Recommended
Instant delivery (0–9 sec)
$435.0029 pages
Valid
GB/T 21226-2007 — Semiconductor convertors -- Identification code for convertor connections
National·Recommended
Instant delivery (0–9 sec)
$235.001989 pages
Valid
GB/T 21228.1-2007 — Acoustics -- Sound-scattering properties of surfaces -- Part 1: Measurement of the random-incidence scattering coefficient in a reverberation room
National·Recommended
Instant delivery (0–9 sec)
$175.0010 pages
Valid
GB/T 21229-2007 — Acoustics -- Determination of sound power levels of noise from air-terminal devices, air-terminal units, dampers and valves by measurement in a reverberation room
National·Recommended
Instant delivery (0–9 sec)
$265.0012 pages
Valid
GB/T 21231-2007 — Acoustics -- Measurement of airborne noise emitted and structure-borne vibration induced by small air-moving devices -- Part 1: Airborne noise measurement
National·Recommended
Instant delivery (0–9 sec)
$345.0025 pages
Valid
GB/T 21232-2007 — Acoustics -- Guidelines for noise control in offices and workrooms by means of acoustical screens
National·Recommended
Instant delivery (0–9 sec)
$235.0012 pages
Valid
GB/T 21236-2007 — Silica fume from electric-furnace
National·Recommended
Instant delivery (0–9 sec)
$75.0015 pages
Valid
GB/T 21243-2007 — Assignation of harzard classification of fireworks and firecrackers
National·Recommended
Instant delivery (0–9 sec)
$135.0015 pages
Valid
GB/T 21244-2007 — Paper cores
National·Recommended
Instant delivery (0–9 sec)
$70.0015 pages
Valid
GB/T 21245-2007 — Paper and board -- Determination of color (C/2-degreediffuse reflectance method)
National·Recommended
Instant delivery (0–9 sec)
$135.007 pages
Valid
GB/T 21247-2007 — Specifications for identification system of spilled oil on the sea
National·Recommended
Instant delivery (0–9 sec)
$495.0028 pages
Valid
GB/T 21261-2007 — Product of geographical indication - Yuquan liquor
National·Recommended
Instant delivery (0–9 sec)
$105.0015 pages
Valid
GB/T 21262-2007 — Product of geographical indication - Yongchun Mie Xiang
National·Recommended
Instant delivery (0–9 sec)
$225.0015 pages
Valid
GB/T 21263-2007 — Product of geographical indication - Niulanshan erguotou Liquor
National·Recommended
Instant delivery (0–9 sec)
$165.0015 pages
Valid
GB/T 21264-2007 — Cottonseed meal (solvent) for feedstuffs
National·Recommended
Instant delivery (0–9 sec)
$95.0015 pages
Valid
GB/T 21265-2007 — Pungency degree sensory evaluation method for capsicum
National·Recommended
Instant delivery (0–9 sec)
$225.009 pages
Valid
GB/T 21266-2007 — Determination of total capsaicinoid content and representation of pungency degree in capsicum and its products
National·Recommended
Instant delivery (0–9 sec)
$135.0015 pages
Valid
GB/T 21272-2007 — Vapour vacuum pumps measurement of performance characteristics -- Measurement of back-streaming rate of pump fluid and the heating time
National·Recommended
Instant delivery (0–9 sec)
$135.007 pages
Valid
GB/T 21273-2007 — Environmentally conscious design -- Integrating environmental aspects into design and development of electrotechnical products
National·Recommended
Instant delivery (0–9 sec)
$285.0013 pages
Valid
GB/T 21278-2007 — Refrigerators for conserved blood
National·Recommended
Instant delivery (0–9 sec)
$195.0015 pages
Valid
GB/T 21279-2007 — Hydraulic test method for packaging of dangerous chemical products
National·Recommended
Instant delivery (0–9 sec)
$85.004 pages
Valid
GB/T 21280-2007 — Test method of thermal stability for dangerous products
National·Recommended
Instant delivery (0–9 sec)
$85.004 pages
Valid
GB/T 21281-2007 — Test method of fish acute toxicity for dangerous chemical products
National·Recommended
Instant delivery (0–9 sec)
$85.004 pages
Valid
GB/T 21282-2007 — Rubber/Plastics weatherstrip for automobile
National·Recommended
Instant delivery (0–9 sec)
$105.0026 pages
Valid
GB/T 21283.1-2007 — Rotary shaft lip-type seals incorporating thermoplastic sealing elements -- Part 1: Nominal dimensions and tolerances
National·Recommended
Instant delivery (0–9 sec)
$225.009 pages
Valid
GB/T 21283.2-2007 — Rotary shaft lip-type seals incorporating thermoplastic sealing elements -- Part 2: Vocabulary
National·Recommended
Instant delivery (0–9 sec)
$265.0012 pages
Valid
GB/T 21285-2007 — Tubes valves -- Identification system for valves and their components
National·Recommended
Instant delivery (0–9 sec)
$135.006 pages
Valid
GB/T 21286-2007 — Repair of pneumatic tyres
National·Recommended
Instant delivery (0–9 sec)
$225.0015 pages
Valid
GB/T 21289-2007 — Frozen roasted eel
National·Recommended
Instant delivery (0–9 sec)
$165.0015 pages
Valid
GB/T 21292-2007 — Fishing nets -- Determination of mesh breaking force of netting
National·Recommended
Instant delivery (0–9 sec)
$85.005 pages
Valid
GB/T 21293-2007 — Determination of fiber length and distribution parameters -- Almeter method
National·Recommended
Instant delivery (0–9 sec)
$285.0012 pages
Valid
GB/T 21297-2007 — Laboratory glassware -- Interchangeable conical ground joint
National·Recommended
Instant delivery (0–9 sec)
$145.007 pages
Valid
GB/T 21298-2007 — Laboratory glassware -- Text tubes
National·Recommended
Instant delivery (0–9 sec)
$165.007 pages
Valid
GB/T 21300-2007 — Plastics pipes and fittings -- Determination of opacity
National·Recommended
Instant delivery (0–9 sec)
$85.004 pages
Valid
GB/T 21301-2007 — Inkjet printing paper
National·Recommended
Instant delivery (0–9 sec)
$165.0015 pages
Valid
GB/T 21302-2007 — General rules of laminated films & pouches for packaging
National·Recommended
Instant delivery (0–9 sec)
$321.0018 pages